Arcam DiVA CD72 - Page 18

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Filename
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J:\PROJECTS\A9_CD\L816PB_DAC_PCB\Circuits_&_PCB\Issue_5\L816c1_5.DDB - Documents\L816C3_5.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Alpha 9 CD DAC DSP
Circuit Diagram
L816CT
SJB
15-Oct-1999
INITIALS
Date Printed
3 9Sheet of
Notes:
VCCD
DGND
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14
A[0..15]
ROM_ENABLE
R127
15K SM
R139
15K SM
CLK17M
PCAP
XRST
INTR
LDC
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D20
D21
D19
D18
D22 D23
D[0..23]
WR
R130
15K SM
R131
15K SM
SRD
SCK
SER_CH
PRGM
CCLK
Only fit components
on this sheet for DSP
version.
QVCC1
2
QGND1
3
HA2
4
HGND1
5
EXTAL
1
HA1
6
HA0
7
HACK
8
HVCC1
9
HEN
10
HGND2
11
HW/R
12
HREQ
13
H7
14
H6
15
HGND3
16
H5
17
H4
18
H3
19
HVCC2
20
H2
21
HGND4
22
H1
23
H0
24
RXD
25
TXD
26
SGND1
27
SCLK
28
SC0
29
SVCC1
30
SCK
31
SC2
32
STD
33
SGND2
34
SC1
35
QGND2
36
QVCC2
37
SRD
38
NC1
39
NC2
40
BN
41
WT
42
BG
43
BR
44
CVCC1
45
WR
46
RD
47
CGND1
48
NC3
49
DSCK/OS1
50
DR
51
DSO
52
DSI
53
BS
54
Y/X
55
NGND1
56
DS
57
NVCC1
58
PS
59
A0
60
A1
61
NGND2
62
A2
63
A3
64
A4
65
QVCC3
66
QGND3
67
A5
68
NVCC2
69
NGND3
70
A6
71
A7
72
A8
73
A9
74
HGND4
75
A10
76
A11
77
A12
78
NVCC3
79
A13
80
NGND5
81
A14
82
A15
83
D0
84
D1
85
DGND1
86
D2
87
D3
88
DVCC1
89
D4
90
D5
91
DGND2
92
D6
93
D7
94
D8
95
D9
96
QVCC4
97
QGND4
98
DGND3
99
D10
100
D11
101
DVCC2
102
D12
103
D13
104
DGND4
105
D14
106
D15
107
D16
108
D17
109
DGND5
110
D18
111
D19
112
DVCC3
113
D20
114
D21
115
DGND6
116
D22
117
D23
118
NMI/MODC
119
IRQB/MODB
120
IRQA/MODA
121
CLGND1
122
CKOUT
123
CLVCC1
124
RESET
125
CKP
126
PVCC1
127
PCAP
128
PGND1
129
PLOCK
130
PINT
131
XTAL
132
U30
DSP56002
PCAP
LDC
INTR
CLK17M
ROM_ENABLE
PRGM
SER_CH
CCLK
SCK
SRD
WR
VCCD
WR
RD
VDSP
RD
VDSP
D22 D23
A15
SCO
SCO
A[0..15]
D[0..23]
SER_CH2
MUTE
DEEMPH
R165
10R SM
C129
10N SM
C151
10N SM
C130
10N SM
C131
10N SM
C153
10N SM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SK4
HEADER 2X8WAY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SK5
HEADER 2X8WAY
A0 A1
Q_18
Q_17
Q_24
Q_27 Q_21 Q_23 Q_20 Q_22
Q_32
Q_31
Q 28
Q 30
Q 29
Q_25Q 26
Q_19
1
1st Issue
21-APR-98
SJB98_1020
2No Change on this sheet
13-May-98
SJB98_1022
3No Change on this sheet
21-Sept-98
SJB98_1058
4No Change on this sheet
02-Nov-98
LJW98_1067
5NO CHANGE ON THIS SHEET
14-10-99
WAF99_1072
+
C155
100U EL
L20
33UH 2A RA