Table of Contents
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IC BLOCK DIAGRAM & DESCRIPTION
IC871 PCM1748E (Digital to Analog converter)
BCK
1
LRCK
3
Audio
Serial
Port
DATA
2
ML 15
Serial
MC 14
Countrol
Port
MD 13
System Clock
SCK 16
Manager
PIN ASSIGNMENTS
PIN
NAME
TYPE
1
BCK
IN
2
DATA
IN
3
LRCK
IN
4
DGND
-
5
V
-
DD
6
V
-
CC
7
V
L
OUT
OUT
8
V
R
OUT
OUT
9
AGND
-
10
V
-
COM
11
ZEROR/ZEROA
OUT
12
ZEROL/NA
OUT
13
MD
IN
14
MC
IN
15
ML
IN
16
SCK
IN
IC340 LM4700TF (30W Audio Power Amplifier)
Oversampling
Digital Filter
with
Function
Controller
Zero Detect
12
11
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.
11
STANDBY
10
V
+
IN
9
V
-
IN
8
MUTE
7
GND
V
6
NC
5
NC
4
V
EE
3
OUTPUT
2
NC
1
V
CC
DAC
Enhanced
Multi level
Delta Sigma
Modulator
DAC
Power Supply
5
4
Y
V
+
10
IN
V
-
9
IN
- 33 -
Output Amp and
Low-pass Filter
Output Amp and
Low-pass Filter
6
9
Vcc
1
3
OUTPUT
4
7
V
GND
EE
V
L
7
OUT
10
V
COM
8
V
R
OUT
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