Sanyo DC-PT100, Руководство по обслуживанию

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IC BLOCK DIAGRAM & DESCRIPTION
IC340 LM4700TF (30W Audio Power Amplifier)
IC871 PCM1748E (Digital to Analog 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
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
11
10
9
8
7
6
5
4
3
2
1
STANDBY
V
IN
+
V
IN
-
MUTE
GND
NC
NC
V
EE
OUTPUT
NC
V
CC
V
LM4700
Y
10
1
3
V
IN
+
9 V
IN
-
OUTPUT
4
V
EE
7
GND
Vcc
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 decoupling.
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