msm7708-02 Oki Semiconductor, msm7708-02 Datasheet - Page 37

• Manufacturer Part Number: msm7708-02
• Description: Serial Register Interface Adpcm Codec For Telephone Recording
• Manufacturer: Oki Semiconductor

Voice analog input (V
Transmit gain (V
= (R2/R1) ¥ (R4/R3)
Receive gain (V
= 2 ¥ R6/R5
Receiver output
Sounder output
O
GSX2
/V
VFRO
/V
I
)
1 mF
I
)
)
1 mF R1
1 mF R3
10 mF
Z
350
control
L
Basic
1 mF
R6
= 120 nF +
W
R2
R4
R5
1 mF
+
–
10 mF
V
SGT
SGR
AG
DG
AIN1+
AIN1–
GSX1
AIN2
GSX2
VFRO
PWI
AOUT–
AOUT+
SAO
MCK
PDN
RESET
EXCK
DEN
DIN
DOUT
DD
MSM7708
PCMRO
PCMSO
PCMRI
XSYNC
YSYNC
PCMSI
RWCK
MUTE
VOXO
MLV1
MLV2
MLV3
BCLK
VOXI
SAD
SAS
TAS
CS1
CS2
DIO
WE
IS
IR
500 W
ADPCM
ADPCM
transmit data
ADPCM
receive data
control
DIN
DOUT
WE
SAD
SAS
TAS
RWCK
RFSH
FAM
TEST
TEST
RS/A
CS
1 Mb serial register
MSM63V89C
1 Mb serial voice ROM
DOUT
SADX
SASX
TAS
RDCK
SASY
SADY
TEST
TEST
CS
MSM6595A-XXX