Homemade Quality DAC Yooj Yim: 24 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:28

Nws txhua yam pib nrog qhov tseeb tias kuv txiav txim siab ua kom kuv lub kaw lus suab zoo dua.

Kauj Ruam 1: Yam Koj Yuav Tsum Ua

Kuv txiav txim siab los ua kuv tus kheej kom muaj DAC zoo, ntxiv rau kuv cov cuab yeej suab. Ua li no, kuv xub xaj ib txheej ntawm cov khoom siv thiab cov ntawv luam tawm Circuit Board ntawm Taobao lub vev xaib.

Kauj Ruam 2: Cov Khoom Siv

Cov teeb suav nrog cov khoom lag luam luam tawm tau zoo, nrog rau txheej ntawm txhua yam khoom tsim nyog tshwj tsis yog USB-SPDIF hloov pauv lub rooj tsavxwm, Kuv yuav tham txog nws tom qab.

Cov ntaub ntawv rau kev sib dhos tsis suav nrog hauv cov khoom siv, tab sis tag nrho cov ntaub ntawv tsim nyog tau qhia hauv daim ntawv luam tawm Circuit Board, nws yuav yooj yim heev rau sib sau ua ke.

Qee cov khoom uas nyuaj dua rau cov laug tau raug teeb tsa ntawm lub rooj tsavxwm.

Kauj Ruam 3: Kev Txhim Kho Txheej Txheem Tshooj 1

Ua ntej kuv nruab resistors thiab capacitors. Hauv cov txheej txheem tsuas muaj ib qho teeb meem, tsis yog 470 Ohm resistors Kuv tau muab tus nqi kwv yees li 560 Ohm, tab sis qhov no tsis tseem ceeb thiab yooj yim los txiav txim.

Tsis tas li ntawd, quartz resonator yuav tsum tau muab muag ntxiv.

Kauj Ruam 4: Kev Txhim Kho Txheej Txheem Tshooj 2

Tom ntej no koj yuav tsum teeb tsa lub diodes, lawv txhua tus tau teeb tsa hauv ib qho kev qhia, ua qhov tsis raug yog qhov nyuaj.

Kauj Ruam 5: Kev Txhim Kho Txheej Txheem Tshooj 3

Kev teeb tsa lub capacitors tseem yog qhov yooj yim, ua ntej peb teeb tsa lub capacitors loj tshaj plaws, tus so peb tso raws li cov cim ntawm lub rooj tsavxwm.

Kauj Ruam 6: Kev Txhim Kho Txheej Txheem Tshooj 4

Nws tseem yuav txhim kho cov txuas, tsuas yog ua raws li qhia hauv daim duab:)

Kauj Ruam 7: XMOS Pawg Thawj Coj

Yog tias koj xav kom koj DAC tsis tsuas yog siv SPDIF nkaus xwb, tab sis USB, tom qab ntawv peb yuav daim npav tshwj xeeb, txuas rau nws thiab lwm yam khoom yuav nyob rau qhov kawg ntawm kev tshuaj xyuas.

Kauj Ruam 8: Kev Txhim Kho Txheej Txheem Tshooj 5

Yog tias koj yuav daim npav XMOS, tom qab ntawd nruab nws thiab nws. Hauv cov khoom siv tau txhua qhov tsim nyog txuas thiab racks mounting.

Kuv tau ntsib teeb meem ntawm no. Ib qho ntawm cov khoom siv hluav taws xob ntawm lub rooj tsavxwm tau siab dhau thiab cuam tshuam nrog kev teeb tsa. Kuv yuav tsum tau muab ib qho ntawm cov xim daj me me tso rau lwm qhov chaw.

Tab sis thaum kawg txhua yam tig tawm zoo.

Kauj Ruam 9: Tswj Pawg Thawj Coj

Txij li DAC muaj ntau qhov kev hloov pauv nkag tau thiab ntau hom kev ua haujlwm, kev tswj hwm thiab teeb tsa pawg thawj coj tau muab rau hauv cov khoom siv. Nws suav nrog hauv kev xa tag nrho.

Kauj Ruam 10: Kev Txhim Kho Txheej Txheem Tshooj 6

Nov yog txheej txheem teeb tsa yog zoo ib yam li nws tau ua dhau los, txhua qhov kev qhia tsis tseem ceeb yog nyob ntawm daim ntawv luam tawm Circuit Board, qhov seem tuaj yeem ua tiav los ntawm kuv cov duab.

Kauj Ruam 11: Kev Txhim Kho Txheej Txheem Tshooj 7

Kauj ruam kawg ntawm lub rooj sib tham dav dav yog kev sib txuas ntawm cov xov hlau thiab cov khoom siv.

Hauv cov khoom lag luam peb tau txais cov teeb tsa zoo li no, peb tuaj yeem xav tias yuav luag txhua yam tau npaj txhij.

Kauj Ruam 12: Qhov Tshwj Xeeb Me

Nws muab tawm tias tam sim ntawd lub cuab yeej tsis xav ua haujlwm, Kuv yuav tsum kaw ob qhov kev sib cuag ntawm pawg tswj hwm. Lawv xav tau los tswj kev suav nrog, tab sis tsis siv ntawm no.

Kauj Ruam 13: Thawj Kuaj

Thawj qhov kev tshuaj xyuas pom tias txhua yam ua haujlwm tau zoo.

Kauj Ruam 14: Xaiv Transformer

Pawg thawj coj xav tau peb yam khoom siv:

1. 2 x 15 V

2.9-12 Volts

3.9-12 Volts

1. Cov cua tshuab muaj ob qho nrog tus kais los ntawm nruab nrab.

2, 3. Ob txoj hlua cua ywj pheej.

Cov chaw tsim khoom feem ntau siv 5-30 W hloov pauv, tab sis kuv qhov kev ntsuas pom tias pawg thawj coj saib xyuas tau siv tsawg heev thiab 5-10 watts yog txaus txaus.

Kauj Ruam 15: Vaj Tsev

Feem ntau txhua qhov khoom siv sib dhos xav tau lub casing.

Lub sijhawm no kuv txiav txim siab siv rooj plaub los ntawm lub txais xov tooj cua, nws tau dhau los ua qhov yooj yim heev. Los ntawm lub cev, Kuv tau tshem tawm txhua yam uas nyob ntawd, thiab qee yam khoom tau raug tshem tawm ua ntej.

Kauj Ruam 16: Vaj Tsev 2

Kuv teeb tsa lub rooj tsavxwm sab hauv rooj plaub, qee qhov haujlwm ua haujlwm yuav tsim nyog ntawm no.

Kauj Ruam 17: Vaj Tsev, Lwm Yam

Ntawm tus muag khoom nplooj ntawv tau npaj ua tiav cov ntaub ntawv ntawm rooj plaub, koj tuaj yeem yooj yim yuav nws, tab sis tom qab ntawd nws yuav tsis ntxim nyiam kom sau:)

Kauj Ruam 18: Pem Hauv Ntej Vaj Huam Sib Luag

Kuv muaj teeb meem me me nrog kev teeb tsa qhov ntsuas ntawm lub vaj huam sib luag pem hauv ntej, Kuv kuj yuav tsum tau siv cov tshuab ua haujlwm.

Kauj Ruam 19: Ua tiav Lub Rooj Sib Tham

Txhawm rau ua lub zog hluav taws xob Kuv siv lub rooj tsav xwm hluav taws xob, ob lub hloov pauv - 15 + 15 volts rau ib qho thiab ob txoj hlua ntawm 12 volts rau qhov thib ob.

Tsis tas li kuv tau lim los ntawm kev cuam tshuam ntawm lub hwj chim nkag mus. Tom qab ntawd, Kuv tau teeb tsa txhua yam hauv rooj plaub.

Kauj Ruam 20: Txhua Yam Npaj

Raws li qhov tshwm sim, kuv tau txais lub cuab yeej npaj tau. Ntawm sab xis ntawm rooj plaub muaj ntu rau txhim kho daim npav nkag.

Txog ntawm qhov no, Kuv npaj tso cov khoom tso rau lub mloog pob ntseg, thiab teeb tsa A-class amplifier rau lawv hauv rooj plaub.

Kauj ruam 21: Tsav tsheb

Yog tias koj npaj yuav siv lub cuab yeej nrog USB txuas, koj yuav xav tau cov tsav tsheb, koj tuaj yeem rub tawm lawv los ntawm no, tsis muaj teeb meem teeb tsa, koj tuaj yeem teeb tsa cov tsav tsheb tshiab kawg.

Kauj ruam 22: Hloov kho dua tshiab

Txawm tias tom qab lub rooj sib txoos, kuv tau sim ua qhov hloov pauv ntawm cov capacitors, vim tias kuv tau ua xyem xyav txog lawv qhov qub.

Capacitors ntawm lwm lub tuam txhab tau siv, tab sis nws tsis muab qhov txiaj ntsig, yog li koj tuaj yeem tso cov uas twb tau teeb tsa.

Kauj Ruam 23: Txhim Kho 2

Tsis tas li kuv tau sim hloov lub suab nrov tab sis tau sim, tab sis txhua yam tseem tsis hloov pauv, Kuv xav tias lub suab nrov yog qhov qub:)

Kauj Ruam 24: Cov Lus Qhia Ntxiv thiab Txuas

Cov vis dis aus ntawm kev tshuaj xyuas, thaum kawg muaj kev qhia ua haujlwm.

Lub ntsiab DAC pawg thawj coj thiab tswj hwm pawg - Txuas

XMOS board - Txuas

Kev tshuaj xyuas zoo hauv kuv blog (hauv Lavxias) - Txuas

Vim qhov tseeb tias kuv tsis tuaj yeem yuav ncaj qha ntawm Taobao lub vev xaib, Kuv siv tus neeg nruab nrab. Txuas rau kev sau npe, tus neeg yuav khoom tshiab txo tus nqi 10 duas las thaum yuav khoom rau $ 50 lossis ntau dua. - Txuas

Yoybue pom nws tus kheej zoo xwb, Kuv pom zoo.

Cov khoom no tseem nyob ntawm lub vev xaib ntawm Aliexpress, tab sis tus nqi siab dua..

DAC - Link

XMOS - Link