NAD T748 Service Manual page 22

IC 299 : CS42528-CQ
TYPICAL CONNECTION DIAGRAM
+ 3.3 V to + 5 V
+2.5 V
to +5 V
A /D C onverter
C ontroller
+1.8 V
to +5 V
** R e sistors are re qu ired for
2
I C contro l port operation
0.1 μ F 0.01 μ F
+
10 μ F
+ 0.1 μ F 0.01 μ F
10 μ F
4
V D
50
D river
T X P
49
R X P 0
S /P D IF 48
R X P 1/G P O 1
Interface
47
R X P 2/G P O 2
46
R X P 3/G P O 3
U p to 8
45
R X P 4/G P O 4
S ources
44
R X P 5/G P O 5
43
R X P 6/G P O 6
42
R X P 7/G P O 7
53
V LS
0.1 μ F
59
O S C
O M C K
58
A D C IN 1
C S 5361
57
A D C IN 2
C S 5361
55
A /D C onv erter R M C K
54
S A I_S D O U T
60
S A I_LR C K
61
D igital A udio
S A I_S C LK
P rocessor
3
C X _LR C K
2
C X _S C LK
56
C X _S D O U T
1
C X _S D IN 1
64
C X _S D IN 2
63
C X _S D IN 3
62
C X _S D IN 4
11
IN T
12
R S T
M icro-
7
S C L/C C LK
8
S D A /C D O U T
9
A D 1/C D IN
10
A D 0/C S
** **
Ω Ω
2 k 2 k
6
V LC
0.1 μ F
D G N D D G N D
5
C o nn ect D G N D a nd A G N D a t s in gle p oin t n ea r C od ec
51 41
V D V A
A O U T A 1+
A O U T A 1-
A O U T B 1+
A O U T B 1-
A O U T A 2+
A O U T A 2-
A O U T B 2+
A O U T B 2-
A O U T A 3+
A O U T A 3-
A O U T B 3+
CS42528 A O U T B 3-
A O U T A 4+
A O U T A 4-
A O U T B 4+
A O U T B 4-
M U T E C
A IN L+
A IN L-
A IN R +
A IN R -
F ILT +
R E F G N D
LP F LT
A G N D A G N D
5 2 25 4 0
2-10
0.01 μ F 0.1 μ F
+
10 μ F
0.01 μ F 0.1 μ F
+
10 μ F
24
V A
36
A nalog O utput B uffer
37 and
M ute C irc uit (optional)
35
A nalog O utput B uffer
34
and
M ute C irc uit (optional)
32
A nalog O utput B uffer
33
and
M ute C ircuit (optional)
31
A nalog O utput B uffer
30
and
M ute C irc uit (optional)
28
A nalog O utput B uffer
29
and
M ute C ircuit (optional)
27
A nalog O utput B uffer
26
and
M ute C irc uit (optional)
22
A nalog O utput B uffer
23
and
M ute C irc uit (optional)
21
A nalog O utput B uffer
20 and
M ute C ircuit (optional)
+ V A
M ute
*
38
D riv e
(optional)
*
15
A nalog
2700 pF *
Input
16 1
B uffer
14
A nalog
2700 pF * Input
13 1
B uffer
17
V Q
18
+
0.1 μ F
0.1 μF 100 μ F
19
39
3
R F ILT
3 3
C F ILT C R IP
+5 V
2
2
2
2
2
2
2
2
* P u ll up or do w n a s
re qu ired on startu p if th e
M ute C on tro l is u se d.
Left A nalog Input
R ight A nalog Inpu
+
4.7 μ F