Sanyo DVD-SL20, Руководство по обслуживанию

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IC BLOCK DIAGRAM & DESCRIPTION
IC871 PCM1748E(D/A Converter)
V
OUT
L 7
V
COM
10
V
OUT
R 8
BCK 1
LRCK 3
DATA 2
ML 15
MC
14
MD 13
SCK 16
ZER
OL
12
ZER
OR
11
V
DD
5
DGND
4
V
CC
6
AG
N
D
9
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TYPE
IN
IN
IN
-
-
-
OUT
OUT
-
-
OUT
OUT
IN
IN
IN
IN
NAME
BCK
DATA
LRCK
DGND
V
DD
V
CC
V
OUT
L
V
OUT
R
AGND
V
COM
ZEROR/ZEROA
ZEROL/NA
MD
MC
ML
SCK
DESCRIPTIONS
Audio data bit clock input.
Audio data digital input.
L-channel and R-channel Audio data latch enable input.
Digital ground.
Digital power supply, +3.3V.
Analog power supply, +5V.
Analog output for L-channel.
Analpg output for R-channel.
Analog ground.
Common voltage decoupting.
Zero flag output for R-channel / Zero flag output for L / R-channel.
Zero flag output for L-channel / No assign.
Mode control data input.
Mode control clock input.
Mode control latch input.
System clock input.
PIN ASSIGNMENTS
Output Amp and
Low-pass Filter
Oversampling
Digital Filter
with
Function
Controller
Audio
Serial
Port
Serial
Countrol
Port
System Clock
Manager
Zero Detect Power Supply
Enhanced
Multi level
Delta Sigma
Modulator
DAC
Output Amp and
Low-pass Filter
DAC
IC872 KIA4558F(OP. Amp)
2
3
4 5
6
8
1
OUT A
-IN A
+IN A
V
EE
V
CC
OUT B
-IN B
+IN B
7
B
A
IC859 NC7SZ157P6(Multiplexer)
I
1
GND
I
0
1
2
3
6
5
4
S
Z
Vcc
Pin Name
I
0
, I
1
S
Z
Description
Data Inputs
Control Inputs
Output
Connection Diagram
Pin Descriptions
(Top View)
1
0