Arcam-CD192DAC-cd-sch维修电路原理图.pdf
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1、ISSUEDRAWING NO.DRAWING TITLEDATEFilename:ECO No.DESCRIPTION OF CHANGEL954C1_1.2-10DAC-Top_level_and_PSU.prj10DAC - Top level and PSUContact Engineer:L954CT10-Apr-2003INITIALSPrinted:14SheetofNotes:Contact Tel:01223 203200Mark TweedaleA & R Cambridge Ltd.Pembroke AvenueCambridge CB5 9PBWaterbeach234
2、251234567891011121314151617181920212223CON102MOLEX52045D1011N4148DO-35D1081N4148DO-35ADJREG101LM317TTO-220ADJREG104LM337TTO-220C111100N50V0805C117100N50V0805D1021N4148DO-35D1091N4148DO-35P120P132+12VA-12VAAGNDD1031N4148DO-35ADJREG102LM317TTO-220C112100N50V0805D1041N4148DO-35P123AGNDD1051N4148DO-35C1
3、13100N50V0805D1061N4148DO-35P125+5VAR109270R0W1250805R111820R0W1250805P126P117P118+3V3D1234567891011121314151617181920212223242526272829303132CON101MOLEX52045DE_EMPH+18V(U)-18V(U)+18V(U)RLY401CNECEB2-12NU12IC101A74VHC14MSO-1489IC101D74VHC14MSO-1434IC101B74VHC14MSO-141011IC101E74VHC14MSO-1456IC101C74
4、VHC14MSO-141213IC101F74VHC14MSO-14GND7VCC14IC101G74VHC14MSO-14RESET#D1071N4148DO-35MECH_CLOCKMCLK_DAC_L1MCLK_DAC_L2MCLK_DAC_R1MCLK_DAC_R2SDATA_MECHSCLK_MECHLRCLK_MECHRESET#DE_EMPH1DE_EMPH#SDATA_DACSCLK_DACLRCLK_DACL954C2_AL954C2_1.2-10DAC-SRC_Clock_Gen.schSCLK_MECHSDATA_MECHLRCLK_MECHSDATA_DACLRCLK_
5、DACMCLK_DAC_L1DE_EMPH2DE_EMPH#RESET#MCLK_DAC_L2DACL1_OUTL+DACL1_OUTL-DACL1_OUTR+DACL1_OUTR-DACL2_OUTL+DACL2_OUTL-DACL2_OUTR+DACL2_OUTR-MCLK_DAC_R1MCLK_DAC_R2DACR1_OUTL+DACR1_OUTL-DACR1_OUTR+DACR1_OUTR-DACR2_OUTL+DACR2_OUTL-DACR2_OUTR+DACR2_OUTR-SCLK_DACL954C3_AL954C3_1.2-10DAC-DACs.schDACL2_OUTL+DAC
6、L2_OUTL-DACL1_OUTR+DACL2_OUTR-DACL1_OUTL+DACL1_OUTL-DACL2_OUTR+DACL1_OUTR-DACR2_OUTL+DACR2_OUTL-DACR1_OUTR+DACR2_OUTR-DACR1_OUTL+DACR1_OUTL-DACR2_OUTR+DACR1_OUTR-L954C4_AL954C4_1.2-10DAC-Analogue_out.schC108100N50V0805R105240R0W1250805R106240R0W1250805Actual = 12.93VActual = 5.13VActual = 3.33VC1023
7、3P100V0805C10433P100V0805C10333P100V0805C10133P100V08051FIX101Dia 3.5mmC12810N100V08051FIX102Dia 3.5mmC12910N100V08051FIX103Dia 3.5mmC13010N100V08051FIX104Dia 3.5mmC13110N100V08051FIX105Dia 3.5mmC13210N100V08051FIX106Dia 3.5mmC13310N100V08051FIX107Dia 3.5mmC13410N100V0805AGNDFD101FD102P107P108P109P1
8、10P111P112P101P102P103P104P105P106P113C126100UF25VYKDE_EMPHLow = No De-emphasisHigh = 44.1kHz de-emphasis-Can tie DE_EMPH high to force SRC bypass. Then also need to force DACs to no de-emphasis.+3V3D_24MHZR1010R00W1250805R1020R00W1250805NFR1030R00W1250805R1040R00W1250805NFForce DE-EMPH low at this
9、point to prevent DACs from applying de-emphasis when the rest of the circuit is forced into bypass.P129P130P114P121P119P131P122P124P115P116P127P12810 DAC12345678CON103AMPCT+12VA-12VA+3V3DPower to SPDIF RX boardITEM1011BLANK PCB 10DACL954PBDE_EMPH1DE_EMPH2Via typeBottom padVia typeVia typeVia typeBot
10、tom padBottom padBottom padThis symbol represents Chassis groundDGNDDGNDDGNDDGNDDGNDDGNDDGNDR1140R00W1250805R1130R00W1250805DGNDAGNDNF+3V3DC13510N100V0805C13610N100V0805C13710N100V0805C13810N100V0805C13910N100V0805C14010N100V0805DGNDAGNDC14210N100V0805C14310N100V0805AGND+5VDOther AGND/DGND joins on
11、DAC sheet+5VDADJREG103LM1086CT-ADJTO-220C144100UF25VYKDGNDP133P134TOOL101TOOL102TOOL103TOOL104C14510N100V0805C10910N100V0805C11010N100V0805C11410N100V0805C11510N100V0805C11610N100V0805C10510N100V0805C10710N100V0805C10610N100V0805R110120R0W1250805R112200R0W1250805ITEM1024M Screw Torx M3x10MM ST ZPHA3
12、V10AITEM1034Nut M3 Full Stzp (1000)HJ3A00AITEM1044Washer M3 Plain ST BLKHL3ABTo be mounted on bottom side under screw head03_E061MJTProduction release1.0C146100N50V0805C148100N50V0805C147100N50V0805Place C146 & C148 close to inductorsPlace C147 close to inductor20/02/03R1072K20W1250805R1082K20W12508
13、05C124100UF25VZAC127100UF25VZAC141100N100VMKS2C149100N100VMKS2C1553300UF25VYKC1563300UF25VYKPlace these 6 at planeC118100UF25VZAC122100UF25VZAC1531000UF16VYXFC1541000UF16VYXFC150100UF50VYXFC120100N100VMKS2C125100UF25VZAC15122N100VMKS2C1211000UF35VZLNFC1522200UF10VZLC1572200UF10VZLL1016U82.1A 8RHT2L1
14、026U82.1A 8RHT2L1036U82.1A8RHT2P135Connection point for +5VA(if required for testing)P136P139P137P138P140NFC119100UF25VSMICC123100UF25VSMICNFNFITEM1051Pad Damping 15x6x3MM SorbothaneE802APITEM1061Pad Damping 15x6x3MM SorbothaneE802APITEM1071Pad Damping 15x6x3MM SorbothaneE802APITEM1081Pad Damping 15
15、x6x3MM SorbothaneE802APITEM1091Pad Damping 15x6x3MM SorbothaneE802APFit on top of relay RLY401Cut in half. Place one half on top of C119 and the other on top of C123Cut in half. Place one half on top of C152 and the other on top of C157Cut in half. Place one half either side of crystal X201Cut in ha
16、lf. Place one half either side of crystal X20203_E079MJTListening tests complete. C155/C156/R113 NF,1.107/03/03C119/C123 changed, sorbothane added.03_E109MJTNone to this sheet1.210/04/03RadioFans.CN 收音机爱 好者资料库ISSUEDRAWING NO.DRAWING TITLEDATEFilename:ECO No.DESCRIPTION OF CHANGEL954C2_1.2-10DAC-SRC_
17、Clock_Gen.sch10DAC - SRC and Clock GenContact Engineer:L954CT10-Apr-2003INITIALSPrinted:24SheetofNotes:Contact Tel:01223 203200Mark TweedaleA & R Cambridge Ltd.Pembroke AvenueCambridge CB5 9PBWaterbeach23425SDATA_I4SCLK_I5LRCLK_I6SMODE_IN_010BYPASS9MUTE_I14MUTE_O15MCLK_I2MCLK_O3MMODE_026MMODE_127MMO
18、DE_228DGND8DGND21GRPDLYS1RESET13VDD_CORE22VDD_IO7SDATA_O23SCLK_O25LRCLK_O24SMODE_OUT_019SMODE_OUT_118WLNGTH_OUT_017TDM_IN20SMODE_IN_111SMODE_IN_212WLNGTH_OUT_116IC205AD1896YRSSSOP-28OE1D02Q514D13Q613D24Q712D35CP11D79Q415D68Q316D57Q217D46Q118Q019IC202A74VHC574MSO-20Q014Q113Q212Q311PE9MR1CET10CEP7CP2P
19、03P14P25P36TC15IC207A74VHC161MSO-16Q014Q113Q212Q311PE9MR1CET10CEP7CP2P03P14P25P36TC15IC206A74VHC161MSO-16VCC16GND8IC207B74VHC161MSO-16VCC16GND8IC206B74VHC161MSO-16GND10VCC20IC202B74VHC574MSO-20GND10VCC20IC203B74VHC574MSO-20OE1D02Q514D13Q613D24Q712D35CP11D79Q415D68Q316D57Q217D46Q118Q019IC201A74VHC574
20、MSO-2033.8688 MHz clock24.576 MHz clock1213IC208F74HCU04DSO-1412IC208A74HCU04DSO-14+3V3D_33MHZC2451N0100V0805C213100N50V0805C23510UF50VYKC211100N50V0805L20770R100MHzTR201BFS17HSOT-23R277120K0W1250805R279100K0W1250805R236100R0W1250805NFNFR225100R0W1250805MECH_CLOCKSRC_CLOCK33.8688 MHZR223100R0W125080
21、5SRC_CLOCKMECH_CLOCKR216100R0W1250805OE11I02O513I13O612I24O711I35OE219I79O414I68O315I57O216I46O117O018IC213A74VHC541MSO-20OE11I02O513I13O612I24O711I35OE219I79O414I68O315I57O216I46O117O018IC212A74VHC541MSO-20GND10VCC20IC213B74VHC541MSO-20All resistors 62mW, 1206 quad packAll resistors 62mW, 1206 quad
22、 packMCLK_DAC_L1MCLK_DAC_L2MCLK_DAC_R1MCLK_DAC_R2MCLK_BYPASSMCLK_COUNT_BUFFMCLK_COUNT1MCLK_COUNT2MCLK_DAC_R2MCLK_DAC_R1MCLK_DAC_L2MCLK_DAC_L1SDATA_MECHSCLK_MECHLRCLK_MECHRESET#+3V3D_SRC_CORE+3V3D_SRC_IOSets o/p format to I2SSets o/p format to 24 bitsSets i/p format to Right Justified, 16 bitC201100N
23、50V 0805C202100N50V0805+3V3D_SRC_COREPlace caps as close to SRC as possSRC_CLOCKC208100N50V0805NFR2480R00W1250805R2560R00W1250805NFR218100R0W1250805high=countR219100R0W1250805R221100R0W1250805Internal pull-up.High for shortgroup delay.DE_EMPH1DE_EMPH1This line from the mech is high when data has pre
24、-emphasis.R209100R0W1250805R210100R0W1250805R211100R0W1250805Place these resistors close to the inputs of the SRCNFR217100R0W1250805DE_EMPH1-3dB at 160kHzMCLK_COUNT1MCLK_COUNT2MCLK_COUNT_BUFFMCLK_COUNT1MCLK_COUNT2MCLK_COUNT_BUFFDE_EMPH1R2700R00W1250805Dont need 16MHz clock for counters and buffer wh
25、en data is emphasised16.9344 MHzR266 0R0R267 0R0R268 0R0DE_EMPH#DE_EMPH1DE_EMPH#DE_EMPH#R207100R0W1250805NFFit this resistor only if using 541 insteadMCLK_BYPASSMCLK_BYPASSR212100R0W1250805R213100R0W1250805SDATA_DACSCLK_DACLRCLK_DACC23210N100V0805123IC204A74VHC08MSO-14456IC204B74VHC08MSO-14111213IC2
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