Read Sony MHC-S3 / ST-S3 Service Manual online
24
ST-S3
•
DSP BOARD IC605 AK4527 (A/D, D/A CONVERTER)
Pin No.
Pin Name
I/O
Description
1
SDOS
I
Audio serial data source selection signal input terminal
“L”: internal ADC output, “H”: DAUX input (fixed at “L” in this set)
“L”: internal ADC output, “H”: DAUX input (fixed at “L” in this set)
2
I2C
I
Serial control mode selection signal input terminal “L”: 3-wire serial, “H”: I2C bus
3
SMUTE
I
Soft muting on/off signal input from the system controller (IC501) “L”: muting on
4
BICK
I
Bit clock signal (2.8224 MHz) input from the CXD9617R (IC601)
5
LRCK
I
L/R sampling clock (44.1 kHz) signal input from the CXD9617R (IC601)
6 to 8
SDTI1 to SDIT3
I
Audio serial data input from the CXD9617R (IC601)
9
SDTO
O
Audio serial data output to the CXD9617R (IC601)
10
DAUX
I
Audio serial data input terminal Not used (fixed at “L”)
11
DFS
I
Double speed sampling mode signal input terminal
“L”: normal speed, “H”: double speed (fixed at “L” in this set)
“L”: normal speed, “H”: double speed (fixed at “L” in this set)
12
DEM1
I
De-emphasis signal input terminal Fixed at “L” in this set
13
DEM0
I
De-emphasis signal input terminal Fixed at “H” in this set
14
TVDD
—
Power supply terminal (+5V) (for output buffer )
15
DVDD
—
Power supply terminal (+5V) (digital system)
16
DVSS
—
Ground terminal (digital system)
17
PDN
I
Power down and reset signal input from the M61512FP (IC607) “L”: power down and reset
18 to 20
ICKS2 to ICKS0
I
Input clock signal selection terminal Fixed at “L” in this set
21, 22
CAD1, CAD0
I
Chip address signal input terminal Not used (fixed at “L”)
23
LOUT3
O
Analog signal output for center to the M61512FP (IC607)
24
ROUT3
O
Analog signal output for sub woofer to the M61512FP (IC607)
25
LOUT2
O
Analog signal output for surround L-ch to the M61512FP (IC607)
26
ROUT2
O
Analog signal output for surround R-ch to the M61512FP (IC607)
27
LOUT1
O
Analog signal output for front L-ch to the M61512FP (IC607)
28
ROUT1
O
Analog signal output for front R-ch to the M61512FP (IC607)
29
LIN–
I
L-ch analog signal negative input from the M61512FP (IC607)
30
LIN+
I
L-ch analog signal positive input from the M61512FP (IC607)
31
RIN–
I
R-ch analog signal negative input from the M61512FP (IC607)
32
RIN+
I
R-ch analog signal positive input from the M61512FP (IC607)
33
DZF2
O
Zero input detection terminal Not used (open)
34
VCOM
O
Common voltage output terminal
Large external capacitor is used to reduce power supply noise
Large external capacitor is used to reduce power supply noise
35
VREFH
I
Reference voltage (+5V) input terminal
36
AVDD
—
Power supply terminal (+5V) (analog system)
37
AVSS
—
Ground terminal (analog system)
38
DZF1
O
Zero input detection terminal Not used (open)
39
MCLK
I
Master clock signal input from the CXD9617R (IC601)
40
P/S
I
Parallel/serial selection signal input terminal
“L”: serial control mode, “H”: parallel control mode (fixed at “H” in this set)
“L”: serial control mode, “H”: parallel control mode (fixed at “H” in this set)
41
DIF0
I
Audio data interface format terminal Fixed at “L” in this set
42
DIF1
I
Audio data interface format terminal Fixed at “H” in this set
43, 44
LOOP0, LOOP1
I
Loop back mode setting terminal Fixed at “L” in this set
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