MSM7732-01 OKI [OKI electronic componets], MSM7732-01 Datasheet - Page 23

• Manufacturer Part Number: MSM7732-01
• Description: Audio CODEC
• Manufacturer: OKI [OKI electronic componets]

APPLICATION CIRCUIT
OKI Semiconductor
C4
R1
C1
Hands Free Kit
C5
0.1 µ F
R2
C2
R4
C3
R3
AMPAO
AMPAI
Mic
AIN –
SWD
AIN+
SWE
GSX
NC
NC
NC
SG
NC
10
11
12
1
2
3
4
5
6
7
8
9
GND
20 k Ω
VREF
20 k Ω
A/D
20 k Ω
D/A
10 µ F
Slope
C9
Filter
V
DD
LPF
32 Ω
C6
BPF
V
DD
R5
Detect
Voice
32 Ω
R6
C7
TONE / DTMF
MCU I/F
Compand
32 Ω
PCM
Gen
Expand
PCM
NC
EXCK
PCMOUT
PCMIN
SYNC
NC
BCLK
PDN
NC
AG2
NC
NC
36
35
34
33
32
31
30
29
28
27
26
25
GND
Speaker
FEDL7732-01-10
MSM7732-01
Earphone
23/29
IN
OUT