MSM7731-02 OKI [OKI electronic componets], MSM7731-02 Datasheet - Page 50

• Manufacturer Part Number: MSM7731-02
• Description: Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free
• Manufacturer: OKI [OKI electronic componets]

APPLICATION CIRCUIT (1)
1 Semiconductor
Line
RESET
In case of line analog interface and pin control
(NCSEL = 13.5 dB, NCPAD = 6 dB, TRAD = 9 dB)
telephone
Interface
Portable
0.1µF
0.1 µF
1 µF
3 V(D)
3 V(D)
0.1 µF
20 k
20 k
20 k
+
3 V(A)
10 µF
+
10 µF
10 µF
20 k
+
LVFRO
LPWI
LOUT
LGSX
LIN
SYNC
BCLK
PCMI
PCMO
PCMEI
PCMEO
DEN
EXCK
DIN
DOUT
PDN/RST
RST
CLKSEL
SYNCSEL
TEST1
TEST2
TEST3
TEST4
TEST9
DVDD1
DVDD2
DGND1
DGND2
AVDD
AGND
SG
10 pF
MCK/X1 X2
MSM7731-02
10 µF
19.2 MHz
1 M
GLPADTHR
MCUSEL
NCPAD1
NCPAD2
PCMSEL
SLPTHR
NCSEL1
NCSEL2
LINEEN
AVFRO
RPAD1
RPAD2
RPAD3
RPAD4
ECSEL
TPAD1
TPAD2
TPAD3
TPAD4
10 pF
AOUT
AGSX
ATHR
LTHR
APWI
AATT
LATT
AGC
AHD
LGC
LHD
AIN
20 k
20 k
20 k
3 V(D)
3 V(D)
1 k
3 V(D)
1 µF
FEDL7731-02-04
MSM7731-02
amplifier
Speaker
10 k
50/53
MIC
Rotary
switch
SP