8-Channel AD
Acquisition Module
AN706
User Manual
Chikamu 1: 8-Channel AD Acquisition Module Parameters
- Module VPN: AN706
- AD Chip: AD7606
- Channel: 8-chiteshi
- AD zvidimbu: 16-bit
- Max SampMutengo: 200KSPS
- Chiyamuro Voltage Mutengo: -5V~+5V
- PCB zvikamu zveModule: 4-Layer, yakazvimirira simba layer uye GND layer
- Module Interface: 40-pini 0.1 inch spacing wechikadzi musoro, dhawunirodha nzira
- Ambient Temperature (ine simba rakaiswa: -40 ° ~ 85 °, ese machipisi ari pamodule kusangana nezvinodiwa zveindasitiri.
- Input interface: 8 SMA interfaces uye 16-pini misoro ine 2.54 pitch (Pina Imwe neimwe chiteshi ine yakanaka uye yakaipa maPini maviri)
- Kuyera kwechokwadi: mukati me0.5mV
Chikamu 2: Chimiro chemodule
Mufananidzo 2-1: Iyo 8-chiteshi AD module chimiro
Chikamu 3: AD7606 Chip Nhanganyaya
Iyo AD76061 ndeye 16-bit, panguva imwe chete sampling, analog-to-digital data acquisition systems (DAS) ine masere, matanhatu, uye mana chiteshi, zvichiteerana. Chikamu chimwe nechimwe chine analogi yekupinda clamp dziviriro, yechipiri-order antialiasing sefa, track-and-hold amplifier, 16-bit yekuchaja kugoverazve inoteedzana analog-to-digital converter (ADC), inochinjika yedhijitari sefa, 2.5 V referensi uye referensi.
The input clamp kuchengetedzwa kwedunhu kunogona kushivirira voltages kusvika ± 16.5 V. Iyo AD7606/AD7606-6/AD7606-4 inoshanda kubva kune imwe chete 5 V inopihwa uye inogona kugarisa ±10 V uye ± 5 V yechokwadi bipolar masaini masaini uku s.ampkuramba pamatengo ekufambisa anosvika 200 kSPS kumachaneli ese. The input clamp kuchengetedzwa kwedunhu kunogona kushivirira voltaginosvika ±16.5 V.
Iyo AD7606 ine 1 MΩ analog yekupinza impedance zvisinei nesampling frequency. Iyo imwechete yekugovera mashandiro, pa-chip kusefa, uye yakakwira yekupinza impedance inobvisa kudiwa kwemutyairi op amps uye zvekunze bipolar zvinhu.
Iyo AD7606/AD7606-6/AD7606-4 antialiasing sefa ine 3 dB cutoff frequency ye22 kHz uye inopa 40 dB antialias kurambwa kana s.ampgara pa200 kSPS.
Iyo inoshanduka yedhijitari sefa inofambiswa nepini, inopa kuvandudzwa muSNR, uye inoderedza iyo 3 dB bandwidth.
Chikamu 4: AD7606 Chip Functional Block Diagram
Mufananidzo 4-1: AD7606 Functional Block Diagram
Chikamu 5: AD7606 Chip Nguva Yakatsanangurwa
Mufananidzo5-1: AD7606 Nguva Yemadhiyamu
Iyo AD7606 inobvumira panguva imwe chete sampling yeese masere analog ekuisa nzira.
Nzira dzese dziri sampinotungamirwa panguva imwe chete apo ese mapini eCONVST (CONVST A, CONVST B) akasungwa pamwechete. Chiratidzo chimwe chete cheCONVST chinoshandiswa kudzora ese CONVST x mapopu. Iyo inosimuka yeiyi yakajairika CONVST chiratidzo inotanga panguva imwe chete samprira pane ese analog yekupinza chiteshi (V1 kusvika V8).
Iyo AD7606 ine on-chip oscillator inoshandiswa kuita shanduko. Iyo nguva yekushandura yeese ADC chiteshi ndeye tCONV. Chiratidzo cheBUSY chinoratidza kumushandisi kana shanduko dziri kuitika, saka kana iyo inokwira yeCONVST ikaiswa, BUSY inoenda logic kumusoro uye shanduko yakaderera pakupera kwese kutendeuka maitiro. Iyo inodonha mupendero weBUSY chiratidzo inoshandiswa kuisa ese masere track-uye-kubata amplifiers kudzokera mu track mode. Iko kudonha kweBUSY kunoratidzawo kuti data idzva rave ikozvino kuverengwa kubva parallel bhazi (DB[15:0]), iyo DOUTA uye DOUTB serial data mitsara, kana parallel byte bhazi, DB[7:0].
Chikamu 6: AD7606 Chip Pin Configuration
Muiyo AN706 8-channel AD module hardware wedunhu dhizaini, isu tinoseta iyo AD7606's inoshanda modhi nekuwedzera kudhonza-kumusoro kana kudhonza-pasi resistors kune matatu mapini ekumisikidza eAD7606.
- Iyo AD7606 inotsigira yekunze referensi yekuisa kana yemukati referensi. Kana referensi yekunze ikashandiswa, iyo REFIN/REFOUT yechip inoda yekunze 2.5V referensi. Kana ukashandisa referensi yemukati voltage. Iyo REFIN/REFOUT pini ndeyemukati 2.5V referensi. Iyo REF SELECT pini inoshandiswa kusarudza referensi yemukati kana referensi rekunze. Muchikamu chino, nekuti iko kurongeka kwereferensi yemukati voltage yeAD7606 zvakare yakakwira zvakanyanya (2.49V ~ 2.505V), dhizaini yedunhu inosarudza kushandisa iyo yemukati referensi vol.tage.
Pin Name Set pamwero Tsanangudzo REF SARUDZA High Level Shandisa chirevo chemukati voltaguye 2.5v - Iyo AD7606's AD yekushandura data yekutora inogona kunge iri muparallel modhi kana serial mode. Mushandisi anogona kuseta nzira yekutaurirana nekuisa iyo PAR/SER/BYTE SEL pini nhanho. mune AN706 module dhizaini, sarudza parallel modhi yekuverenga AD data yeAD7606
Pin Name Set pamwero Tsanangudzo PAR/SER/BYTE SEL Low Level Sarudza parallel interface - Pini yeRANGE inoshandiswa kusarudza ingave ±10 V kana ± 5 V seyekupinza renji muAD9767. Muchikamu che ± 5 V, 1LSB = 152.58uV. Muchikamu che ±10 V, 1LSB=305.175 UV. Mudhizaini yedunhu reAN706 module, sarudza ± 5V analog voltage input range
Pin Name Set pamwero Tsanangudzo CHIYERO Low Level Analog chiratidzo chekuisa renji sarudzo: ± 5V - Iyo AD7606 ine inosarudzika yedhijitari yekutanga-odha sinc sefa iyo inofanirwa kushandiswa mumaapplication ayo anononoka mareti ekupinda anoshandiswa kana uko yakakwirira chiratidzo-ku-ruzha reshiyo kana dhayinamu renji inodiwa. The oversampling reshiyo yedhijitari sefa inodzorwa uchishandisa oversampling pins, OS [2:0] (ona Tafura iri pazasi). OS 2 ndiyo MSB control bit, uye OS 0 ndiyo LSB control bit. Tafura iri pasi apa inopa mapejiampling bit decoding kuti usarudze akasiyana oversample rates. Iwo mapini eOS akasungirirwa pamucheto unodonha weBUSY.
Mukugadzirwa kwehardware yeAN706 module, OS[2:0] inotungamira kune yekunze interface, uye FPGA kana CPU inogona kusarudza kushandisa sefa nekudzora pini yepini yeOS[2:0] kuti iwane huyero hwepamusoro. .
Chikamu 7: AD7606 Chip ADC TRANSFER FUNCTION
Iyo inobuda coding yeAD7606 inokwana maviri. Iko kushandurwa kwekodhi kwakagadzirwa kunoitika pakati peinotevedzana nhamba yeLSB kukosha, kureva, 1/2 LSB uye 3/2 LSB. Saizi yeLSB ndeyeFSR/65,536 yeAD7606. Iyo yakanaka yekufambisa hunhu yeAD7606 inoratidzwa muMufananidzo 7-1.
Chikamu 8: Tsanangudzo yeInterface (Pini yakanyorwa paPCB ipini 1)
| Pin | Zita rechiratidzo | Tsanangudzo | Pin | Zita rechiratidzo | Tsanangudzo |
| 1 | GND | Ground | 2 | VCC | +5V |
| 3 | OS1 | Oversampling Sarudza |
4 | OS0 | Oversampling Sarudza |
| 5 | CONVSTAB | Kushandurwa kwedata | 6 | OS2 | Oversampling Sarudza |
| 7 | RD | Verenga | 8 | RESET | Reset |
| 9 | BUSY | Busy | 10 | CS | Chip Sarudza |
| 11 | 12 | FIRSTDATA | Data yekutanga | ||
| 13 | 14 | ||||
| 15 | DB0 | AD Data Bhazi | 16 | DB1 | AD Data Bhazi |
| 17 | DB2 | AD Data Bhazi | 18 | DB3 | AD Data Bhazi |
| 19 | DB4 | AD Data Bhazi | 20 | DB5 | AD Data Bhazi |
| 21 | DB6 | AD Data Bhazi | 22 | DB7 | AD Data Bhazi |
| 23 | DB8 | AD Data Bhazi | 24 | DB9 | AD Data Bhazi |
| 25 | DB10 | AD Data Bhazi | 26 | DB11 | AD Data Bhazi |
Chikamu 9: AN706 Module Kuedza maitiro
- Chekutanga, batanidza iyo AN706 module kune 34-pini yakajairwa yekuwedzera port yeALINX FPGA Development Board (Kana bhodhi rekuvandudza radzimwa).
- Batanidza yako siginecha sosi kune AN706 Module yekupinza yekubatanidza (Cherechedza: AD port yekupinza renji: -5V~+5V).
- Dhawunirodha chirongwa kuFPGA uchishandisa iyo Quartus II kana ISE software (kana iwe uchida zvirongwa zvekuyedza, tumira email ku. rachel.zhou@alinx.com.cn).
- Vhura iyo serial debugging mubatsiri chishandiso uye isa yekutaurirana baud mwero weiyo serial port sezvinotevera
Mufananidzo 9-1: The Serial Debugging Assistant Tool - Iyo voltage kukosha kweiyo 8-chiteshi chiratidzo chekuisa cheiyo AN706 module ichaonekwa mune serial kutaurirana. (Nekuti iyo 8-nzira data inoratidzwa mumutsara mumwe mune serial debugging mubatsiri, isu tinofanirwa kukudza iyo interface.)
Mufananidzo 9-2: Seri Kukurukurirana
Iyo data iri pamusoro ndeye 8 chiteshi che data isina chiratidzo chekuisa, nekuti iyo AD chiratidzo chekuisa chiri munzvimbo inoyangarara, uye iyo AD yekushandura inobuda data inenge 1.75V.
Example: Kana ukabatanidza kuiswa kwechaneli 1 nepini yekuyedza 3.3V paAN706 module ine DuPont mutsetse wekuyedza voltage ye 3.3V pane module.
Mufananidzo 9-3: Channel 1 ine 3.3V test pini
Panguva ino, iyo data yekuyera yeAD1 inoratidzwa pane serial interface ndeye +3.3074.
Mufananidzo 9-4: Pini yekuedza voltage kuratidza pane serial interface
Chikamu 10: AN706 Module Measurement Kururama
Nekupima voltage uye yakakwirira-chaiyo voltmeter, iyo chaiyo yekuyera kuyerwa kweiyo AD706 module iri mukati me 0.5mV mukati -5V kusvika +5V vol.tage input range.
Tafura inotevera inoratidza mhedzisiro yematanho masere eana analogi voltages. Koramu yekutanga idata rakayerwa neiyo yepamusoro-chaiyo dhijitari multimeter, uye ekupedzisira makoramu masere ndiwo mhedzisiro yeAD module's AD module kuyerwa.
Tafura 10-1: Kuedza Voltage
Mune iyi test routine, the oversampling override inogonesa sefa haishandiswe kuvandudza iko kurongeka kweiyo AN706 module. Kune vashandisi vanoda kuwedzera kuvandudza kurongeka kwesampling uye sampling kumhanya haina kukwira, inogona kuiswa muchirongwa. Nzira yesampLing magnification, unogona kuseta oversampling ratio muchirongwa.
Chikamu 11: AN706 Module bvunzo chirongwa tsananguro
Izvi zvinotevera tsananguro pfupi yemazano ega ega Verilog bvunzo zvirongwa, uye vashandisi vanogona zvakare kutaura kune tsananguro yenoti mukodhi.
- Chirongwa chepamusoro: ad706_test.v
Tsanangura iyo FPGA uye AN706 modules uye serial port yekugamuchira uye kutumira iyo chiratidzo chekuisa uye kubuda, uye instantiate matatu subroutines (ad7606.v, volt_cal.v uye uart.v). - AD chirongwa chekutora data: ad7606.v
Zvinoenderana nenguva yeAD7606, sample 16 analogi zviratidzo AD yakashandura 16-bit data. Chirongwa chinotanga chatumira chiratidzo cheCONVSTAB kuAD7606 kuti chitange AD data shanduko, uye chinomirira kuti Busy siginecha iende pasi kuti iverenge data yeAD chiteshi 1 kuchiteshi 16 mukutevedzana.
AD Voltage Shanduko (1 LSB)=5V/ 32758=0.15 mV
- Voltage chirongwa chekushandura data yeAD: volt_cal.v Chirongwa chinoshandura 16-bit data yakaunganidzwa kubva kuad7606.v, Bit[15] kuita zviratidzo zvakanaka uye zvakaipa, uye Bit[14:0] inotanga kuishandura kuita voltage kukosha neinotevera fomula, uyezve inoshandura hexadecimal voltage kukosha mumakumi maviri-manhamba BCD kodhi.
- Serial port kutumira chirongwa: uart.v Nguva inotumira 8 chiteshi chevoltage data kuPC kuburikidza neuart. Iyo serial port's transmit wachi inowanikwa nekupatsanura frequency ne50Mhz, uye iyo baud rate i9600bps.
Zvinyorwa / Zvishandiso
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ALINX AN706 Panguva imwecheteyo Sampling Multi-Channels 16-Bits AD Module [pdf] User Manual AN706 Panguva imwecheteyo Sampling Multi-Channels 16-Bits AD Module, AN706, Simultaneous Sampling Multi-Channels 16-Bits AD Module, Sampling Multi-Channels 16-Bits AD Module, Multi-Channels 16-Bits AD Module, 16-Bits AD Module, AD Module, Module |