User Guide

23
23
D-MS3
PCM1742(IC305)
PCM2702(IC701)
74HC151(IC309)
BCK
DATA
LRCK
DGND
V
DD
V
CC
V
OUT
L
V
OUT
R
SCK
ML
MC
MD
ZEROL/NA
ZEROR/ZEROA
V
COM
AGND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PCM1742
XTI
V
DD
C
DGNDC
V
DD
DGND
D+
D–
V
BUS
DGNDU
PLYBCK
SSPND
ZERO
TEST3
TEST2
XTO
V
CC
P
AGNDP
V
CC
L
AGNDL
V
OUT
L
V
CC
V
COM
AGND
V
OUT
R
AGNDR
V
CC
R
TEST0
TEST1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PCM2702
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8
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5
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5
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5
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Audio
Serial
Port
Output Amp and
Low-Pass Filter
DAC
4x/8x
Oversampling
Digital Filter
with
Function
Controller
Enhanced
Multilevel
Delta-Sigma
Modulator
Output Amp and
Low-Pass Filter
DAC
BCK
LRCK
DATA
ML
MC
MD
Serial
Control
Port
System Clock
Manager
Zero Detect
Power Supply
V
OUT
L
V
COM
V
OUT
R
V
DD
DGND
ZEROL
ZEROR
SCK
System Clock
V
CC
AGND
DAC
DAC
SpAct™
Audio
Clock
Generator
8x
Oversampling
Digital Filter
Multi-
Level
Delta-
Sigma
Modulator
USB
I/F
Low-Pass
Filter
Low-Pass
Filter
Power Supply
Crystal
OSC
FIFO
mclk
System Clock
wrclk
USB
Packet
Data
Audio
Data
V
OUT
L
V
COM
V
OUT
R
rdclk
USB
Clock
Generator
PLYBCK
V
DD
P DGNDPXTI XTO V
CC
AGND V
DD
DGND
D+
D–
V
BUS
V
DD
C
DGNDU
DGNDC
SSPND
ZERO
V
CC
L
AGNDL V
CC
R
AGNDR
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5
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5
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





5

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;
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
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