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零件编号
产品描述 (功能)
MSM7718-01 查看數據表(PDF) - Oki Electric Industry
零件编号
产品描述 (功能)
生产厂家
MSM7718-01
Echo Canceler with ADPCM CODEC
Oki Electric Industry
MSM7718-01 Datasheet PDF : 38 Pages
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¡ Semiconductor
APPLICATION CIRCUIT
MSM7718
IS
IR
1
m
F
Voice Analog Input (V
i
)
Transmit Gain (V
GSX2
/V
i
)
= (R2/R1)
¥
(R4/R3)
Receive Gain (V
O
/V
VFRO
)
= 2
¥
R5/R6
Receiver Output V
O
+
–
10
m
F
1
m
F
V
DDD1,2,3
V
DDA
+
SGT
–
10
m
F
SGR
1
m
F
AG
DG1,2,3
1
m
F R1
R2
AIN1+
AIN1–
GSX1
1
m
F R3
R4
R6
R5
AIN2
GSX2
VFRO
PWI
Z
L
= 120 nF +
AOUT–
350
W
AOUT+
Basic
Controller
MCK
PDN
/
RST
PDWN
EXCK
DEN
DIN
DOUT
INT
BCLKA
SYNCA
VOXO
VOXI
PCMPCI
PCMPCO
PCMLNI
PCMLNO
PCMACI
PCMACO
PCMADI
PCMADO
BLKP
SYNCP
A20-19
A18-0
D7-0
WE
OE
RP
CS1
CS2
MSM7718-01
ADPCM
Transmit Data
ADPCM
Receive Data
ADPCM
Control
PCM
Control
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