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ITEM101 1 L954PB BLANK PCB 10DAC ITEM105 1 E802AP Pad Damping 15x6x3MM Sorbothane Fit on top of relay RLY401
ITEM102 4 HA3V10A M Screw Torx M3x10MM ST ZP ITEM106 1 E802AP Pad Damping 15x6x3MM Sorbothane Cut in half. Place one half on top of C119 and the other on top of C123
ITEM103 4 HJ3A00A Nut M3 Full Stzp (1000) ITEM107 1 E802AP Pad Damping 15x6x3MM Sorbothane Cut in half. Place one half on top of C152 and the other on top of C157
ITEM104 4 HL3AB Washer M3 Plain ST BLK
Via type
To be mounted on bottom side under screw head
Bottom pad
ITEM108
ITEM109
1
1
E802AP
E802AP
Pad Damping 15x6x3MM Sorbothane
Pad Damping 15x6x3MM Sorbothane
Cut in half. Place one half either side of crystal X201
Cut in half. Place one half either side of crystal X202
10 DAC
P101 P107
L954C2_A L954C3_A L954C4_A
L954C2_1.2-10DAC-SRC_Clock_Gen.sch L954C3_1.2-10DAC-DACs.sch L954C4_1.2-10DAC-Analogue_out.sch
CON101
DACL1_OUTL+ DACL1_OUTL+
1
MECH_CLOCK
2
DACL1_OUTL- DACL1_OUTL-
3
C101 4 P102 P108 SCLK_MECH
SCLK_MECH DACL1_OUTR+ DACL1_OUTR+
5
33P C102 P103 P109 SDATA_MECH MCLK_DAC_L1 MCLK_DAC_L1
6
100V SDATA_MECH DACL1_OUTR- DACL1_OUTR-
7
0805 33P C103 P104 P110 LRCLK_MECH MCLK_DAC_L2 MCLK_DAC_L2
8
100V LRCLK_MECH DACL2_OUTL+ DACL2_OUTL+
9
0805 33P C104 MCLK_DAC_R1 MCLK_DAC_R1
10
100V IC101A IC101B DACL2_OUTL- DACL2_OUTL-
11
P105 P111 MCLK_DAC_R2 MCLK_DAC_R2
0805 33P 12 1 2 P136 3 4 P113 RESET#
100V RESET# DACL2_OUTR+ DACL2_OUTR+
13
0805 SCLK_DAC SCLK_DAC
14
74VHC14M 74VHC14M DACL2_OUTR- DACL2_OUTR-
15
P106 P112 DE_EMPHSO-14 SO-14 P137 SDATA_DAC SDATA_DAC
16
DE_EMPH1 DACR1_OUTL+ DACR1_OUTL+
17
LRCLK_DAC LRCLK_DAC
18
R101 DACR1_OUTL- DACR1_OUTL-
19
20
C105 C107 0R0 DE_EMPH# DE_EMPH# DACR1_OUTR+ DACR1_OUTR+
21
0W125 R103
22 DE_EMPH2
10N 10N 0805 DE_EMPH2 DACR1_OUTR- DACR1_OUTR-
23
100V 100V 0R0
24 +3V3D_24MHZ
0805 0805 R102 0W125 0805 DACR2_OUTL+ DACR2_OUTL+
25 DE_EMPH1
26
0R0 NF R104 DACR2_OUTL- DACR2_OUTL-
27 P138
0W125
28
0805 0R0 NF DACR2_OUTR+ DACR2_OUTR+
29 DGND
0W125 0805 RESET#
30
DACR2_OUTR- DACR2_OUTR-
31
32
Via type
DE_EMPH
MOLEX
52045 Low = No De-emphasis
P114 High = 44.1kHz de-emphasis
C106
DGND Force DE-EMPH low at this point
10N --------------------------- to prevent DACs from applying
100V de-emphasis when the rest of the
0805 Can tie DE_EMPH high to force SRC circuit is forced into bypass.
bypass. Then also need to force DGND C135 C136 C137 C138 C139 C140 C142 C143 AGND
DACs to no de-emphasis. IC101C
5 6 10N 10N 10N 10N 10N 10N 10N 10N
+3V3D Power to SPDIF RX board 100V 100V 100V 100V 100V 100V 100V 100V
IC101G 0805 0805 0805 0805 0805 0805 0805 0805
74VHC14M
14 NF
VCC SO-14
+12VA CON103
C108 1
IC101D
2
100N 9 8 3
D103 7 50V 4
GND 0805 P135 -12VA R113
5 TOOL101 TOOL102 TOOL103 TOOL104
74VHC14M Connection point for +5VA
Actual = 5.13V +3V3D 6
SO-14 (if required for testing) 0R0 NF
74VHC14M DGND 7
1N4148 0W125
SO-14 8
DO-35 IC101E 0805
+18V(U) +5VA
REG102 11 10
P123 R114
AMP FD101 FD102
DGND AGND CT
74VHC14M 0R0 NF
ADJ
LM317T
R109 D104 SO-14 0W125
TO-220
0805
270R 1N4148 IC101F
C120 C150 C112 0W125 DO-35 C151 C152 C157 13 12 DGND AGND
P122 0805
100N 100UF 100N 22N 2200UF 2200UF Other AGND/DGND joins on DAC sheet
100V 50V 50V 100V 10V 10V 74VHC14M
MKS2 YXF 0805 C125 R111 MKS2 ZL ZL SO-14
DGND D105
100UF 820R
25V 0W125 Actual = 3.33V
ZA 0805 Place C147 close to inductor
1N4148
DO-35
+5VD +3V3D
AGND L103 REG103
P134 P125
ADJ
6U8 LM1086CT-ADJ
2.1A TO-220 R110 D106
8RHT2
120R 1N4148
C147 C144 C113 0W125 DO-35 C121
P124 0805
D101 100N 100UF 100N 1000UF
50V 25V 50V 35V
Place C146 & C148 close to inductors 0805 YK 0805 C126 R112 ZL
Actual = 12.93V
1N4148 100UF 200R
DO-35 25V 0W125
+18V(U) +12VA
REG101 Place these 6 at plane YK 0805
P120
ADJ
CON102 LM317T DGND
1 Via type Bottom pad TO-220 R105 D102
2 L101
3 P115 P117 240R 1N4148
4 C146 C118 C111 0W125 DO-35 C119 C141 C153 C155 NF
C109 5 6U8 P119 0805
6 2.1A 8RHT2 100N 100UF 100N 100UF 100N 1000UF 3300UF FIX101 FIX102 FIX104 FIX105 FIX106 FIX107
10N 7 50V 25V 50V 25V 100V 16V 25V
P116 L102 P118 ZA C124 SMIC YXF YK
100V 8 0805 0805 R107 MKS2 1 1 1 1 1 1
0805 9
C110 10 6U8 100UF 2K2
11 +5VD 2.1A 8RHT2 25V 0W125
10N 12 ZA 0805 P121 FIX103
100V P133 Dia 3.5mm Dia 3.5mm Dia 3.5mm Dia 3.5mm Dia 3.5mm Dia 3.5mm
13
0805 14 1 P139
C145 15 C127 R108 AGND P140
16
10N 17 100UF 2K2 C130 C128 C129 C131 C132 C133 C134
P127 P129
100V C114 18 25V 0W125
0805 RLY401C D107 C148 C122 C117 ZA P131 0805 C123 C149 C154 C156 NF Dia 3.5mm 10N 10N 10N 10N 10N 10N 10N
19
10N 20 100V 100V 100V 100V 100V 100V 100V
100V 21 NEC 1N4148 100N 100UF 100N 100UF 100N 1000UF 3300UF 0805 0805 0805 0805 0805 0805 0805
0805 22 EB2-12NU DO-35 50V 25V 50V R106 D109 25V 100V 16V 25V
23 0805 ZA 0805 SMIC MKS2 YXF YK
LM337T 240R 1N4148
ADJ
P128 P130
C115 Via type Bottom pad TO-220 0W125 DO-35 DGND AGND
MOLEX 0805
10N 52045
Bottom pad P132
100V REG104
0805 P126 -18V(U) -12VA
C116
DRAWING TITLE
DGND D108
10N 10DAC - Top level and PSU
100V
0805
Filename: L954C1_1.2-10DAC-Top_level_and_PSU.prj 03_E109 MJT 10/04/03 None to this sheet 1.2
23425
1N4148
DO-35 Listening tests complete. C155/C156/R113 NF,
Notes: