8-Channel AD
Fumana Module
AN706
Bukana ea Mosebelisi
Karolo ea 1: 8-Channel AD Acquisition Module Parameters
- VPN ea mojule: AN706
- AD Chip: AD7606
- Channel: 8-channel
- Likotoana tsa AD: 16-bit
- Max SampLebelo: 200KSPS
- Keletso Voltage Rate: -5V ~ + 5V
- Likarolo tsa PCB tsa Module: 4-Layer, lera le ikemetseng la matla le lera la GND
- Sebopeho sa Mojule: 40-pin 0.1 inch spacing hlooho ea basali, tataiso ea ho jarolla
- Ambient Mocheso (ka matla a sebelisitsoeng: -40 ° ~ 85 °, lisebelisoa tsohle tse mojuleng ho fihlela litlhoko tsa indasteri.
- Khokahano ea ho kenya: likhokahano tse 8 tsa SMA le lihlooho tsa 16-pin tse nang le molumo oa 2.54 (Pina Channel ka 'ngoe e na le Lipini tse peli tse ntle le tse mpe)
- Ho nepahala ha tekanyo: Ka har'a 0.5mV
Karolo ea 2: Sebopeho sa module
Setšoantšo sa 2-1: Sebopeho sa mochine oa AD 8-channel
Karolo ea 3: AD7606 Chip Kenyelletso
AD76061 ke 16-bit, nako e le 'ngoe sampling, analog-to-digital data acquisition systems (DAS) e nang le likanale tse robeli, tse tšeletseng le tse 'nè, ka ho latellana. Karolo ka 'ngoe e na le li-analog input clamp tshireletso, filthara ya bobedi e thibelang tshebediso, pina le ho tshwara amplifier, 16-bit tefiso ea phetisetso e latellanang ea analog-to-digital converter (ADC), mochini o feto-fetohang oa dijithale, tšupiso ea 2.5 V le litšupiso.
Kenyelletso clamp tšireletso ea potoloho e ka mamella voltages ho fihla ho ± 16.5 V. AD7606/AD7606-6/AD7606-4 e sebetsa ho tloha phepelong e le 'ngoe ea 5 V 'me e ka amohela ± 10 V le ± 5 V matshwao a nnete a ho kenya bipolar ha sampho fihla ho 200 kSPS bakeng sa likanale tsohle. Kenyelletso clamp tšireletso ea potoloho e ka mamella voltagho fihlela ho ± 16.5 V.
AD7606 e na le impedance ea 1 MΩ ea ho kenya analog ho sa tsotelehe sampling frequency. Ts'ebetso ea phepelo e le 'ngoe, ho sefa ha on-chip, le impedance e phahameng ea ho kenya li felisa tlhoko ea mokhanni op amps le lisebelisoa tsa kantle tsa ho ferekana kelellong.
AD7606/AD7606-6/AD7606-4 antialiasing filter e na le 3 dB cutoff frequency ea 22 kHz mme e fana ka 40 dB antialias rejection ha s.amplula ka 200 kSPS.
Sefahla sa dijithale se feto-fetohang se tsamaisoa ka phini, se hlahisa lintlafatso ho SNR, 'me se fokotsa bandwidth ea 3 dB.
Karolo ea 4: AD7606 Chip Functional Block Diagram
Setšoantšo sa 4-1: AD7606 Setšoantšo sa Block Work
Karolo ea 5: AD7606 Tlhaloso ea Nako ea Chip
Setšoantšo sa5-1: AD7606 Litšoantšo tsa Nako
AD7606 e lumella ka nako e le 'ngoe sampling tsa likanale tse robeli tsa ho kenya analoge.
Likanale tsohle ke sampe etelletsoe pele ka nako e le 'ngoe ha lithakhisa tsa CONVST (CONVST A, CONVST B) li tlanngoe hammoho. Letšoao le le leng la CONVST le sebelisoa ho laola likenyelletso ka bobeli tsa CONVST x. Moeli o ntseng o phahama oa lets'oao lena le tloaelehileng la CONVST le qala ka nako e le 'ngoe samplula likanaleng tsohle tsa ho kenya analoge (V1 ho isa V8).
AD7606 e na le on-chip oscillator e sebelisoang ho etsa liphetoho. Nako ea phetoho bakeng sa liteishene tsohle tsa ADC ke tCONV. Letšoao la BUSY le bontša mosebedisi ha liphetoho li ntse li tsoela pele, kahoo ha moeli o ntseng o phahama oa CONVST o sebelisoa, BUSY e ea holimo ho logic le liphetoho tse tlaase qetellong ea ts'ebetso eohle ea phetoho. Moeli o oelang oa lets'oao la BUSY le sebelisetsoa ho beha lipina tse robeli le ho ts'oara amplifiers khutlela mokhoeng oa pina. Maqhubu a oelang a BUSY a boetse a bontša hore data e ncha e se e ka baloa ho tloha beseng e tšoanang (DB[15:0]), DOUTA le DOUTB serial data line, kapa parallel byte bus, DB[7:0].
Karolo ea 6: AD7606 Chip Pin Configuration
Moetsong oa potoloho ea li-module tsa AN706 8-channel AD, re seta mokhoa oa ts'ebetso oa AD7606 ka ho kenyelletsa lihanyetsi tse hulang kapa tse hulang ho lithakhisa tse tharo tsa AD7606.
- AD7606 e ts'ehetsa tlhahiso ea litšupiso tsa kantle kapa referense ea kahare. Haeba ho sebelisoa referense ea kantle, REFIN/REFOUT ea chip e hloka referense ea kantle ea 2.5V. Haeba u sebelisa referense ea ka hare voltage. Pini ea REFIN/REFOUT ke sesupo sa kahare sa 2.5V. Pini ea REF SELECT e sebelisoa ho khetha referense ea ka hare kapa referense ea kantle. Mojulung ona, hobane ho nepahala ha referense ea ka hare voltage ea AD7606 e boetse e phahame haholo (2.49V ~ 2.505V), moralo oa potoloho o khetha ho sebelisa molumo oa ka hare oa referense.tage.
Pin Lebitso Beha boemo Tlhaloso REF KHETHA Boemo bo Phahameng Sebelisa referense ea ka hare voltag2.5V - AD7606's AD706's conversion data acquisition e ka ba ka mokhoa o ts'oanang kapa oa serial mode. Mosebelisi a ka beha mokhoa oa puisano ka ho beha boemo ba pin PAR/SER/BYTE SEL. moralong oa mojule oa AN7606, khetha mokhoa o tšoanang ho bala data ea ADXNUMX
Pin Lebitso Beha boemo Tlhaloso PAR/SER/BYTE SEL Boemo bo tlase Khetha sebopeho se tšoanang - Pini ea RANGE e sebelisetsoa ho khetha ± 10 V kapa ± 5 V joalo ka mefuta ea ho kenya ka AD9767. Boemong ba ± 5 V, 1LSB=152.58uV. Boemong ba ± 10 V, 1LSB=305.175 UV. Moqapi oa potoloho oa mojule oa AN706, khetha ± 5V analog voltagmefuta ea ho kenya
Pin Lebitso Beha boemo Tlhaloso RANGE Boemo bo tlase Khetho ea mofuta oa pontšo ea analog: ± 5V - AD7606 e na le sefe ea boikhethelo ea dijithale ea "first-order sinc" e lokelang ho sebelisoa lits'ebetsong moo ho sebelisoang litekanyo tse liehang ho feta kapa moo ho lakatsehang tekanyo e phahameng ea mats'oao-ho-lerata kapa sebaka se matla se lakatsehang. The oversampling karo-karolelano ea filtara ditsitithale e laoloa ho sebelisa oversampling pins, OS [2:0] (sheba Lethathamo le ka tlaase). OS 2 ke karoloana ea taolo ea MSB, 'me OS 0 ke karoloana ea taolo ea LSB. Lethathamo le ka tlase le fana ka li-oversampling bit decoding ho khetha li-overs tse fapanengample rates. Lithako tsa OS li kentsoe moeling o oelang oa BUSY.
Moralong oa hardware oa mojule oa AN706, OS[2:0] e lebisa ho sebopeho sa kantle, 'me FPGA kapa CPU e ka khetha hore na e sebelisa sefe ka ho laola boemo ba phini ea OS[2:0] ho fihlela tekanyo e phahameng. .
Karolo ea 7: AD7606 Chip ADC TRANSFER FUNCTION
Khoutu ea tlhahiso ea AD7606 ke tlatsetso ea tse peli. Liphetoho tsa khoutu tse hlophisitsoeng li etsahala bohareng ba litekanyetso tse latellanang tsa LSB, ke hore, 1/2 LSB le 3/2 LSB. Boholo ba LSB ke FSR/65,536 bakeng sa AD7606. Tšobotsi e nepahetseng ea phetisetso ea AD7606 e bontšoa ho Setšoantšo sa 7-1.
Karolo ea 8: Tlhaloso ea Sehokelo (Pin e ngotsoeng ho PCB ke pin 1)
| Pin | Lebitso la Letshwao | Tlhaloso | Pin | Lebitso la Letshwao | Tlhaloso |
| 1 | GND | Fatše | 2 | VCC | +5V |
| 3 | OS1 | Ho fetaampling Khetha |
4 | OS0 | Ho fetaampling Khetha |
| 5 | CONVSTAB | Phetoho ea data | 6 | OS2 | Ho fetaampling Khetha |
| 7 | RD | Bala | 8 | RETS'ELISITSOE | Seta bocha |
| 9 | PHATHAHANE | Phathahane | 10 | CS | Chip Khetha |
| 11 | 12 | FIRSTDATA | Lintlha tsa pele | ||
| 13 | 14 | ||||
| 15 | DB0 | AD Data Bese | 16 | DB1 | AD Data Bese |
| 17 | DB2 | AD Data Bese | 18 | DB3 | AD Data Bese |
| 19 | DB4 | AD Data Bese | 20 | DB5 | AD Data Bese |
| 21 | DB6 | AD Data Bese | 22 | DB7 | AD Data Bese |
| 23 | DB8 | AD Data Bese | 24 | DB9 | AD Data Bese |
| 25 | DB10 | AD Data Bese | 26 | DB11 | AD Data Bese |
Karolo ea 9: Mokhoa oa Teko oa AN706 Module
- Taba ea pele, hokela mojule oa AN706 ho boema-kepe bo tloaelehileng ba katoloso ea lintlha tse 34 tsa ALINX FPGA Development Board (Haeba boto ea nts'etsopele e tima).
- Hokela mohloli oa lets'oao la hau ho sehokelo sa ho kenya Mojule oa AN706 (Hlokomela: Boema-kepe ba AD port: -5V~+5V).
- Khoasolla lenaneo ho FPGA u sebelisa software ea Quartus II kapa ISE (haeba u hloka mananeo a tlhahlobo, romella lengolo-tsoibila ho rachel.zhou@alinx.com.cn).
- Bula sesebelisoa sa motlatsi oa serial debugging mme u behe sekhahla sa puisano sa baud ea serial port ka tsela e latelang
Setšoantšo sa 9-1: The Serial Debugging Assistant Tool - Voltage bohlokoa ea tlhahiso ea lets'oao la 8-channel ea module ea AN706 e tla hlaha puisanong ea serial. (Hobane data ea 8-way e hlahisoa moleng o le mong ho mothusi oa serial debugging, re hloka ho holisa sebopeho.)
Setšoantšo sa 9-2: Puisano ea serial
Lintlha tse ka holimo ke liteishene tse 8 tsa data ntle le tlhahiso ea matšoao, hobane pontšo ea pontšo ea AD e boemong bo phaphametseng, 'me data ea AD conversion output e ka bang 1.75V.
ExampLe: Haeba o hokela tlhahiso ya kanale 1 le pini ya teko ya 3.3V mojulung wa AN706 le mohala wa DuPont ho leka bophahamo ba modumo.tage ea 3.3V mojulung.
Setšoantšo sa 9-3: Channel 1 e nang le pin ea teko ea 3.3V
Ka nako ena, data ea tekanyo ea AD1 e bonts'itsoeng sebopeho sa serial e ka bang +3.3074.
Setšoantšo sa 9-4: Pin ea tekotage bonts'a sebopeho sa serial
Karolo ea 10: Ho nepahala ha Tekanyo ea Mojule oa AN706
Ka ho lekanya matla a sebelisitsoengtage le voltmeter e nepahetseng haholo, tekanyo ea 'nete ea tekanyo ea mojule oa AD706 e ka hare ho 0.5mV ka hare ho -5V ho ea + 5V vol.tage input range.
Tafole e latelang e bonts'a liphetho tsa likanale tse robeli tsa analoge voltages. Kholomo ea pele ke data e lekantsoeng ke multimeter ea dijithale e nepahetseng haholo, 'me litšiea tse robeli tsa ho qetela ke liphetho tsa tekanyo ea mojule oa AD oa AD module.
Lethathamo la 10-1: Teko Moqtage
Mokhoa ona oa teko, ho fetaampfilthara ea liling override ha e sebelisoe ho ntlafatsa ho nepahala ha mojule oa AN706. Bakeng sa basebelisi ba batlang ho ntlafatsa ho nepahala ha sampling le samplebelo la ling ha le phahame, le ka behoa lenaneong. Mokhoa oa sampling magnification, o ka beha oversampling karo-karolelano lenaneong.
Karolo ea 11: Tlhaloso ea lenaneo la tlhahlobo ea AN706
Se latelang ke tlhaloso e khuts'oane ea mehopolo bakeng sa mananeo a mang le a mang a tlhahlobo ea Verilog, mme basebelisi ba ka boela ba bua ka tlhaloso ea lintlha khoutu.
- Lenaneo la boemo bo holimo: ad706_test.v
Hlalosa li-module tsa FPGA le AN706 le serial port ho amohela le ho romela tlhahiso le tlhahiso ea lets'oao, 'me u netefatse li-subroutines tse tharo (ad7606.v, volt_cal.v le uart.v). - Lenaneo la ho fumana lintlha tsa AD: ad7606.v
Ho latela nako ea AD7606, sample matšoao a 16 a analoge AD a fetotse data ea 16-bit. Lenaneo le qala ho romela letšoao la CONVSTAB ho AD7606 ho qala phetoho ea data ea AD, 'me e emetse hore letšoao la Busy le theohe tlaase ho bala lintlha tsa AD channel 1 ho channel 16 ka tatellano.
AD Moqtage Phetoho (1 LSB)=5V/ 32758=0.15 mV
- MoqtagLenaneo la ho sokoloha bakeng sa data ea AD: volt_cal.v Lenaneo le fetolela data ea 16-bit e bokeletsoeng ho tsoa ho ad7606.v, Bit[15] ho ba matšoao a matle le a mabe, 'me Bit[14:0] e qala ho e fetola molumo.tage bohlokoa ka foromo e latelang, ebe e fetolela molumo oa hexadecimaltage bohlokoa ho khoutu ea BCD ea linomoro tse 20.
- Lenaneo la ho romella li-port: uart.v Nako e romella likanale tse 8 tsa voltage data ho PC ka uart. Oache ea phetisetso ea serial port e fumanoa ka ho arola khafetsa ka 50Mhz, mme sekhahla sa baud ke 9600bps.
Litokomane / Lisebelisoa
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ALINX AN706 Simltaneous Sampling Multi-Channels 16-Bits AD Module [pdf] Bukana ea Mosebelisi AN706 Ka nako e le 'ngoe Sampling Multi-Channels 16-Bits AD Module, AN706, Simltaneous Sampling Multi-Channel 16-Bits AD Module, Sampling Multi-Channels 16-Bits AD Module, Multi-Channel 16-Bits AD Module, 16-Bits AD Module, AD Module, Module |