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1、ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L954C1_1.2-10DAC-Top_level_and_PSU.prj 10DAC - Top level and PSU Contact Engineer: L954CT 10-Apr-2003 INITIALS Printed:14Sheetof Notes: Contact Tel:01223 203200Mark Tweedale A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5
2、 9PB Waterbeach 23425 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 CON102 MOLEX 52045 D101 1N4148 DO-35 D108 1N4148 DO-35 ADJ REG101 LM317T TO-220 ADJ REG104 LM337T TO-220 C111 100N 50V 0805 C117 100N 50V 0805 D102 1N4148 DO-35 D109 1N4148 DO-35 P120 P132 +12VA -12VA AGND D103 1N4148
3、DO-35 ADJ REG102 LM317T TO-220 C112 100N 50V 0805 D104 1N4148 DO-35 P123 AGND D105 1N4148 DO-35 C113 100N 50V 0805 D106 1N4148 DO-35 P125 +5VA R109 270R 0W125 0805 R111 820R 0W125 0805 P126 P117 P118 +3V3D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 CON101
4、MOLEX 52045 DE_EMPH +18V(U) -18V(U) +18V(U) RLY401C NEC EB2-12NU 12 IC101A 74VHC14M SO-14 89 IC101D 74VHC14M SO-14 34 IC101B 74VHC14M SO-14 1011 IC101E 74VHC14M SO-14 56 IC101C 74VHC14M SO-14 1213 IC101F 74VHC14M SO-14 GND 7 VCC 14 IC101G 74VHC14M SO-14 RESET# D107 1N4148 DO-35 MECH_CLOCK MCLK_DAC_L
5、1 MCLK_DAC_L2 MCLK_DAC_R1 MCLK_DAC_R2 SDATA_MECH SCLK_MECH LRCLK_MECH RESET# DE_EMPH1 DE_EMPH# SDATA_DAC SCLK_DAC LRCLK_DAC L954C2_A L954C2_1.2-10DAC-SRC_Clock_Gen.sch SCLK_MECH SDATA_MECH LRCLK_MECH SDATA_DAC LRCLK_DAC MCLK_DAC_L1 DE_EMPH2 DE_EMPH# RESET# MCLK_DAC_L2 DACL1_OUTL+ DACL1_OUTL- DACL1_O
6、UTR+ DACL1_OUTR- DACL2_OUTL+ DACL2_OUTL- DACL2_OUTR+ DACL2_OUTR- MCLK_DAC_R1 MCLK_DAC_R2 DACR1_OUTL+ DACR1_OUTL- DACR1_OUTR+ DACR1_OUTR- DACR2_OUTL+ DACR2_OUTL- DACR2_OUTR+ DACR2_OUTR- SCLK_DAC L954C3_A L954C3_1.2-10DAC-DACs.sch DACL2_OUTL+ DACL2_OUTL- DACL1_OUTR+ DACL2_OUTR- DACL1_OUTL+ DACL1_OUTL-
7、 DACL2_OUTR+ DACL1_OUTR- DACR2_OUTL+ DACR2_OUTL- DACR1_OUTR+ DACR2_OUTR- DACR1_OUTL+ DACR1_OUTL- DACR2_OUTR+ DACR1_OUTR- L954C4_A L954C4_1.2-10DAC-Analogue_out.sch C108 100N 50V 0805 R105 240R 0W125 0805 R106 240R 0W125 0805 Actual = 12.93V Actual = 5.13V Actual = 3.33V C102 33P 100V 0805C104 33P 10
8、0V 0805 C103 33P 100V 0805 C101 33P 100V 0805 1 FIX101 Dia 3.5mm C128 10N 100V 0805 1 FIX102 Dia 3.5mm C129 10N 100V 0805 1 FIX103 Dia 3.5mm C130 10N 100V 0805 1 FIX104 Dia 3.5mm C131 10N 100V 0805 1 FIX105 Dia 3.5mm C132 10N 100V 0805 1 FIX106 Dia 3.5mm C133 10N 100V 0805 1 FIX107 Dia 3.5mm C134 10
9、N 100V 0805 AGND FD101FD102 P107 P108 P109 P110 P111 P112 P101 P102 P103 P104 P105 P106 P113 C126 100UF 25V YK DE_EMPH Low = No De-emphasis High = 44.1kHz de-emphasis - Can tie DE_EMPH high to force SRC bypass. Then also need to force DACs to no de-emphasis. +3V3D_24MHZ R101 0R0 0W125 0805 R102 0R0
10、0W125 0805 NF R103 0R0 0W1250805 R104 0R0 0W1250805 NF Force DE-EMPH low at this point to prevent DACs from applying de-emphasis when the rest of the circuit is forced into bypass. P129 P130 P114 P121 P119 P131 P122 P124 P115 P116 P127 P128 10 DAC 1 2 3 4 5 6 7 8 CON103 AMP CT +12VA -12VA +3V3D Powe
11、r to SPDIF RX board ITEM1011BLANK PCB 10DACL954PB DE_EMPH1 DE_EMPH2 Via typeBottom pad Via type Via type Via type Bottom pad Bottom pad Bottom pad This symbol represents Chassis ground DGND DGND DGND DGND DGND DGND DGND R114 0R0 0W125 0805 R113 0R0 0W125 0805 DGNDAGND NF +3V3D C135 10N 100V 0805 C13
12、6 10N 100V 0805 C137 10N 100V 0805 C138 10N 100V 0805 C139 10N 100V 0805 C140 10N 100V 0805 DGNDAGND C142 10N 100V 0805 C143 10N 100V 0805 AGND +5VD Other AGND/DGND joins on DAC sheet +5VD ADJ REG103 LM1086CT-ADJ TO-220 C144 100UF 25V YK DGND P133 P134 TOOL101TOOL102TOOL103TOOL104 C145 10N 100V 0805
13、 C109 10N 100V 0805 C110 10N 100V 0805 C114 10N 100V 0805 C115 10N 100V 0805 C116 10N 100V 0805 C105 10N 100V 0805 C107 10N 100V 0805 C106 10N 100V 0805 R110 120R 0W125 0805 R112 200R 0W125 0805 ITEM1024M Screw Torx M3x10MM ST ZPHA3V10A ITEM1034Nut M3 Full Stzp (1000)HJ3A00A ITEM1044Washer M3 Plain
14、ST BLKHL3ABTo be mounted on bottom side under screw head 03_E061MJTProduction release1.0 C146 100N 50V 0805 C148 100N 50V 0805 C147 100N 50V 0805 Place C146 & C148 close to inductors Place C147 close to inductor 20/02/03 R107 2K2 0W125 0805 R108 2K2 0W125 0805 C124 100UF 25V ZA C127 100UF 25V ZA C14
15、1 100N 100V MKS2 C149 100N 100V MKS2 C155 3300UF 25V YK C156 3300UF 25V YK Place these 6 at plane C118 100UF 25V ZA C122 100UF 25V ZA C153 1000UF 16V YXF C154 1000UF 16V YXF C150 100UF 50V YXF C120 100N 100V MKS2 C125 100UF 25V ZA C151 22N 100V MKS2 C121 1000UF 35V ZL NF C152 2200UF 10V ZL C157 2200
16、UF 10V ZL L101 6U8 2.1A 8RHT2 L102 6U8 2.1A 8RHT2 L103 6U8 2.1A 8RHT2 P135 Connection point for +5VA (if required for testing) P136 P139 P137 P138 P140 NF C119 100UF 25V SMIC C123 100UF 25V SMIC NF NF ITEM1051Pad Damping 15x6x3MM SorbothaneE802AP ITEM1061Pad Damping 15x6x3MM SorbothaneE802AP ITEM107
17、1Pad Damping 15x6x3MM SorbothaneE802AP ITEM1081Pad Damping 15x6x3MM SorbothaneE802AP ITEM1091Pad Damping 15x6x3MM SorbothaneE802AP Fit on top of relay RLY401 Cut in half. Place one half on top of C119 and the other on top of C123 Cut in half. Place one half on top of C152 and the other on top of C15
18、7 Cut in half. Place one half either side of crystal X201 Cut in half. Place one half either side of crystal X202 03_E079MJT Listening tests complete. C155/C156/R113 NF, 1.107/03/03 C119/C123 changed, sorbothane added. 03_E109MJTNone to this sheet1.210/04/03 RadioFans.CN ISSUE DRAWING NO. DRAWING TI
19、TLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L954C2_1.2-10DAC-SRC_Clock_Gen.sch 10DAC - SRC and Clock Gen Contact Engineer: L954CT 10-Apr-2003 INITIALS Printed:24Sheetof Notes: Contact Tel:01223 203200Mark Tweedale A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach 23425 SDATA_I 4
20、SCLK_I 5 LRCLK_I 6 SMODE_IN_0 10 BYPASS 9 MUTE_I 14 MUTE_O 15 MCLK_I 2 MCLK_O 3 MMODE_0 26 MMODE_1 27 MMODE_2 28 DGND 8 DGND 21 GRPDLYS 1 RESET 13 VDD_CORE 22 VDD_IO 7 SDATA_O 23 SCLK_O 25 LRCLK_O 24 SMODE_OUT_0 19 SMODE_OUT_1 18 WLNGTH_OUT_0 17 TDM_IN 20 SMODE_IN_1 11 SMODE_IN_2 12 WLNGTH_OUT_1 16
21、IC205 AD1896YRS SSOP-28 OE 1 D0 2 Q5 14 D1 3 Q6 13 D2 4 Q7 12 D3 5 CP 11 D7 9 Q4 15 D6 8 Q3 16 D5 7 Q2 17 D4 6 Q1 18 Q0 19 IC202A 74VHC574M SO-20 Q0 14 Q1 13 Q2 12 Q3 11 PE 9 MR 1 CET 10 CEP 7 CP 2 P0 3 P1 4 P2 5 P3 6 TC 15 IC207A 74VHC161M SO-16 Q0 14 Q1 13 Q2 12 Q3 11 PE 9 MR 1 CET 10 CEP 7 CP 2 P
22、0 3 P1 4 P2 5 P3 6 TC 15 IC206A 74VHC161M SO-16 VCC 16 GND 8 IC207B 74VHC161M SO-16 VCC 16 GND 8 IC206B 74VHC161M SO-16 GND 10 VCC 20 IC202B 74VHC574M SO-20 GND 10 VCC 20 IC203B 74VHC574M SO-20 OE 1 D0 2 Q5 14 D1 3 Q6 13 D2 4 Q7 12 D3 5 CP 11 D7 9 Q4 15 D6 8 Q3 16 D5 7 Q2 17 D4 6 Q1 18 Q0 19 IC201A
23、74VHC574M SO-20 33.8688 MHz clock 24.576 MHz clock 1213 IC208F 74HCU04D SO-14 12 IC208A 74HCU04D SO-14 +3V3D_33MHZ C245 1N0 100V 0805 C213 100N 50V 0805 C235 10UF 50V YK C211 100N 50V 0805 L207 70R100MHz TR201 BFS17H SOT-23 R277 120K 0W125 0805 R279 100K 0W125 0805 R236 100R 0W125 0805 NF NF R225 10
24、0R 0W125 0805 MECH_CLOCK SRC_CLOCK 33.8688 MHZ R223 100R 0W125 0805 SRC_CLOCK MECH_CLOCK R216 100R 0W125 0805 OE1 1 I0 2 O5 13 I1 3 O6 12 I2 4 O7 11 I3 5 OE2 19 I7 9 O4 14 I6 8 O3 15 I5 7 O2 16 I4 6 O1 17 O0 18 IC213A 74VHC541M SO-20 OE1 1 I0 2 O5 13 I1 3 O6 12 I2 4 O7 11 I3 5 OE2 19 I7 9 O4 14 I6 8
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