msm7603 Oki Semiconductor, msm7603 Datasheet - Page 17

• Manufacturer Part Number: msm7603
• Description: Echo Canceler
• Manufacturer: Oki Semiconductor

PWDWN
¡ Semiconductor
APPLICATION CIRCUIT
Bidirectional Connection Example
RST
CLK
Microphone input
Speaker output
R4
DV
DV
C1
25
26
16
18
12
20
28
4
5
9
8
6
DV
R1=20 kW
R2=20 kW
R3=2.2 kW
R4=10 kW
R9=10 kW
Use the MSM7704-01GS-VK as a PCM CODEC when V
The MSM7533 is pin compatible with the MSM7704.
SIN
ROUT
SYNC
SCK
SYNCO
SCKO
PWDWN
RST
CLKIN
V
V
V
DD
DD
DD
R1
For cancelation of
MSM7603/7603B
acoustic echo
+
R3
C2
C3
DV
V
(TEST)
V
(m / A)
R2
SOUT
DD
SS
ADP
NLP
HCL
ATT
RIN
V
V
V
HD
(P)
(P)
GC
SS
SS
SS
C1=1 mF
C2=10 mF
C3=0.1 mF
C4=0.1 mF
21
22
13
12
14
10
16
19
27
24
1
2
3
19
17
10
11
21
13
14
7
15
23
4
5
6
AIN1
GSX1
AOUT1
DOUT1
DIN1
XSYNC
RSYNC
BCLK
A / m
PDN
CHP
MSM7533VGS-K
DV
DV
C4
2ch CODEC
R9
DV
R10
DOUT2
AOUT2
GSX2
DIN2
AIN2
SGC
DV
V
C8
DV
AG
DG
DD
27
24
19
17
10
11
21
13
14
15
23
24
23
2
14
11
8
1
18
9
R5=20 kW
R6=20 kW
R7=2.2 kW
R8=10 kW
R10=10 kW
For cancelation of line echo
1
2
3
7
SOUT
RIN
NLP
HCL
ADP
ATT
GC
HD
(m / A)
(TEST)
V
V
V
V
V
C9
DD
SS
SS
SS
SS
MSM7603/7603B
(P)
(P)
R6
+
DD
C10 C11
C6
C7
R7
3 V is used.
(AG)
PWDWN
+
SYNCO
CLKIN
ROUT
AV
SYNC
SCKO
C5=1 mF
C6=10 mF
C7=0.1 mF
C8=0.1 mF
C9=0.1 mF
C10=10 mF
C11=0.1 mF
SCK
RST
V
V
V
SIN
R5
DD
DD
DD
DV
25
26
4
5
16
18
9
8
12
6
20
28
C5
MSM7603/7603B
DV
DV
R8
Line input
Line output
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