NAD T 748, Руководство по обслуживанию

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Pin Name # Pin Description
CX_SDIN1
CX_SDIN2
CX_SDIN3
CX_SDIN4 1
64
63
62
Codec Serial Audio Data Input (
Input
) - Input for two’s complement serial audio data.
CX_SCLK 2 CODEC Serial Clock
(Input/Output)
- Serial clock for the CODEC serial audio interface.
CX_LRCK 3 CODEC Left Right Clock (
Input
/
Output
) - Determines which channel, Left or Right, is currently active on
the CODEC serial audio data line.
VD 4
51
Digital Power (
Input
) - Positive power supply for the digital section.
DGND 5
52
Digital Ground (
Input
) - Ground reference. Should be connected to digital ground.
VLC 6
Control Port Power (
Input
) - Determines the required signal level for the control port.
SCL/CCLK 7 Serial Control Port Clock (
Input
) - Serial clock for the serial control port. Requires an external pull-up
resistor to the logic interface voltage in I
2
C mode as shown in the Typical Connection Diagram.
SDA/CDOUT 8 Serial Control Data (
Input/Output
) - SDA is a data I/O line in I
2
C mode and requires an external pull-up
resistor to the logic interface voltage, as shown in the Typical Connection Diagram. CDOUT is the output
data line for the control port interface in SPI mode.
AD1/CDIN 9 Address Bit 1 (I
2
C)/Serial Control Data (SPI) (
Input
) - AD1 is a chip address pin in I
2
C mode; CDIN is
the input data line for the control port interface in SPI mode.
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
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
C X _SD IN 1
SAI
_
SC
L
K
SAI
_
L
R
C
K
VD
D G N D
VLC
SC L/C CLK
SDA/CD O U T
AD 1/C D IN
AD 0/C S
IN T
R ST
AIN R -
AIN R +
AIN L+
AIN L-
VQ
FI
L
T
+
RE
F
G
ND
AO
U
T
B
4
-
AO
U
T
B
4
+
AO
U
T
A
4
+
AO
UT
A
4
-
VA
AG
N
D
AO
U
T
B
3
-
AO
U
T
B3
+
AO
U
T
A3
+
AO
U
T
A
3
-
AO
UT
B
2
-
AO
U
T
B2
+
AO
U
T
A2
+
AO U TA2-
AO U TB1-
AO U T B1+
AO U T A1+
AO U TA1-
M U T EC
AG N D
VAR X
R XP7/G PO 7
R XP6/G PO 6
R XP5/G PO 5
R XP4/G PO 4
R XP3/G PO 3
R XP2/G PO 2
R XP1/G PO 1
LPFLT
RX
P
0
TXP VD DG
ND
VL
S
SAI
_
SD
O
U
T
RM
CK
CX
_
S
DO
UT
A
D
CI
N2
A
D
CI
N1
OMC
K
C X _LR C K
CX_SCLK
CX
_
S
DI
N4
CX
_
S
DI
N3
C
X
_
S
DI
N2
CS42528
PIN DESCRIPTIONS
2-11