Arcam DiVA CD72 - Page 27

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87654321
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ISSUE
DRAWING NO.
23425
DRAWING TITLE
Drawn by:
DATE
Filename
ECO No. DESCRIPTION OF CHANGE
J:\FILES\L-ELECT\PCB complete packages\l900s\l912 New 2000 DAC\L912_2.0\L912_2.0.DDB - L912C4_2.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
9 CD DAC ASIC
Circuit Diagram
L912CT
CW
28-Jun-2001
INITIALS
Date Printed
3 8Sheet of
Notes:
L[0..15]
SEL[0..2]
R[0..15]
RDY
DCSET_L
127
DCSET_L
128
FBCKL
129
FBCKL
130
NC
131
FBCKLSNS
132
FBCKLSNS(2)
134
FBCKLSNS(2)
135
MID_L
136
OUT2L
138
NC
21
NC
17
NC
18
NC
14
SPRL2
1
NC
16
NC
15
5VREFL
3
0VREFL
4
VCCA1L
5
VCCA1L(2)
6
GND1L(2)
7
BIAS_L
144
OUTC_L
140
NC
12
NC
11
VCCA2
9
OUT2L
141
OUT1L
142
OUT1L
139
NC
19
IN1L
143
SEL1
27
VCCD
24
SEL0
26
NC
22
SEL2
28
L11
50
A5
31
R15
55
L13
52
L14
53
L1
40
VCCD
38
GNDD
37
L15
54
L10
49
L3
42
L4
43
L6
45
L5
44
L7
46
A1
35
A2
34
L9
48
A0
36
A4
32
A3
33
A7
29
R14
56
R8
62
R9
61
R11
59
R10
60
R6
64
R5
65
R4
66
FBCKLSNS
133
IN1L
137
R7
63
R12
58
R13
57
SPRL1
2
GNDA1L
8
GNDA2
10
NC
13
NC
20
GNDD
23
RDY
25
A6
30
L0
39
L2
41
L8
47
L12
51
R3
67
R2
68
R1
69
R0
70
VCCD
71
GNDD
72
A8
73
A9
74
A10
75
A11
76
A12
77
A13
78
A14
79
A15
80
A/D
81
NC
82
NMODE
83
PMODE
84
VCCD
85
GNDD
86
GNDA2
99
VCCA2
100
GNDA1R
101
GNDA1R(2)
102
VCCA1R(2)
103
VCCA1R
104
0VREFR
105
5VREFR
106
NC
87
NC
88
NC
89
NC
90
NC
91
NC
92
NC
93
NC
94
NC
95
NC
96
NC
97
NC
98
SPRR1
107
SPRR2
108
BIAS_R
109
IN1R
110
OUT1R
111
OUT2R
112
OUTC_R
113
OUT1R
114
OUT2R
115
IN1R
116
MID_R
117
FBCKRSNS(2)
118
FBCKRSNS(2)
119
FBCKRSNS
121
FBCKRSNS
120
NC
122
FBCKR
123
FBCKR
124
DCSET_R
125
DCSET_R
126
IC63
ASIC DAC
L[0..15]
R[0..15]
L0
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
L11
L12
L13
L14
L15
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
SEL[0..2]
SEL0 SEL1 SEL2
FBCKR
FBCKR
FBCKRSNS
FBCKRSNS
MID_R
AUDIO_R
VCCA1R(2)
VCCA1R
GNDA1R(2)
GNDA1R
DCSET_R
DCSET_R
SERVQK
Right Audio Stage
L912C5_2.0.SCH
EMC
1
N F
SK2A
PHONO4G
N F
SK2B
PHONO4G
EMC Shield
SH1
EMCPHONO
CHASS
FBCKL
FBCKL
FBCKLSNS
FBCKLSNS
MID_L
AUDIO_L
VCCA1L(2)
VCCA1L
GNDA1L(2)
GNDA1L
DCSET_L
DCSET_L
SERVQK
Left Audio Stage
L912C6_2.0.SCH
R70
10R SM
R15
10R SM
VDDAC
VCCA
R76
0R0 SM
R77
15K SM
R49
15K SM
A/D
NMODE
PMODE
C66
1N0 SM
OUTL OUTR
GNDAN
FL
FLN
FR
FRN
VASICDIG
R132 100K SM
TR29
BC859B
MUTERLY
R120
10K SM
-13V
C164
1N0 SM
+
C3
100U CERAFINE
L1
33UH 2A RA
AA0 AA1 AA2 AA3 AA4 AA5 AA6 AA7
AA8 AA9 AA10 AA11 AA12 AA13 AA14 AA15
AA[0..15]
AA[0..15]
RLY1A
RLY 51SB12T
RLY1B
RLY 51SB12T
C85
4N7 PP
C50
4N7 PP
RDY
MUTERLY
AUDIO L
VCCA1L
VCCA1L(2)
GNDA1L(2)
GNDA1L
GNDA1R
GNDA1R(2)
VCCA1R(2)
VCCA1R
MID R
FBCKRSNS
FBCKRSNS
FBCKR
FBCKR
DCSET_R
DCSET R
DCSET L
DCSET L
FBCKL
FBCKL
FBCKLSNS
FBCKLSNS
MID_L
C54
10N 0805
C78
10N 0805
C138
10N 0805
C84
10N 0805
C139
100N 0805
C140
100N 0805
01_1078 CW 1-5-01 Production release 1.0
01_1084 1.1CW 30-4-01 Listening component changes
CW 9-6-01 2 0