RENESAS RA2E1 Capacitive Sensor MCU Cov Lus Qhia

Cov ntsiab lus zais

1 RENESAS RA2E1 Capacitive Sensor MCU

2 Tshajview

3 CTSU Noise Countermeasure Functions

4 Hardware Noise Countermeasures

5 Software Lim

6 Kev ceev faj dav dav hauv kev tuav ntawm Microprocessing Unit thiab Microcontroller Unit Products

7 Cov ntaub ntawv / Cov ntaub ntawv

7.1 Cov ntaub ntawv

RENESAS RA2E1 Capacitive Sensor MCU

Capacitive Sensor MCU
Capacitive Touch Noise Immunity Guide

Taw qhia
Lub Renesas Capacitive Touch Sensor Unit (CTSU) tuaj yeem raug lub suab nrov hauv nws qhov chaw ib puag ncig vim tias nws tuaj yeem ntes cov kev hloov pauv hauv feeb, tsim los ntawm qhov tsis xav tau hluav taws xob tsis zoo (suab nrov). Cov nyhuv ntawm lub suab nrov no tuaj yeem nyob ntawm tus qauv tsim kho vajtse. Yog li ntawd, noj countermeasures ntawm tus tsim stage yuav ua rau CTSU MCU uas muaj kev cuam tshuam rau ib puag ncig lub suab nrov thiab kev tsim khoom zoo. Daim ntawv thov no piav qhia txog txoj hauv kev los txhim kho suab nrov tiv thaiv cov khoom siv Renesas Capacitive Touch Sensor Unit (CTSU) los ntawm IEC cov qauv kev tiv thaiv suab nrov (IEC61000-4).

Lub Hom Phiaj
RX Tsev Neeg, RA Tsev Neeg, RL78 Tsev Neeg MCUs thiab Renesas Synergy™ embedding lub CTSU (CTSU, CTSU2, CTSU2L, CTSU2La, CTSU2SL)

Cov qauv muaj nyob rau hauv daim ntawv thov no

IEC-61000-4-3
IEC-61000-4-6

Tshajview

Lub CTSU ntsuas tus nqi hluav taws xob zoo li qub los ntawm tus nqi hluav taws xob thaum kov electrode. Yog tias lub peev xwm ntawm qhov kov electrode hloov pauv vim lub suab nrov thaum ntsuas, qhov them tam sim no kuj hloov pauv, cuam tshuam rau cov nqi ntsuas. Tshwj xeeb, qhov hloov pauv loj hauv qhov ntsuas tus nqi yuav dhau qhov ntsuas qhov kov, ua rau lub cuab yeej ua haujlwm tsis zoo. Kev hloov pauv me me hauv qhov ntsuas tus nqi yuav cuam tshuam rau cov ntawv thov uas xav tau kev ntsuas kab. Kev paub txog CTSU capacitive kov nrhiav tus cwj pwm thiab lub rooj tsavxwm tsim yog qhov tseem ceeb thaum xav txog kev tiv thaiv suab nrov rau CTSU capacitive touch systems. Peb pom zoo thawj zaug CTSU cov neeg siv kom iliarize lawv tus kheej nrog CTSU thiab capacitive kov cov hauv paus ntsiab lus los ntawm kev kawm cov ntaub ntawv ntsig txog hauv qab no.

Cov ntaub ntawv tseem ceeb hais txog kev tshawb nrhiav capacitive thiab CTSU

Capacitive Touch Tus neeg siv phau ntawv qhia rau Capacitive Sensor MCUs (R30AN0424)
Cov ntaub ntawv hais txog kev tsim kho vajtse board
Capacitive Sensor Microcontrollers - CTSU Capacitive Touch Electrode Design Guide (R30AN0389)

Cov ntaub ntawv hais txog CTSU driver (CTSU module) software
RA Family Renesas Flexible Software Package (FSP) Tus neeg siv phau ntawv (Web Version - HTML)
API Siv> Modules> CapTouch> CTSU (r_ctsu)
RL78 Tsev Neeg CTSU Module Software Integration System (R11AN0484)
RX Family QE CTSU Module Firmware Integration Technology (R01AN4469)
Cov ntaub ntawv hais txog kov nruab nrab (KOV module) Software
RA Family Renesas Flexible Software Package (FSP) Tus neeg siv phau ntawv (Web Version - HTML)
API Siv> Modules> CapTouch> Kov (rm_touch)
RL78 Tsev Neeg Kov Module Software Integration System (R11AN0485)
RX Family QE Kov Module Firmware Integration Technology (R01AN4470)

Cov ntaub ntawv hais txog QE rau Capacitive Touch (capacitive touch application development tool)
Siv QE thiab FSP los tsim Capacitive Touch Applications (R01AN4934)
Siv QE thiab FIT los tsim Capacitive Touch Applications (R01AN4516)
RL78 Tsev Neeg Siv QE thiab SIS los tsim Capacitive Touch Applications (R01AN5512)
RL78 Tsev Neeg Siv Cov Txheej Txheem Standalone ntawm QE los tsim cov ntawv thov Capacitive Touch (R01AN6574)

Hom suab nrov thiab Countermeasures

Cov Qauv EMC
Table 2-1 muab cov npe ntawm EMC cov qauv. Lub suab nrov tuaj yeem cuam tshuam kev ua haujlwm los ntawm kev nkag mus rau hauv lub cev los ntawm cov pa tawm thiab cov kab txuas txuas. Daim ntawv no qhia txog IEC 61000 tus qauv raws li examples los piav txog hom suab nrov tsim tawm yuav tsum paub txog kom muaj kev ua haujlwm zoo rau cov tshuab siv CTSU. Thov xa mus rau qhov tseeb version ntawm IEC 61000 kom paub meej ntxiv.

Table 2-1 EMC Test Standards (IEC 61000)

Test Description	Tshajview	Txuj
Radiated Immunity Test	Ntsuam xyuas kev tiv thaiv rau cov suab nrov RF zaus	IEC 61000-4-3
Ua Immunity Test	Ntsuam xyuas kev tiv thaiv kom tsis tshua muaj suab nrov RF	IEC 61000-4-6
Electrostatic Discharge Test (ESD)	Ntsuam xyuas kev tiv thaiv rau electrostatic paug	IEC 61000-4-2
Hluav taws xob ceev Transient/Burst Test (EFT/B)	Kev sim rau kev tiv thaiv kom tsis tu ncua cov lus teb hloov pauv hloov mus rau hauv cov kab hluav taws xob, thiab lwm yam.	IEC 61000-4-4

Table 2-2 teev cov qauv kev ua tau zoo rau kev kuaj kev tiv thaiv kab mob. Cov txheej txheem kev ua tau zoo tau teev tseg rau EMC kev tiv thaiv kab mob, thiab cov txiaj ntsig tau raug txiav txim raws li kev ua haujlwm ntawm cov khoom siv thaum lub sijhawm kuaj (EUT). Cov qauv kev ua tau zoo yog tib yam rau txhua tus qauv.

Table 2-2 Kev Ua Tau Zoo rau Kev Ntsuas Kev Tiv Thaiv

Kev ntsuas kev ua haujlwm	Kev piav qhia
A	Cov cuab yeej siv yuav tsum ua haujlwm txuas ntxiv raws li qhov xav tau thaum lub sijhawm thiab tom qab kuaj. Tsis muaj kev puas tsuaj ntawm kev ua haujlwm lossis kev ua haujlwm tsis zoo raug tso cai qis dua qib kev ua haujlwm tau teev tseg los ntawm cov chaw tsim khoom thaum siv cov khoom siv raws li qhov xav tau.
B	Cov cuab yeej siv yuav tsum ua haujlwm txuas ntxiv raws li qhov xav tau thaum lub sijhawm thiab tom qab kuaj. Tsis muaj kev puas tsuaj ntawm kev ua haujlwm lossis kev ua haujlwm tsis zoo raug tso cai qis dua qib kev ua haujlwm tau teev tseg los ntawm cov chaw tsim khoom thaum siv cov khoom siv raws li qhov xav tau. Thaum lub sij hawm xeem, degradation ntawm kev ua tau zoo yog tso cai. Tsis muaj kev hloov pauv ntawm lub xeev ua haujlwm tiag lossis cov ntaub ntawv khaws cia raug tso cai.
C	Kev ua haujlwm poob ib ntus raug tso cai, yog qhov ua haujlwm tau rov qab los ntawm tus kheej lossis tuaj yeem rov qab los ntawm kev ua haujlwm ntawm kev tswj hwm.

RF Noise Countermeasures

RF suab nrov qhia tau hais tias electromagnetic nthwv dej ntawm lub xov tooj cua zaus siv los ntawm TV thiab xov tooj cua tshaj tawm, mobile devices, thiab lwm yam khoom siv hluav taws xob. RF suab nrov tuaj yeem nkag mus rau hauv PCB ncaj qha lossis nws tuaj yeem nkag mus los ntawm cov khoom siv hluav taws xob thiab lwm cov cables txuas. Cov kev ntsuas suab nrov yuav tsum tau ua nyob rau hauv lub rooj tsavxwm rau yav dhau los thiab nyob rau theem system rau tom kawg, xws li los ntawm cov khoom siv hluav taws xob. CTSU ntsuas capacitance los ntawm kev hloov nws mus rau hauv lub teeb liab hluav taws xob. Kev hloov pauv ntawm lub peev xwm vim qhov kov yog qhov tsawg heev, yog li txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau kov nws tus kheej nws yuav tsum tau txais kev tiv thaiv lub suab nrov, lub sensor tus pin thiab lub zog ntawm lub sensor nws tus kheej yuav tsum raug tiv thaiv los ntawm RF suab. Ob qhov kev ntsuam xyuas nrog qhov sib txawv ntawm qhov sib txawv yog muaj los kuaj rau RF suab tiv thaiv kab mob: IEC 61000-4-3 thiab IEC 61000-4-6.

IEC61000-4-3 yog qhov ntsuas hluav taws xob tiv thaiv hluav taws xob thiab siv los ntsuas kev tiv thaiv lub suab nrov los ntawm kev siv lub teeb liab ntawm lub xov tooj cua zaus electromagnetic rau EUT. RF electromagnetic teb nyob ntawm 80MHz mus rau 1GHz lossis siab dua, uas hloov mus rau wavelengths ntawm kwv yees li 3.7m txog 30cm. Raws li qhov wavelength thiab qhov ntev ntawm PCB zoo sib xws, tus qauv yuav ua raws li tus kav hlau txais xov, cuam tshuam rau CTSU ntsuas qhov tshwm sim. Tsis tas li ntawd, yog tias qhov txuas txuas ntev lossis cov kab mob parasitic sib txawv rau txhua qhov kov electrode, qhov cuam tshuam zaus yuav txawv rau txhua lub davhlau ya nyob twg. Xa mus rau Table 2-3 kom paub meej txog kev ntsuas hluav taws xob tiv thaiv kab mob.

Table 2-3 Radiated Immunity Test

Ntau zaus	Qib Kuaj	Test Field Strength
80MHz-1GHz Mus txog 2.7GHz lossis mus txog 6.0GHz, nyob ntawm kev sim version	1	1 V / m
	2	3 V / m
	3	10 V / m
	4	30 V / m
	X	Qhia rau tus kheej

IEC 61000-4-6 yog kev ntsuas kev tiv thaiv kab mob thiab siv los ntsuas cov zaus ntawm 150kHz thiab 80MHz, qhov qis dua li ntawm qhov ntsuas hluav taws xob tiv thaiv kab mob. Qhov no zaus band muaj ib tug wavelength ntawm ob peb meters los yog ntau tshaj, thiab lub wavelength ntawm 150 kHz mus txog 2 km. Vim tias nws nyuaj rau siv ncaj qha rau RF electromagnetic teb ntawm qhov ntev ntawm EUT, lub teeb liab kuaj tau siv rau cable ncaj qha txuas nrog EUT los ntsuas qhov cuam tshuam ntawm cov nthwv dej tsawg. Qhov luv luv wavelengths feem ntau cuam tshuam rau cov khoom siv hluav taws xob thiab cov teeb liab cables. Rau example, yog hais tias ib tug zaus band ua suab nrov uas cuam tshuam rau lub hwj chim cable thiab lub hwj chim mov voltage destabilizes, CTSU ntsuas cov txiaj ntsig tuaj yeem cuam tshuam los ntawm lub suab nrov thoob plaws txhua tus pins. Table 2-4 qhia cov ntsiab lus ntawm qhov kev sim tshuaj tiv thaiv kab mob.

Table 2-4 Ua Kev Ntsuas Kev Tiv Thaiv

Ntau zaus	Qib Kuaj	Test Field Strength
150 kHz-80 MHz	1	1 V rm os
	2	3 V rm os
	3	10 V rm os
	X	Qhia rau tus kheej

Nyob rau hauv ib qho AC fais fab mov tsim qhov system GND los yog MCU VSS davhlau ya nyob twg tsis txuas nrog lub lag luam fais fab mov hauv av davhlau ya nyob twg, ua suab nrov yuav ncaj qha nkag mus rau lub rooj tsavxwm raws li hom suab nrov, uas tuaj yeem ua suab nrov hauv CTSU ntsuas qhov tshwm sim thaum lub pob yog kov.

Daim duab 2-1 qhia txog Txoj Kev Sib Nrauj Noise Nkag Nkag thiab Daim duab 2-2 qhia txog kev sib raug zoo ntawm Hom Hom Suab nrov thiab ntsuas tam sim no. Los ntawm lub rooj tsavxwm GND (B-GND) foundations, hom suab nrov zoo nkaus li hloov pauv raws li lub suab nrov nyob rau hauv lub ntiaj teb GND (E-GND). Tsis tas li ntawd, vim hais tias tus ntiv tes (tib neeg lub cev) uas kov lub kov electrode (PAD) yog ua ke rau E-GND vim tsis muaj zog capacitance, hom suab nrov yog kis tau thiab zoo li hloov pauv raws li E-GND. Yog tias PAD raug kov ntawm lub sijhawm no, lub suab nrov (VNOISE) tsim los ntawm cov suab nrov nrov yog siv rau lub peev xwm Cf tsim los ntawm tus ntiv tes thiab PAD, ua rau cov nqi them tam sim no ntsuas los ntawm CTSU hloov pauv. Cov kev hloov pauv hauv cov nqi them tam sim no tshwm sim raws li cov txiaj ntsig digital nrog lub suab nrov superimposed. Yog hais tias lub suab nrov hom muaj xws li cov khoom siv zaus uas phim cov tsav mem tes zaus ntawm CTSU thiab nws cov kev sib haum xeeb, cov txiaj ntsig kev ntsuas yuav hloov pauv ntau. Table 2-5 muab cov npe ntawm cov kev tiv thaiv uas xav tau los txhim kho RF suab tiv thaiv. Feem ntau cov tshuaj tiv thaiv yog ib qho kev txhim kho ntawm ob qho tib si radiated tiv thaiv kab mob thiab kev tiv thaiv kab mob. Thov xa mus rau ntu ntawm txhua tshooj uas tau teev tseg rau txhua kauj ruam kev txhim kho.

Table 2-5 Daim ntawv teev cov kev ntsuas uas yuav tsum tau muaj rau RF Noise Immunity Improvements

Kauj ruam kev txhim kho	Countermeasures yuav tsum tau thaum lub sij hawm tsim	Cov ntu sib xws
MCU xaiv (CTSU muaj nuj nqi xaiv)	Siv MCU embedded nrog CTSU2 yog pom zoo thaum lub suab nrov tiv thaiv yog qhov tseem ceeb. · Pab kom CTSU2 tiv thaiv lub suab nrov tiv thaiv kev ua haujlwm: ¾ Kev ntsuas ntau zaus ¾ Cov ntaub thaiv npog ¾ Teem kom tsis ntsuas cov channel tso tawm thaum siv cov ntaub thaiv npog Or · Pab kom CTSU tiv thaiv lub suab nrov tiv thaiv kev ua haujlwm: ¾ Random theem hloov ua haujlwm ¾ High-frequency suab nrov txo kev ua haujlwm	3.3.1 Kev ntsuas ntau zaus 3.3.2 Active Shield 3.3.3 Tsis ntsuas Channel Kev xaiv tso zis 3.2.1 Random Phase ua haujlwm ua haujlwm 3.2.2 Lub suab nrov nrov Txo Function (hloov spectrum muaj nuj nqi)
Kev Kho Vajtse Tsim	· Board tsim siv cov qauv electrode pom zoo · Siv cov khoom siv hluav taws xob kom muaj suab nrov tsawg · GND qauv tsim kev pom zoo: nyob rau hauv ib lub hauv paus system siv qhov chaw rau ib hom suab nrov countermeasure · Txo cov suab nrov infiltration ntawm tus pin sensor los ntawm kev kho cov dampntawm tus nqi resistor. · Qhov chaw dampnyob rau hauv resistor ntawm kev sib txuas lus kab · Tsim thiab tso cov capacitator tsim nyog ntawm MCU fais fab mov kab	4.1.1 Kov Electrode Qauv Tsim 4.1.2.1 Voltage Supply Design 4.1.2.2 GND Qauv Tsim 4.3.1 Hom Lim Lim 4.3.4 Kev txiav txim siab rau GND Shield thiab Electrode Distance 4.2.1 TS Pin Damphauv Kev tiv thaiv 4.2.2 Digital Signal Noise 4.3.4 Kev txiav txim siab rau GND Shield thiab Electrode Distance
Kev siv software	Kho cov software lim kom txo cov suab nrov ntawm cov nqi ntsuas · IIR txav nruab nrab (zoo rau feem ntau cov suab nrov nrov) · FIR txav nruab nrab (rau lub suab nrov raws sijhawm)	5.1 IIR Lim 5.2 FIR Lim

ESD suab nrov (electrostatic paug)

Electrostatic paug (ESD) yog tsim los thaum ob yam khoom raug them los yog nyob ze. Cov hluav taws xob zoo li qub hauv tib neeg lub cev tuaj yeem ncav cuag electrodes ntawm lub cuab yeej txawm tias dhau los ntawm kev sib tshooj. Nyob ntawm seb cov hluav taws xob hluav taws xob siv hluav taws xob siv hluav taws xob li cas, CTSU ntsuas cov txiaj ntsig yuav raug cuam tshuam, ua rau muaj kev puas tsuaj rau lub cuab yeej nws tus kheej. Yog li ntawd, kev tiv thaiv yuav tsum tau qhia nyob rau hauv theem system, xws li cov cuab yeej tiv thaiv ntawm lub rooj tsav xwm Circuit Court, board overlays, thiab kev tiv thaiv vaj tse rau lub cuab yeej. IEC 61000-4-2 tus qauv yog siv los ntsuas ESD kev tiv thaiv. Table 2-6 muab cov ntaub ntawv xeem ESD. Lub hom phiaj daim ntawv thov thiab cov khoom ntawm cov khoom yuav txiav txim siab qhov kev xeem yuav tsum tau ua. Yog xav paub ntxiv, xa mus rau IEC 61000-4-2 tus qauv. Thaum ESD ncav cuag qhov kov electrode, nws instantaneously generates ib tug muaj peev xwm sib txawv ntawm ob peb kV. Qhov no tuaj yeem ua rau lub suab nrov ntawm lub plawv yuav tshwm sim hauv CTSU ntsuas tus nqi, txo qhov ntsuas qhov tseeb, lossis tuaj yeem nres qhov ntsuas vim qhov kev tshawb pom ntawm overvol.tage los yog overcurrent. Nco ntsoov tias cov khoom siv semiconductor tsis yog tsim los tiv thaiv kev thov ncaj qha ntawm ESD. Yog li ntawd, qhov kev xeem ESD yuav tsum tau ua ntawm cov khoom tiav nrog lub rooj tsav xwm tiv thaiv los ntawm cov khoom siv. Countermeasures qhia nyob rau hauv lub rooj tsavxwm nws tus kheej yog tsis muaj kev ruaj ntseg ntsuas los tiv thaiv Circuit Court nyob rau hauv cov ntaub ntawv tsis tshua muaj ESD ua, rau qee yam, nkag mus rau hauv lub rooj tsavxwm.

Table 2-6 ESD Test

Qib Kuaj	Xeem Voltage
Qib Kuaj	Hu rau Discharge	Cua tso tawm
1	2kv ua	2kv ua
2	4kv ua	4kv ua
3	6kv ua	8kv ua
4	8kv ua	15kv ua
X	Qhia rau tus kheej	Qhia rau tus kheej

EFT Suab nrov (Electrical Fast Transients)
Cov khoom siv hluav taws xob tsim muaj qhov tshwm sim hu ua Electrical Fast Transients (EFT), xws li lub zog hluav taws xob rov qab thaum lub zog hloov pauv vim yog kev teeb tsa sab hauv ntawm cov khoom siv hluav taws xob lossis cov suab nrov ntawm kev hloov pauv. Nyob rau hauv ib puag ncig uas muaj ntau yam khoom siv hluav taws xob txuas nrog qee txoj hauv kev, xws li ntawm cov khoom siv hluav taws xob, lub suab nrov no tuaj yeem hla cov kab hluav taws xob thiab cuam tshuam rau kev ua haujlwm ntawm lwm yam khoom siv. Txawm tias cov kab hluav taws xob thiab cov kab teeb liab ntawm cov khoom siv hluav taws xob uas tsis txuas rau hauv ib qho kev sib koom siv hluav taws xob tuaj yeem cuam tshuam los ntawm huab cua tsuas yog nyob ze cov kab hluav taws xob lossis cov kab teeb liab ntawm lub suab nrov. IEC 61000-4-4 tus qauv yog siv los kuaj EFT kev tiv thaiv. IEC 61000-4-4 ntsuas kev tiv thaiv kab mob los ntawm kev txhaj tshuaj EFT raws sijhawm rau hauv EUT lub zog thiab cov kab teeb liab. Lub suab nrov EFT ua rau lub sijhawm luv luv hauv CTSU ntsuas cov txiaj ntsig, uas tuaj yeem txo qhov tseeb ntawm cov txiaj ntsig lossis ua rau pom tsis tseeb kov. Table 2-7 muab EFT/B (Electrical Fast Transient Burst) cov ntsiab lus xeem.

Table 2-7 EFT/B Test

Qib Kuaj	Qhib Circuit Test Voltage (peak)		Pulse repetition zaus (PRF)
Qib Kuaj	Fais fab mov Kab / av hlau	Teeb liab / Tswj Kab	Pulse repetition zaus (PRF)
1	0.5kv ua	0.25kv ua	5kHz lossis 100kHz
2	1kv ua	0.5kv ua
3	2kv ua	1kv ua
4	4kv ua	2kv ua
X	Qhia rau tus kheej		Qhia rau tus kheej

CTSU Noise Countermeasure Functions

CTSUs tau nruab nrog lub suab nrov tiv thaiv kev ua haujlwm, tab sis qhov muaj ntawm txhua qhov haujlwm txawv nyob ntawm qhov version ntawm MCU thiab CTSU koj siv. Ib txwm lees paub MCU thiab CTSU versions ua ntej tsim cov khoom tshiab. Tshooj lus no piav qhia txog qhov sib txawv ntawm kev ntsuas suab nrov ntawm txhua qhov CTSU version.

Kev Ntsuas Cov Ntsiab Cai thiab Cov nyhuv ntawm lub suab nrov
CTSU rov them thiab tso tawm ntau zaus rau txhua lub voj voog ntsuas. Cov txiaj ntsig kev ntsuas rau txhua tus nqi lossis qhov tso tawm tam sim no tau sau tseg thiab qhov kev ntsuas zaum kawg tau muab khaws cia rau hauv daim ntawv teev npe. Nyob rau hauv txoj kev no, tus naj npawb ntawm kev ntsuas ib chav tsev lub sij hawm tuaj yeem nce ntxiv los ntawm kev ua kom lub zog ntawm cov mem tes zaus, yog li txhim kho qhov dynamic range (DR) thiab paub txog kev ntsuas CTSU siab heev. Ntawm qhov tod tes, lub suab nrov sab nraud ua rau muaj kev hloov pauv ntawm cov nqi lossis qhov tso tawm tam sim no. Nyob rau hauv ib puag ncig uas muaj suab nrov tsis tu ncua, qhov ntsuas tau khaws cia rau hauv Sensor Counter Register yog offset vim qhov nce lossis txo cov nqi tam sim no hauv ib qho kev taw qhia. Xws li cov suab nrov cuam tshuam thaum kawg txo qhov ntsuas qhov tseeb. Daim duab 3-1 qhia txog cov duab ntawm qhov yuam kev tam sim no vim lub suab nrov tsis tu ncua. Cov frequencies uas ua rau lub suab nrov yog cov uas phim lub sensor tsav mem tes zaus thiab nws cov suab nrov harmonic. Kev ntsuas qhov yuam kev ntau dua thaum qhov nce lossis poob ntawm lub suab nrov yog synchronized nrog lub sijhawm SW1 ON. Lub CTSU tau nruab nrog kho vajtse-theem suab nrov tiv thaiv kev ua haujlwm raws li kev tiv thaiv lub suab nrov no.

TSI 1
CTSU1 yog txawm peem rau nrog ib tug random theem ua hauj lwm muaj nuj nqi thiab ib tug high-frequency suab nrov txo muaj nuj nqi (hloov spectrum muaj nuj nqi). Cov txiaj ntsig ntawm qhov ntsuas tus nqi tuaj yeem txo qis thaum lub hauv paus harmonics ntawm lub sensor tsav mem tes zaus thiab lub suab nrov sib tw. Qhov siab tshaj plaws tus nqi ntawm lub sensor tsav mem tes zaus yog 4.0MHz.

Random Phase ua haujlwm ua haujlwm
Daim duab 3-2 qhia cov duab ntawm lub suab nrov desynchronization siv lub random theem ua haujlwm. Los ntawm kev hloov cov theem ntawm lub sensor tsav mem tes los ntawm 180 degrees ntawm random lub sij hawm, lub unidirectional nce / txo nyob rau hauv tam sim no vim lub sij hawm lub suab nrov yuav randomized thiab smoothed los txhim kho kev ntsuas qhov tseeb. Qhov kev ua haujlwm no ib txwm qhib rau hauv CTSU module thiab KOV module.

High-frequency Noise Reduction Function (spread spectrum function)
Lub suab nrov ntau zaus txo cov haujlwm ntsuas lub sensor tsav mem tes zaus nrog txhob txwm ntxiv chattering. Nws ces randomizes lub synchronization taw tes nrog lub suab synchronous disperse lub ncov ntawm qhov ntsuas qhov yuam kev thiab txhim kho kev ntsuas qhov tseeb. Qhov kev ua haujlwm no yeej ib txwm qhib rau hauv CTSU module tso zis thiab KOV module tso tawm los ntawm cov cim cim.

TSI 2

Kev ntsuas ntau zaus
Kev ntsuas ntau zaus siv ntau lub sensor tsav mem tes zaus nrog ntau zaus sib txawv. Kev sib kis spectrum tsis yog siv los tiv thaiv kev cuam tshuam ntawm txhua qhov tsav mem tes zaus. Qhov kev ua haujlwm no txhim kho kev tiv thaiv kev tiv thaiv kev ua thiab hluav taws xob RF suab nrov vim tias nws muaj txiaj ntsig zoo tiv thaiv lub suab nrov ntawm lub sensor tsav mem tes zaus, nrog rau lub suab nrov los ntawm cov qauv kov electrode. Daim duab 3-3 qhia ib daim duab ntawm qhov ntsuas qhov ntsuas tau xaiv li cas hauv kev ntsuas ntau zaus, thiab daim duab 3-4 qhia cov duab ntawm kev sib cais suab nrov zaus hauv tib txoj kev ntsuas. Kev ntsuas ntau zaus muab pov tseg qhov ntsuas qhov ntsuas cuam tshuam los ntawm lub suab nrov los ntawm pab pawg ntsuas ntsuas ntawm ntau zaus los txhim kho kev ntsuas qhov tseeb.

Hauv daim ntawv thov cov haujlwm uas suav nrog CTSU tus tsav tsheb thiab KOV nruab nrab cov khoom siv (saib rau FSP, FIT, lossis SIS cov ntaub ntawv), thaum lub sijhawm "QE rau Capacitive Touch" tau ua tiav qhov tsis muaj qhov ntsuas ntau zaus tau txiav tawm, thiab ntau- Kev ntsuas zaus tuaj yeem siv tau. Los ntawm kev ua kom cov kev teeb tsa siab tshaj plaws nyob rau hauv lub sijhawm tuning, cov tsis tuaj yeem raug teeb tsa manually. Rau cov ntsiab lus hais txog kev ntsuas qib siab ntau lub moos ntsuas, xa mus rau Capacitive Touch Advanced Mode Parameter Guide (R30AN0428EJ0100). Daim duab 3-5 qhia ib qho example of Interference Frequency on Multi-frequency Measurement. Qhov no example qhia qhov cuam tshuam zaus uas tshwm sim thaum qhov ntsuas zaus tau teeb tsa rau 1MHz thiab cov suab nrov ntawm hom kev siv hluav taws xob tau siv rau lub rooj tsavxwm thaum kov electrode. Graph (a) qhia qhov chaw tam sim tom qab nws pib kho; Qhov ntsuas zaus yog teem rau + 12.5% rau 2nd zaus thiab -12.5% rau 3rd zaus raws li 1 zaus ntawm 1MHz. Daim duab qhia tias txhua qhov kev ntsuas zaus cuam tshuam nrog lub suab nrov. Graph (b) qhia tus example nyob rau hauv uas qhov ntsuas zaus yog manually tuned; Qhov ntsuas zaus yog teem rau -20.3% rau 2nd zaus thiab +9.4% rau 3rd zaus raws li 1 zaus ntawm 1MHz. Yog hais tias ib lub suab nrov nrov tshwm nyob rau hauv qhov ntsuas tau thiab lub suab nrov sib tw nrog qhov ntsuas zaus, xyuas kom koj kho qhov kev ntsuas ntau zaus thaum ntsuas qhov tseeb ib puag ncig kom tsis txhob cuam tshuam ntawm lub suab nrov zaus thiab qhov ntsuas zaus.

Active Shield
Nyob rau hauv CTSU2 tus kheej-capacitance txoj kev, ib tug active shield yuav siv tau los tsav cov ntaub thaiv npog qauv nyob rau hauv tib lub pulse theem raws li lub sensor tsav mem tes. Txhawm rau ua kom muaj cov ntaub thaiv npog, hauv QE rau Capacitive Touch interface teeb tsa, teeb tsa tus pin uas txuas mus rau cov qauv ntaub thaiv npog rau "cov ntaub thaiv npog." Cov ntaub thaiv npog tuaj yeem raug teeb tsa rau ib tus pin rau Touch interface configuration (txoj kev). Rau kev piav qhia ntawm kev ua haujlwm ntawm Active Shield, xa mus rau "Capacitive Touch Tus neeg siv phau ntawv qhia rau Capacitive Sensor MCUs (R30AN0424)”. Rau cov ntaub ntawv tsim PCB, xa mus rau "CTSU Capacitive Kov Electrode Design Guide (R30AN0389)".

Tsis ntsuas Channel tso zis xaiv
Nyob rau hauv CTSU2 tus kheej-capacitance txoj kev, mem tes tso zis nyob rau hauv tib theem raws li lub sensor tsav mem tes yuav teem raws li qhov tsis ntsuas channel tso zis. Nyob rau hauv QE rau Capacitive Touch interface configuration (txoj kev), cov tsis ntsuas raws (kov electrodes) tau cia li teem rau tib theem pulse tso zis rau txoj kev muab nrog active shielding.

Hardware Noise Countermeasures

Hom Noise Countermeasures

Kov Electrode Pattern Designs
Qhov kov electrode Circuit Court yog qhov cuam tshuam rau lub suab nrov, yuav tsum muaj kev tiv thaiv suab nrov los txiav txim siab ntawm cov khoom siv kho vajtse stage. Rau cov ncauj lus kom ntxaws board tsim cov cai uas tiv thaiv lub suab nrov tiv thaiv, thov mus saib qhov tseeb version ntawm lub CTSU Capacitive Kov Electrode Design Guide (R30AN0389). Daim duab 4-1 muab ib qho excerpt los ntawm Phau Ntawv Qhia uas qhia ib qho dhauview ntawm tus kheej-capacitance qauv qauv tsim, thiab daim duab 4-2 qhia tib yam rau kev sib nrig sib-capacitance qauv qauv tsim.

Electrode puab: square los yog lub voj voog
Electrode loj: 10mm txog 15mm
Electrode ze ze: electrodes yuav tsum muab tso rau ntawm ample nrug kom lawv tsis txhob hnov qab ib txhij rau tib neeg lub hom phiaj, (hu ua "ntiv tes" hauv daim ntawv no); Lub sijhawm pom zoo: khawm loj x 0.8 lossis ntau dua

Hlau dav: approx. 0.15mm txog 0.20mm rau cov ntawv luam tawm
Kev xaim ntev: Ua kom cov xaim luv li sai tau. Ntawm cov ces kaum, tsim lub kaum sab xis 45, tsis yog lub kaum sab xis.
Kev sib txuas ntawm cov kab hluav taws xob: (A) Ua qhov sib txawv kom dav li ntau tau los tiv thaiv qhov tsis tseeb los ntawm cov electrodes nyob sib ze. (B) 1.27mm suab

Hla-hatched GND qauv dav: 5mm
Hla-hatched GND qauv thiab khawm / thaiv qhov sib nrug (A) thaj tsam nyob ib puag ncig electrodes: 5mm (B) thaj chaw nyob ib puag ncig ntawm cov xov hlau: 3mm lossis ntau dua ntawm thaj chaw electrode nrog rau cov xaim thiab qhov sib txawv nrog cov qauv ntoo khaub lig. Tsis tas li ntawd, tso tus qauv ntoo khaub lig hauv qhov chaw khoob, thiab txuas rau 2 qhov chaw ntawm tus ntoo khaub lig-hatched qauv los ntawm vias. Xa mus rau ntu "2.5 Anti-Noise Layout Pattern Designs" rau qhov sib txawv ntawm qhov sib txawv, cov ntaub thaiv npog (CTSU2 nkaus xwb), thiab lwm yam kev tiv thaiv suab nrov.
Electrode + thaiv kab hluav taws xob: 50pF lossis tsawg dua

Electrode + thaiv kev tiv thaiv: 2K0 lossis tsawg dua (xws li damping resistor nrog tus nqi siv ntawm 5600)

Daim duab 4-1 Tus Qauv Tsim Cov Lus Pom Zoo rau Kev Siv Tus Kheej Tus Kheej (excerpt)

Electrode puab: square (combined transmitter electrode TX thiab receiver electrode RX)

Electrode loj: 10mm lossis loj dua Electrode sib thooj: Electrodes yuav tsum muab tso rau ntawm ample nrug kom lawv tsis txhob hnov qab ib txhij rau cov khoom kov (ntiv tes, thiab lwm yam), (lub sijhawm qhia: khawm loj x 0.8 lossis ntau dua)
- Hlau dav: Lub thinnest hlau muaj peev xwm los ntawm ntau lawm; kwv yees. 0.15mm txog 0.20mm rau cov ntawv luam tawm
Kev xaim ntev: Ua kom cov xaim luv li sai tau. Ntawm cov ces kaum, tsim lub kaum sab xis 45, tsis yog lub kaum sab xis.

Kab sib nrug:
- Ua kom qhov sib txawv kom dav li sai tau los tiv thaiv kev tshawb pom tsis tseeb los ntawm cov electrodes nyob sib ze.
- Thaum cov electrodes sib cais: 1.27mm suab
- 20mm los yog ntau tshaj los tiv thaiv kev sib txuas ntawm cov khoom siv hluav taws xob ntawm Tx thiab Rx.
Hla-hatched GND qauv (cov ntaub thaiv npog) qhov sib thooj Vim tias tus pin parasitic capacitance nyob rau hauv cov qauv khawm pom zoo yog qhov sib piv me me, parasitic capacitance nce lub pins ze rau GND.
- A: 4mm los yog ntau tshaj nyob ib ncig ntawm electrodes Peb kuj pom zoo approx. 2-mm dav cross-hatched GND dav hlau qauv ntawm electrodes.
- B: 1.27mm los yog ntau tshaj nyob ib ncig ntawm cov hlau
Tx, Rx parasitic capacitance: 20pF los yog tsawg dua
Electrode + thaiv kev tiv thaiv: 2kQ lossis tsawg dua (xws li damping resistor nrog tus nqi siv ntawm 5600)

Tsis txhob tso tus qauv GND ncaj qha rau hauv cov electrodes lossis thaiv. Lub active shield muaj nuj nqi tsis tuaj yeem siv rau txoj kev sib nrig-capacitance.

Daim duab 4-2 Pattern Design Recommendations for Mutual Capacitance Method (excerpt)

Fais Fab Tsim
Lub CTSU yog ib qho analog peripheral module uas tswj cov teeb liab hluav taws xob feeb. Thaum lub suab infiltrates lub voltage muab rau MCU lossis GND qauv, nws ua rau muaj peev xwm hloov pauv hauv lub sensor tsav mem tes thiab txo qhov ntsuas qhov tseeb. Peb xav kom ntxiv cov khoom siv suab nrov rau cov kab hluav taws xob lossis lub zog hluav taws xob hauv hluav taws xob kom muaj kev nyab xeeb rau lub zog rau MCU.

Voltage Supply Design
Kev nqis tes ua yuav tsum tau ua thaum tsim cov khoom siv hluav taws xob rau lub cev lossis cov khoom siv hauv lub nkoj kom tsis txhob muaj suab nrov infiltration ntawm MCU fais fab mov tus pin. Cov lus qhia txog kev tsim qauv hauv qab no tuaj yeem pab tiv thaiv cov suab nrov infiltration.

Khaws cov khoom siv hluav taws xob rau lub cev thiab cov xaim sab hauv kom luv li sai tau kom txo qis impedance.
Tso thiab ntxig lub suab nrov (ferrite core, ferrite hlaws, thiab lwm yam) los thaiv cov suab nrov nrov.

Txo qhov ripple ntawm MCU fais fab mov. Peb pom zoo kom siv cov kab hluav taws xob regulator ntawm MCU's voltage muab. Xaiv ib tug linear regulator nrog cov suab nrov qis thiab siab PSRR yam ntxwv.
Thaum muaj ntau yam khoom siv nrog cov khoom siv siab tam sim no ntawm lub rooj tsavxwm, peb pom zoo kom muab lub zog sib cais rau MCU. Yog tias qhov no ua tsis tau, cais cov qauv ntawm lub hauv paus ntawm lub hwj huam mov.
Thaum khiav lub cuab yeej nrog kev noj tam sim no ntawm MCU tus pin, siv lub transistor lossis FET.

Daim duab 4-3 qhia ntau qhov kev teeb tsa rau cov kab hluav taws xob. Vo yog lub zog mov voltage, nws yog qhov kev hloov pauv tam sim no uas tshwm sim los ntawm kev ua haujlwm IC2, thiab Z yog lub zog hluav taws xob kab impedance. Vn yog voltage generated los ntawm lub hwj huam mov kab thiab yuav xam raws li Vn = nyob rau hauv × Z. Tus qauv GND tuaj yeem suav nrog tib txoj kev. Yog xav paub ntxiv txog tus qauv GND, xa mus rau 4.1.2.2 GND Pattern Design. Hauv kev teeb tsa (a), cov kab hluav taws xob xa mus rau MCU ntev, thiab IC2 cov kab xa khoom tuaj ze ntawm MCU lub zog hluav taws xob. Qhov kev teeb tsa no tsis pom zoo raws li MCU's voltage mov yog raug rau Vn suab nrov thaum IC2 ua haujlwm. (b) thiab (c) daim duab kos duab ntawm (b) thiab (c) yog tib yam li (a), tab sis cov qauv tsim txawv. (b) ceg ntawm cov kab hluav taws xob los ntawm lub hauv paus ntawm cov khoom siv hluav taws xob, thiab cov nyhuv ntawm Vn suab nrov yog txo los ntawm kev txo qis Z ntawm cov khoom siv hluav taws xob thiab MCU. (c) kuj txo qhov cuam tshuam ntawm Vn los ntawm kev ua kom cov cheeb tsam saum npoo thiab kab dav ntawm cov kab hluav taws xob kom txo qis Z.

GND Qauv Tsim
Nyob ntawm tus qauv tsim, suab nrov tuaj yeem ua rau GND, uas yog qhov siv voltage rau MCU thiab onboard cov cuab yeej, kom hloov pauv hauv qhov muaj peev xwm, txo CTSU ntsuas qhov tseeb. Cov lus qhia hauv qab no rau GND tus qauv tsim yuav pab txo qis qhov muaj peev xwm hloov pauv.

Npog qhov chaw khoob nrog cov qauv GND kom ntau li ntau tau kom txo qis impedance hla thaj chaw loj.
Siv lub rooj tsav xwm txheej txheem uas tiv thaiv lub suab nrov los ntawm kev nkag mus rau MCU ntawm kab GND los ntawm kev nce qhov kev ncua deb ntawm MCU thiab cov khoom siv nrog cov khoom siv siab tam sim no thiab cais MCU los ntawm GND qauv.

Daim duab 4-4 qhia ob peb layouts rau GND kab. Hauv qhov no, nws yog qhov kev hloov pauv tam sim no uas tshwm sim los ntawm kev ua haujlwm IC2, thiab Z yog lub zog hluav taws xob kab impedance. Vn yog voltage tsim los ntawm GND kab thiab tuaj yeem suav ua Vn = hauv × Z. Hauv kev teeb tsa (a), GND kab rau MCU ntev thiab sib koom nrog IC2 GND kab ze ntawm MCU's GND tus pin. Qhov kev teeb tsa no tsis pom zoo vim tias MCU's GND muaj peev xwm raug cuam tshuam rau Vn suab nrov thaum IC2 ua haujlwm. Hauv kev teeb tsa (b) GND kab sib koom ua ke ntawm lub hauv paus ntawm lub hwj chim mov GND tus pin. Lub suab nrov los ntawm Vn tuaj yeem raug txo los ntawm kev sib cais ntawm GND kab ntawm MCU thiab IC2 kom txo qhov chaw ntawm MCU thiab Z. Txawm hais tias daim duab kos duab ntawm (c) thiab (a) yog tib yam, cov qauv tsim txawv. Configuration (c) txo cov nyhuv ntawm Vn los ntawm kev ua kom qhov chaw saum npoo thiab kab dav ntawm GND kab kom txo qis Z.

Txuas lub TSCAP capacitor's GND mus rau GND khoom qauv uas txuas nrog MCU's VSS davhlau ya nyob twg kom nws muaj peev xwm zoo ib yam li VSS davhlau ya nyob twg. Tsis txhob cais TSCAP capacitor's GND los ntawm MCU's GND. Yog tias qhov impedance ntawm TSCAP capacitor's GND thiab MCU's GND yog siab, lub suab nrov nrov tsis kam lees qhov kev ua tau zoo ntawm TSCAP capacitor yuav txo qis, ua rau nws muaj kev cuam tshuam rau lub zog hluav taws xob thiab suab nrov sab nraud.

Kev ua cov Pins tsis siv
Tso cov pins uas tsis siv rau hauv lub xeev siab impedance ua rau lub cuab yeej raug cuam tshuam los ntawm cov suab nrov sab nraud. Nco ntsoov tias koj ua txhua tus pins tsis siv tom qab xa mus rau MCU Faily hardware phau ntawv ntawm txhua tus pin. Yog hais tias lub pulldown resistor tsis tuaj yeem siv tau vim tsis muaj qhov chaw mounting, kho tus pin tso zis qhov chaw rau cov zis qis.

Radiated RF Noise Countermeasures

TS Pin Dampnyob rau hauv Resistance
Cov damping resistor txuas nrog TS tus pin thiab electrode tus kab mob parasitic capacitance tivthaiv muaj nuj nqi raws li cov lim dej qis. Kev nce qib damping resistor txo qis qhov kev txiav tawm zaus, yog li txo qis ntawm cov suab nrov radiated infiltrating TS tus pin. Txawm li cas los xij, thaum lub sijhawm ntsuas kev ntsuas capacitive lossis lub sijhawm tso tawm tam sim no ntev, lub sensor tsav mem tes zaus yuav tsum tau qis dua, uas tseem txo qis qhov ntsuas qhov tseeb. Rau cov ntaub ntawv hais txog rhiab heev thaum hloov damping resistor nyob rau hauv tus kheej-capacitance txoj kev, xa mus rau "5. Self-capacitance Method Button Patterns and Characteristics Data" nyob rau hauv CTSU Capacitive Kov Electrode Design Guide (R30AN0389)

Digital Signal Noise
Cov teeb liab xaim hluav taws xob uas tswj xyuas kev sib txuas lus, xws li SPI thiab I2C, thiab PWM cov teeb liab rau LED thiab lub suab tso tawm yog lub hauv paus ntawm lub suab nrov uas cuam tshuam rau qhov kov electrode circuit. Thaum siv cov cim digital, xav txog cov lus qhia hauv qab no thaum lub sijhawm tsim stage.

Thaum cov xaim muaj xws li lub kaum sab xis (90 degrees), lub suab nrov ntawm cov ntsiab lus ntse tshaj plaws yuav nce ntxiv. Xyuas kom cov kab hlau txuas yog 45 degrees lossis tsawg dua, lossis nkhaus, kom txo cov suab nrov nrov.

Thaum cov theem teeb liab hloov pauv, qhov overshoot lossis undershoot yog radiated raws li lub suab nrov. Raws li kev ntsuas, ntxig adamping resistor nyob rau hauv cov teeb liab kab los suppress lub overshoot los yog undershoot. Lwm txoj hauv kev yog ntxig cov hlaws ferrite raws kab.
Layout cov kab rau digital signals thiab kov electrode circuit kom lawv tsis txhob kov. Yog tias qhov kev teeb tsa xav kom cov kab khiav mus rau qhov sib npaug, khaws kom deb li deb ntawm lawv ntau npaum li qhov ua tau thiab ntxig GND ntaub thaiv npog raws cov kab digital.
Thaum khiav lub cuab yeej nrog kev noj tam sim no ntawm MCU tus pin, siv lub transistor lossis FET.

Kev ntsuas ntau zaus
Thaum siv MCU embedded nrog CTSU2, nco ntsoov siv ntau zaus ntsuas. Yog xav paub ntxiv, saib 3.3.1 Kev ntsuas ntau zaus.

Ua Noise Countermeasures
Kev xav txog kev tiv thaiv lub suab nrov yog qhov tseem ceeb hauv kev tsim hluav taws xob tsim hluav taws xob ntau dua li hauv MCU board tsim. Yuav pib nrog, tsim lub hwj huam mov los muab voltage nrog lub suab qis rau cov khoom siv mounted ntawm lub rooj tsavxwm. Yog xav paub meej txog kev teeb tsa hluav taws xob, xa mus rau 4.1.2 Power Supply Design. Tshooj lus no piav qhia txog cov suab nrov tiv thaiv cuam tshuam txog lub zog hluav taws xob nrog rau CTSU cov haujlwm yuav tsum tau txiav txim siab thaum tsim koj lub rooj tsavxwm MCU los txhim kho kev tiv thaiv suab nrov.

Hom Lim Lim
Muab los yog mount ib hom hom lim (hom hom choke, ferrite core) kom txo cov suab nrov nkag mus rau lub rooj tsavxwm los ntawm lub hwj chim cable. Tshawb xyuas lub kaw lus cuam tshuam nrog kev ntsuas suab nrov thiab xaiv lub cuab yeej nrog lub siab impedance kom txo cov suab nrov ntawm lub hom phiaj. Xa mus rau cov khoom raws li qhov chaw teeb tsa sib txawv nyob ntawm seb hom lim. Nco ntsoov tias txhua hom lim tau muab tso rau qhov sib txawv ntawm lub rooj tsavxwm; xa mus rau cov lus piav qhia kom ntxaws. Ib txwm xav txog cov txheej txheem lim kom tsis txhob muaj suab nrov nrov hauv lub rooj tsavxwm. Daim duab 4-5 qhia txog Hom Hom Lim Layout Example.

Hom Hom Choke
Hom hom choke yog siv raws li lub suab nrov countermeasure siv nyob rau hauv lub rooj tsavxwm, yuav tsum tau embedded nyob rau hauv lub board thiab system tsim theem. Thaum siv ib hom kev choke, nco ntsoov siv txoj hlua hluav taws xob luv tshaj tam sim ntawd tom qab lub ntsiab lus uas lub hwj chim txuas nrog lub rooj tsavxwm. Rau example, thaum txuas lub hwj chim cable thiab board nrog ib tug connector, tso lub lim tam sim ntawd tom qab lub connector ntawm lub rooj tsavxwm sab yuav tiv thaiv lub suab nrov nkag los ntawm lub cable los ntawm kis mus rau lub rooj tsavxwm.

Ferrite tub ntxhais
Lub ferrite core yog siv los txo cov suab nrov ntawm lub cable. Thaum lub suab nrov dhau los ua qhov teeb meem tom qab kev sib dhos, qhia txog clamp-type ferrite core tso cai rau koj los txo cov suab nrov yam tsis hloov lub rooj tsavxwm lossis kev tsim qauv. Rau example, thaum txuas lub cable thiab lub rooj tsavxwm nrog lub connector, tso lub lim ua ntej lub connector ntawm lub rooj tsavxwm yuav txo cov suab nrov nkag mus rau lub rooj tsavxwm.

Capacitor Layout
Txo cov suab nrov ntawm cov khoom siv hluav taws xob thiab cov suab nrov nrov uas nkag mus rau hauv lub rooj tsavxwm los ntawm cov khoom siv hluav taws xob thiab cov teeb liab cables los ntawm kev tsim thiab tso cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob ntau nyob ze ntawm MCU fais fab kab lossis cov terminals.

Decoupling capacitor
Lub decoupling capacitor tuaj yeem txo qhov voltage poob ntawm VCC lossis VDD fais fab mov tus pin thiab VSS vim MCU qhov kev siv tam sim no, ua kom ruaj khov CTSU ntsuas. Siv qhov kev pom zoo capacitance teev nyob rau hauv MCU Tus Neeg Siv Phau Ntawv Qhia, tso lub capacitor ze ntawm lub hwj huam mov tus pin thiab VSS tus pin. Lwm qhov kev xaiv yog tsim tus qauv los ntawm kev ua raws li cov qauv tsim kho vajtse rau MCU tsev neeg, yog tias muaj.

Muaj peev xwm Capacitor
Bulk capacitors yuav du ripples hauv MCU's voltage muab qhov chaw, stabilizing lub voltage ntawm MCU lub hwj chim tus pin thiab VSS, thiab yog li stabilizing CTSU ntsuas. Lub capacitance ntawm capacitors yuav txawv nyob ntawm seb lub hwj huam mov tsim; xyuas kom koj siv tus nqi tsim nyog kom tsis txhob tsim oscillation lossis voltage vug.

Kev ntsuas ntau zaus
Kev ntsuas ntau zaus, ua haujlwm ntawm CTSU2, muaj txiaj ntsig zoo hauv kev txhim kho lub suab nrov tiv thaiv. Yog tias kev tiv thaiv lub suab nrov yog ib qho kev txhawj xeeb hauv koj txoj kev loj hlob, xaiv MCU nruab nrog CTSU2 los siv ntau qhov kev ntsuas ntau zaus. Yog xav paub ntxiv, xa mus rau 3.3.1 Kev ntsuas ntau zaus.

Kev txiav txim siab rau GND Shield thiab Electrode Distance
Daim duab 1 qhia cov duab ntawm cov suab nrov uas siv cov suab nrov conduction ntxiv ntawm cov ntaub thaiv npog electrode. Muab GND ntaub thaiv npog nyob ib ncig ntawm lub electrode thiab nqa cov ntaub thaiv npog nyob ib puag ncig cov electrode los ze zog rau cov electrode ntxiv dag zog rau lub capacitive coupling ntawm tus ntiv tes thiab daim ntaub thaiv npog. Lub suab nrov tivthaiv (VNOISE) khiav mus rau B-GND, txo qhov kev hloov pauv hauv CTSU ntsuas tam sim no. Nco ntsoov tias qhov ze ntawm daim ntaub thaiv yog rau cov electrode, qhov loj dua CP, ua rau txo qhov kev hnov mob. Tom qab hloov qhov kev ncua deb ntawm cov ntaub thaiv npog thiab cov electrode, paub meej tias qhov rhiab heev nyob rau hauv ntu 5. Tus kheej-capacitance Method Khawm Cov Qauv thiab Cov Ntaub Ntawv Cov Ntaub Ntawv ntawm CTSU Capacitive Kov Electrode Design Guide (R30AN0389).

Software Lim

Kov kuaj pom siv cov txiaj ntsig ntsuas qhov ntsuas ntsuas los txiav txim seb lub ntsuas puas tau kov lossis tsis tau (ON lossis OFF) siv ob tus tsav tsheb CTSU thiab KOV module software. Lub CTSU module ua lub suab nrov txo ntawm qhov ntsuas qhov ntsuas tau thiab dhau cov ntaub ntawv mus rau KOV module uas txiav txim siab kov. Tus tsav tsheb CTSU suav nrog IIR txav nruab nrab lim raws li tus qauv lim. Feem ntau, tus qauv lim tuaj yeem muab SNR txaus thiab kev ua haujlwm. Txawm li cas los xij, kev ua kom muaj suab nrov ntau dua yuav tsum tau nyob ntawm tus neeg siv qhov system. Daim duab 5-1 qhia cov ntaub ntawv ntws los ntawm kev kuaj pom. Cov neeg siv cov ntxaij lim dej tuaj yeem muab tso rau nruab nrab ntawm CTSU tus tsav tsheb thiab KOUCH module rau kev ua suab nrov. Xa mus rau daim ntawv teev npe hauv qab no rau cov lus qhia ntxaws txog yuav ua li cas koom nrog cov lim dej rau hauv ib qhov project file as well as a software filter sample code and use exampua project file. RA Family Capacitive Touch Software Lim Sample Program (R30AN0427)

Tshooj lus no qhia txog cov lim dej zoo rau txhua tus qauv EMC.

Table 5-1 EMC Standard thiab Cuam Tshuam Software Lim

EMC Txuj Ci	Nco Ntsoov	Cuam tshuam Software Lim
IEC 61000-4-3	Random suab nrov	IIR lim
Radiated tiv thaiv kab mob,
IEC 61000-4-6	Lub suab nrov nrov	FIR lim
Kev tiv thaiv kab mob

IIR Lim
IIR lim (Infinite Impulse Response filter) yuav tsum muaj lub cim xeeb tsawg thiab khav theeb me me, ua rau nws zoo tagnrho rau cov tshuab hluav taws xob qis thiab cov ntawv thov nrog ntau cov nyees khawm. Siv qhov no ua lub lim dej qis yuav pab txo cov suab nrov nrov. Txawm li cas los xij, kev saib xyuas yuav tsum tau ua raws li qhov tsawg dua qhov kev txiav tawm ntau zaus, lub sijhawm ntev dua, uas yuav ncua sij hawm ON / OFF txheej txheem txiav txim. Ib leeg-ncej thawj-txiav IIR lim yog suav nrog cov qauv hauv qab no, qhov twg a thiab b yog coefficients, xn yog tus nqi nkag, yn yog tus nqi tso tawm, thiab yn-1 yog tus nqi tam sim dhau los.

Thaum cov lim IIR siv los ua cov lim dej qis, cov coefficients a thiab b tuaj yeem suav nrog siv cov qauv hauv qab no, qhov twg sampling zaus yog fs thiab qhov txiav tawm zaus yog fc.

FIR Lim
FIR Filter (Finite Impulse Response filter) yog lub lim dej ruaj khov uas ua rau muaj qhov tseeb tsawg kawg nkaus vim qhov kev suav yuam kev. Nyob ntawm tus coefficient, nws tuaj yeem siv los ua cov lim dej qis lossis lim band-pass, txo ob lub suab nrov nrov thiab nrov nrov, yog li txhim kho SNR. Txawm li cas los xij, vim samples los ntawm ib lub sijhawm dhau los tau muab khaws cia thiab suav, kev siv lub cim xeeb thiab kev suav suav yuav nce ntxiv rau qhov sib piv rau lub lim dej ntev. FIR lim yog suav nrog cov qauv hauv qab no, qhov twg L thiab h0 rau hL-1 yog coefficients, xn yog tus nqi nkag, xn-I yog tus nqi nkag ua ntej rau sample i, thiab yn yog tus nqi tso zis.

Kev siv Examples
Ntu no muab examples ntawm kev tshem tawm suab nrov siv IIR thiab FIR lim. Table 5-2 qhia txog cov xwm txheej lim thiab Daim duab 5-2 qhia ib qho example ntawm random suab tshem tawm.

Table 5-2 Lim Siv Examples

Lim hom	Qhov xwm txheej 1	Qhov xwm txheej 2	Lus hais
Ib-ncej thawj-txiav IIR	ib = 0.5	ib = 0.75
FIR	L = 4 h0~ hL-1 = 0.25	L = 8 h0~ hL-1 = 0.125	Siv qhov nruab nrab txav yooj yim

Cov Lus Qhia Siv Txog Kev Ntsuas Lub voj voog
Cov yam ntxwv zaus ntawm cov ntxaij lim dej software hloov pauv nyob ntawm qhov tseeb ntawm lub voj voog ntsuas. Tsis tas li ntawd, koj yuav tsis tau txais cov yam ntxwv lim dej vim muaj kev sib txawv lossis kev hloov pauv hauv lub voj voog ntsuas. Txhawm rau tsom mus rau qhov tseem ceeb ntawm cov yam ntxwv lim dej, siv lub tshuab hluav taws xob ceev ceev (HOCO) lossis lwm lub siv lead ua oscillator ua lub moos tseem ceeb. Peb kuj pom zoo kom tswj kev ntsuas kov ntsuas kev ua haujlwm nrog lub sijhawm kho vajtse.

Glossary

Lub sij hawm	Txhais
CTSU	Capacitive Touch Sensing Unit. Kuj tseem siv tau hauv CTSU1 thiab CTSU2.
TSI 1	Thib ob tiam CTSU IP. "1" ntxiv rau qhov sib txawv ntawm CTSU2.
TSI 2	Thib peb tiam CTSU IP.
CTSU driver	CTSU driver software bundled nyob rau hauv Renesas Software tej pob khoom.
CTSU module	Ib chav tsev ntawm CTSU tus tsav tsheb software uas tuaj yeem kos siv Smart Configurator.
KUB nruab nrab	Cov khoom nruab nrab rau kev ua kom pom kev kov thaum siv CTSU bundled hauv Renesas software pob.
KUB module	Ib chav tsev ntawm KOV cov khoom nruab nrab uas tuaj yeem kos tau siv Smart Configurator.
r_ctsu module	Tus tsav tsheb CTSU tau tshwm sim hauv Smart Configurator.
rm_touch module	KOV module tso tawm hauv Smart Configurator
CCO	Tam sim no Tswj Oscillator. Tam sim no-tswj oscillator yog siv nyob rau hauv capacitive touch sensors. Kuj sau ua ICO hauv qee cov ntaub ntawv.
ICO	Ib yam li CCO.
TSCAP	Lub capacitor rau stabilizing CTSU internal voltage.
Dampnyob rau hauv resistor	Lub resistor yog siv los txo tus pin puas tsuaj los yog cuam tshuam los ntawm cov suab nrov sab nraud. Yog xav paub ntxiv, xa mus rau Capacitive Touch Electrode Design Guide (R30AN0389).
VDC	Voltage Down Converter. Fais fab mov Circuit Court rau capacitive sensor ntsuas ua rau hauv CTSU.
Kev ntsuas ntau zaus	Ib txoj haujlwm uas siv ntau lub ntsuas ntsuas moos nrog ntau zaus ntsuas qhov kov; qhia txog kev ntsuas ntau lub moos.
Sensor tsav mem tes	Lub teeb liab uas tsav lub hloov pauv capacitor.
Synchronous suab nrov	Lub suab nrov ntawm qhov zaus uas phim lub sensor tsav mem tes.
EUT	Khoom Siv Hauv Kev Xeem. Qhia tias lub cuab yeej yuav raug kuaj.
LDO	Low Dropout Regulator
PSRR	Fais fab mov Rejection Ration
FSP	Plexible Software Package
FIT	Firmware Integration Technology.
SIS	Software Integration System

Kev kho keeb kwm

Rev.	Hnub tim	Kev piav qhia
Rev.	Hnub tim	Nplooj	Cov ntsiab lus
1.00	Peb Hlis 31, 2023	–	Thawj zaug kho dua
2.00	Kaum Ob Hlis 25, 2023	–	Rau IEC 61000-4-6
		6	Ntxiv hom suab nrov cuam tshuam rau 2.2
		7	Ntxiv cov khoom rau Table 2-5
		9	Hloov kho cov ntawv hauv 3.1, kho daim duab 3-1
		9	Hloov cov ntawv hauv 3-2
		10	Hauv 3.3.1, hloov cov ntawv nyeem thiab ntxiv daim duab 3-4. Tshem tawm cov lus piav qhia txog kev hloov chaw rau kev ntsuas ntau zaus thiab ntxiv cov lus piav qhia ntawm ntau zaus ntsuas kev cuam tshuam ntau zaus Daim duab 3-5e3-5.
		11	Ntxiv cov ntaub ntawv siv rau 3.2.2
		14	Ntxiv daim ntawv hais txog TSCAP capacitor GND txuas rau 4.1.2.2
		15	Ntxiv daim ntawv hais txog kev xaim kaum tsim rau 4.2.2
		16	Ntxiv 4.3 Kev ntsuas suab nrov
		18	Kho dua ntu 5.

Kev ceev faj dav dav hauv kev tuav ntawm Microprocessing Unit thiab Microcontroller Unit Products

Cov ntawv sau hauv qab no siv rau tag nrho Microprocessing unit thiab Microcontroller unit khoom los ntawm Renesas. Rau cov lus qhia ntxaws ntxaws ntawm cov khoom siv los ntawm cov ntaub ntawv no, xa mus rau cov ntu tseem ceeb ntawm cov ntaub ntawv nrog rau cov kev hloov kho tshiab uas tau tshaj tawm rau cov khoom.

Kev ceev faj tiv thaiv Electrostatic Discharge (ESD)
Ib qho hluav taws xob muaj zog, thaum raug rau lub cuab yeej CMOS, tuaj yeem rhuav tshem lub rooj vag oxide thiab thaum kawg degrade cov cuab yeej ua haujlwm. Cov kauj ruam yuav tsum tau ua kom tsis txhob muaj hluav taws xob zoo li qub kom ntau li ntau tau, thiab sai sai dissipate nws thaum nws tshwm sim. Kev tswj ib puag ncig yuav tsum tsim nyog. Thaum nws qhuav, yuav tsum tau siv lub humidifier. Qhov no tau pom zoo kom tsis txhob siv cov insulators uas tuaj yeem tsim hluav taws xob zoo li qub. Cov khoom siv semiconductor yuav tsum tau khaws cia thiab thauj mus rau hauv lub thawv los tiv thaiv zoo li qub, lub hnab tiv thaiv zoo li qub, lossis cov khoom siv hluav taws xob. Tag nrho cov cuab yeej ntsuas thiab ntsuas suav nrog cov rooj zaum ua haujlwm thiab cov plag tsev yuav tsum yog hauv av. Tus neeg teb xov tooj yuav tsum tau grounded siv lub dab teg. Cov khoom siv semiconductor yuav tsum tsis txhob kov nrog tes liab qab. Cov kev ceev faj zoo sib xws yuav tsum tau ua rau cov ntawv luam tawm Circuit Court nrog cov khoom siv semiconductor mounted.
Processing ntawm lub hwj chim-on
Lub xeev ntawm cov khoom yog undefined thaum lub sij hawm lub hwj chim muab. Cov xeev ntawm cov kab hluav taws xob sab hauv hauv LSI tsis raug txiav txim siab thiab cov xeev ntawm cov chaw sau npe thiab cov pins tsis tau txhais thaum lub sijhawm muab hluav taws xob. Nyob rau hauv ib tug tiav cov khoom uas lub reset teeb liab yog siv rau sab nraud reset pin, lub xeev ntawm pins tsis tau guaranteed los ntawm lub sij hawm thaum lub hwj chim nkag mus txog rau thaum lub reset txheej txheem tiav. Ib yam li ntawd, cov xeev ntawm cov pins nyob rau hauv ib yam khoom uas yog reseted los ntawm ib tug on-chip lub hwj chim-on reset function tsis tau guaranteed los ntawm lub sij hawm thaum lub hwj chim nkag mus txog rau thaum lub hwj chim mus txog rau theem ntawm resetting yog teev.
Input ntawm lub teeb liab thaum lub hwj chim-off xeev
Tsis txhob tso cov teeb liab lossis I / O rub-up fais fab mov thaum lub cuab yeej raug kaw. Kev txhaj tshuaj tam sim no uas tshwm sim los ntawm cov khoom siv ntawm lub teeb liab lossis I / O rub-up fais fab mov tuaj yeem ua rau lub cev tsis ua haujlwm thiab qhov txawv txav tam sim no uas dhau mus rau hauv lub cuab yeej lub sijhawm no yuav ua rau muaj kev puas tsuaj ntawm cov khoom sab hauv. Ua raws li cov lus qhia rau cov teeb liab tawm tswv yim thaum lub zog tawm hauv lub xeev raws li tau piav qhia hauv koj cov ntaub ntawv khoom.

Kev tuav cov pins tsis siv
Kov cov pins tsis siv los ntawm cov lus qhia hauv qab tuav cov pins tsis siv hauv phau ntawv. Cov tswv yim pins ntawm CMOS cov khoom feem ntau yog nyob rau hauv lub xeev siab impedance. Nyob rau hauv kev ua haujlwm nrog tus pin tsis siv nyob rau hauv lub xeev qhib-circuit, lub suab nrov ntxiv electromagnetic yog induced nyob rau hauv ib ncig ntawm lub LSI, ib tug cuam tshuam tua-los ntawm tam sim no ntws nyob rau hauv, thiab malfunctions tshwm sim vim qhov tseeb tsis tseeb ntawm lub xeev tus pin raws li ib tug input teeb liab. ua tau.
Cov cim moos
Tom qab ua ntawv thov rov pib dua, tsuas yog tso cov kab rov pib dua tom qab lub sijhawm ua haujlwm lub sijhawm ua haujlwm ruaj khov. Thaum hloov lub moos teeb liab thaum lub sijhawm ua haujlwm, tos kom txog thaum lub hom phiaj moos teeb liab ruaj khov. Thaum lub moos teeb liab raug tsim nrog lub suab nrov sab nraud lossis los ntawm lub oscillator sab nraud thaum lub sij hawm rov pib dua, xyuas kom meej tias cov kab rov pib dua tsuas yog tso tawm tom qab tag nrho kev ruaj ntseg ntawm lub moos teeb liab. Tsis tas li ntawd, thaum hloov mus rau lub moos teeb liab uas tsim tawm nrog lub suab nrov sab nraud lossis los ntawm lub oscillator sab nraud thaum qhov kev ua tiav hauv kev ua tiav, tos kom txog thaum lub hom phiaj moos teeb liab ruaj khov.
Voltage daim ntawv thov waveform ntawm tus pin input
Waveform distortion vim lub suab nrov input los yog ib tug reflected yoj yuav ua rau malfunction. Yog hais tias lub tswv yim ntawm CMOS ntaus ntawv nyob twj ywm hauv cheeb tsam ntawm VIL (Max.) thiab VIH (Min.) vim suab nrov, rau ex.ample, ntaus ntawv yuav malfunction. Ua tib zoo tiv thaiv kom tsis txhob muaj suab nrov nrov los ntawm kev nkag mus rau hauv lub cuab yeej thaum cov theem nkag tau raug kho, thiab tseem nyob rau lub sijhawm hloov pauv thaum cov theem nkag mus dhau ntawm thaj tsam ntawm VIL (Max.) thiab VIH (Min.).

Kev txwv tsis pub nkag mus rau qhov chaw nyob tshwj tseg
Kev nkag mus rau qhov chaw nyob tshwj tseg raug txwv. Cov chaw nyob tshwj tseg yog muab rau yav tom ntej nthuav dav ntawm kev ua haujlwm. Tsis txhob nkag mus rau cov chaw nyob no vim tias txoj haujlwm raug ntawm LSI tsis tau lees paub.
Qhov sib txawv ntawm cov khoom
Ua ntej hloov ntawm ib yam khoom mus rau lwm tus, rau example, rau ib yam khoom uas muaj tus lej sib txawv, paub meej tias qhov kev hloov pauv yuav tsis ua rau muaj teeb meem. Cov yam ntxwv ntawm micro ua chav tsev lossis microcontroller cov khoom lag luam hauv tib pab pawg tab sis muaj tus lej sib txawv yuav txawv ntawm qhov muaj peev xwm hauv lub cim xeeb, cov qauv tsim, thiab lwm yam, uas tuaj yeem cuam tshuam rau ntau yam ntawm cov yam ntxwv hluav taws xob, xws li cov yam ntxwv muaj nuj nqis. , kev khiav hauj lwm margins, tiv thaiv lub suab nrov, thiab tus nqi ntawm cov suab nrov radiated. Thaum hloov mus rau ib yam khoom uas muaj tus lej sib txawv, ua qhov kev ntsuas kev ntsuas rau cov khoom muab.

Daim ntawv ceeb toom

Cov lus piav qhia ntawm circuits, software, thiab lwm yam ntaub ntawv muaj feem xyuam rau hauv daim ntawv no tsuas yog qhia txog kev ua haujlwm ntawm cov khoom siv semiconductor thiab daim ntawv thov examples. Koj muaj lub luag haujlwm tag nrho rau kev koom ua ke lossis lwm yam kev siv cov circuits, software, thiab cov ntaub ntawv hauv kev tsim ntawm koj cov khoom lossis lub cev. Renesas Electronics tsis lees paub txog kev lav phib xaub rau kev poob thiab kev puas tsuaj uas tshwm sim los ntawm koj lossis cov neeg thib peb uas tshwm sim los ntawm kev siv cov circuits, software, lossis cov ntaub ntawv.
Renesas Electronics ntawm no qhia meej tsis lees paub txog kev lees paub thiab kev lav phib xaub rau kev ua txhaum cai lossis lwm yam kev thov cuam tshuam nrog patents, copyrights, lossis lwm yam kev txawj ntse ntawm peb tog, los ntawm lossis tshwm sim los ntawm kev siv Renesas Electronics cov khoom lossis cov ntaub ntawv qhia txog kev piav qhia hauv daim ntawv no, suav nrog tab sis tsis txwv rau, cov ntaub ntawv khoom, kos duab, kab kos, cov kev pab cuam, algorithms, thiab daim ntawv thov examples.
Tsis muaj daim ntawv tso cai, qhia, hais, lossis lwm yam, tau tso cai ntawm no raws li patents, copyrights, lossis lwm yam cuab yeej cuab tam ntawm Renesas Electronics lossis lwm tus.

Koj yuav tsum yog lub luag haujlwm los txiav txim siab seb daim ntawv tso cai twg yuav tsum tau los ntawm ib tus neeg thib peb, thiab tau txais cov ntawv tso cai no rau kev raug cai ntshuam, xa tawm, tsim khoom, muag, siv, faib, lossis lwm yam pov tseg ntawm cov khoom lag luam suav nrog Renesas Electronics khoom, yog tias xav tau.
Koj yuav tsum tsis txhob hloov pauv, hloov kho, luam tawm, lossis rov qab tus kws ua haujlwm ntawm Renesas Electronics khoom, txawm tias tag nrho lossis ib feem. Renesas Electronics tsis lees paub txog kev lav phib xaub rau kev poob lossis kev puas tsuaj uas tshwm sim los ntawm koj lossis cov neeg thib peb uas tshwm sim los ntawm kev hloov pauv, hloov kho, luam tawm, lossis rov qab engineering.
Renesas Electronics cov khoom raug faib raws li ob qib zoo hauv qab no: "Standard" thiab "High Quality". Cov ntawv thov npaj rau txhua yam khoom lag luam Renesas Electronics nyob ntawm cov khoom qib zoo, raws li qhia hauv qab no.
"Standard": Computers; khoom siv hauv chaw ua haujlwm; khoom siv sib txuas lus; kuaj thiab ntsuas cov cuab yeej; cov khoom siv suab thiab pom; Cov khoom siv hluav taws xob hauv tsev; tshuab cuab yeej; khoom siv hluav taws xob tus kheej; industrial robots; lwm.
"High Quality": Cov khoom siv thauj khoom (tsheb, tsheb ciav hlau, nkoj, thiab lwm yam); tswj kev tsheb (tsheb teeb); cov khoom siv sib txuas lus loj; tseem ceeb nyiaj txiag davhlau ya nyob twg systems; Cov cuab yeej tswj kev nyab xeeb; lwm.
Tshwj tsis yog tias tau hais meej tias yog cov khoom lag luam muaj kev ntseeg siab lossis cov khoom lag luam rau cov cheeb tsam hnyav hauv Renesas Electronics cov ntaub ntawv los yog lwm cov ntaub ntawv Renesas Electronics, Renesas Electronics cov khoom tsis yog npaj los yog tso cai siv rau hauv cov khoom lossis cov tshuab uas yuav ua rau muaj kev hem thawj rau tib neeg lub neej. los yog kev raug mob ntawm lub cev (cov cuab yeej txhawb nqa lub neej lossis cov tshuab; kev cog lus phais; thiab lwm yam) lossis yuav ua rau muaj kev puas tsuaj loj (chaw system; undersea repeaters; nuclear fais fab kev tswj systems; aircraft tswj systems; cov nroj tsuag tseem ceeb; cov khoom siv tub rog; thiab lwm yam). Renesas Electronics tsis lees paub txog kev lav phib xaub rau kev puas tsuaj lossis kev puas tsuaj uas tshwm sim los ntawm koj lossis ib tus neeg thib peb uas tshwm sim los ntawm kev siv cov khoom lag luam Renesas Electronics uas tsis sib haum nrog cov ntaub ntawv Renesas Electronics, tus neeg siv phau ntawv, lossis lwm yam ntaub ntawv Renesas Electronics.

Tsis muaj cov khoom lag luam semiconductor ruaj ntseg. Txawm hais tias muaj kev tiv thaiv kev nyab xeeb lossis cov yam ntxwv uas yuav raug siv hauv Renesas Electronics kho vajtse lossis cov khoom siv software, Renesas Electronics yuav tsum tsis muaj kev lav phib xaub uas tshwm sim los ntawm qhov tsis muaj qhov tsis zoo lossis kev ua txhaum cai lij choj, suav nrog tab sis tsis txwv rau ib qho kev nkag mus tsis raug cai lossis siv cov khoom lag luam Renesas Electronics lossis ib qho system uas siv Renesas Electronics khoom. RENESAS ELECTRONICS tsis lav lossis lav tias RENESAS cov khoom siv hluav taws xob lossis lwm yam txheej txheem tsim los siv RENESAS cov khoom siv hluav taws xob yuav tsis muaj txiaj ntsig lossis tsis pub dawb los ntawm kev lag luam, kev lag luam, kev lag luam FT, LOSSIS Lwm yam kev nyab xeeb nkag mus (“Vulnerability Issues”) . RENESAS ELECTRONICS tsis lees paub txhua yam thiab tag nrho lub luag haujlwm lossis kev lav phib xaub tshwm sim los ntawm lossis cuam tshuam rau txhua yam teeb meem tsis zoo. Tsis tas li ntawd, raws li kev tso cai los ntawm txoj cai lij choj, RENESAS ELECTRONICS tsis lees paub txhua yam thiab txhua qhov kev lav phib xaub, nthuav tawm lossis txhais tau, hais txog cov ntaub ntawv no thiab lwm yam cuam tshuam lossis cuam tshuam nrog kev ua haujlwm, TXOJ HAUJ LWM HAUV CHAW UA HAUJ LWM NTAWM CHAW UA HAUJ LWM, los yog FITNESS rau ib qho tshwj xeeb Lub Hom Phiaj.
Thaum siv cov khoom lag luam Renesas Electronics, xa mus rau cov ntaub ntawv khoom siv tshiab (cov ntaub ntawv nplooj ntawv, cov neeg siv phau ntawv, daim ntawv thov, "Cov Lus Cim rau Kev Siv thiab Siv Cov Khoom Siv Semiconductor" hauv phau ntawv qhia kev ntseeg siab, thiab lwm yam), thiab xyuas kom meej tias cov kev siv nyob rau hauv ntau yam. teev los ntawm Renesas Electronics hais txog qhov siab tshaj plaws, kev khiav hauj lwm fais fab mov voltage ntau yam, cov yam ntxwv ntawm cov cua sov dissipation, kev teeb tsa, thiab lwm yam. Renesas Electronics tsis lees paub txog kev lav phib xaub rau kev ua haujlwm tsis zoo, tsis ua haujlwm, lossis kev sib tsoo tshwm sim los ntawm kev siv Renesas Electronics cov khoom sab nraud ntawm cov kev teev tseg.
Txawm hais tias Renesas Electronics sim txhim kho qhov zoo thiab kev ntseeg siab ntawm Renesas Electronics cov khoom, cov khoom siv semiconductor muaj cov yam ntxwv tshwj xeeb, xws li qhov tshwm sim tsis ua haujlwm ntawm qee tus nqi thiab ua haujlwm tsis zoo nyob rau hauv qee yam kev siv. Tshwj tsis yog raug xaiv los ua cov khoom lag luam muaj kev ntseeg siab lossis cov khoom lag luam rau ib puag ncig hnyav hauv Renesas Electronics cov ntaub ntawv los yog lwm cov ntaub ntawv Renesas Electronics, Renesas Electronics cov khoom tsis raug rau hluav taws xob tiv thaiv tsim. Koj yog lub luag haujlwm rau kev siv cov kev tiv thaiv kev nyab xeeb los tiv thaiv kev raug mob ntawm lub cev, kev raug mob lossis kev puas tsuaj los ntawm hluav taws, thiab / lossis kev phom sij rau pej xeem thaum muaj kev tsis ua hauj lwm lossis kev ua haujlwm tsis zoo ntawm Renesas Electronics cov khoom, xws li kev nyab xeeb tsim rau kho vajtse thiab software, suav nrog tab sis tsis txwv rau kev rov ua dua, kev tswj hluav taws, thiab kev tiv thaiv kev ua haujlwm tsis zoo, kev kho kom tsim nyog rau kev laus degradation lossis lwm yam kev ntsuas tsim nyog. Vim tias qhov kev ntsuam xyuas ntawm microcomputer software ib leeg yog qhov nyuaj heev thiab ua tsis tau zoo, koj yog lub luag haujlwm rau kev ntsuas kev nyab xeeb ntawm cov khoom kawg lossis cov tshuab tsim los ntawm koj.

Thov hu rau lub chaw muag khoom Renesas Electronics kom paub meej txog cov teeb meem ib puag ncig xws li kev sib raug zoo ib puag ncig ntawm txhua Renesas Electronics khoom. Koj muaj lub luag haujlwm ua tib zoo tshawb nrhiav thiab tsim cov kev cai lij choj thiab cov kev cai uas tswj kev suav nrog lossis siv cov tshuaj tswj hwm, suav nrog tsis muaj kev txwv, EU RoHS Cov Lus Qhia, thiab siv Renesas Electronics cov khoom ua raws li tag nrho cov cai thiab cov cai no. Renesas Electronics tsis lees paub qhov kev lav phib xaub rau kev puas tsuaj lossis kev poob uas tshwm sim los ntawm koj qhov tsis ua raws li cov cai thiab cov cai siv.
Renesas Electronics cov khoom lag luam thiab thev naus laus zis yuav tsum tsis txhob siv rau lossis muab tso rau hauv ib qho khoom lossis cov tshuab uas nws tsim, siv, lossis muag raug txwv raws li cov cai hauv tebchaws lossis txawv teb chaws. Koj yuav tsum ua raws li cov cai tswj kev xa tawm thiab cov cai uas tau tshaj tawm thiab tswj hwm los ntawm tsoomfwv ntawm txhua lub tebchaws uas lees paub kev txiav txim siab rau ob tog lossis kev lag luam.
Nws yog lub luag haujlwm ntawm tus neeg yuav khoom lossis tus xa khoom ntawm Renesas Electronics cov khoom, lossis lwm tus neeg uas faib, pov tseg, lossis lwm yam muag lossis hloov cov khoom mus rau lwm tus neeg sab nrauv, ceeb toom rau tus neeg thib peb ua ntej ntawm cov ntsiab lus thiab cov xwm txheej tau teev tseg hauv daim ntawv no.

Cov ntaub ntawv no yuav tsum tsis txhob muab luam tawm, luam tawm, lossis luam tawm hauv ib qho twg, tag nrho lossis ib feem, yam tsis muaj kev tso cai sau ua ntej ntawm Renesas Electronics.
Thov hu rau lub chaw muag khoom Renesas Electronics yog tias koj muaj lus nug txog cov ntaub ntawv muaj nyob hauv daim ntawv no lossis Renesas Electronics cov khoom.

(Nco tseg 1) "Renesas Electronics" raws li siv nyob rau hauv daim ntawv no txhais tau hais tias Renesas Electronics Corporation thiab kuj suav nrog nws ncaj qha lossis tsis ncaj qha tswj cov koom haum.

(Nco tseg 2) "Renesas Electronics product(s)" txhais tau tias txhua yam khoom tsim los yog tsim los ntawm lossis rau Renesas Electronics.

Corporate Lub Tsev Hauv Paus
TOYOSU FORESIA, 3-2-24 Toyosu, Koto-ku, Tokyo 135-0061, Nyiv www.renesas.com

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Renesas thiab Renesas logo yog cov cim lag luam ntawm Renesas Electronics Corporation. Tag nrho cov cim lag luam thiab cov cim lag luam sau npe yog cov cuab yeej ntawm lawv cov tswv.

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