msm7717 Oki Semiconductor, msm7717 Datasheet - Page 16

• Manufacturer Part Number: msm7717
• Description: Msm7717-01/02/03single Rail Codec
• Manufacturer: Oki Semiconductor

Analog inverted output*
¡ Semiconductor
APPLICATION CIRCUIT
* These output signals have amplitudes above and below the offset level of V
FREQUENCY CHARACTERISTICS ADJUSTMENT CIRCUIT
Analog output*
Analog input
+3 V
M
0 V
Microphone amp
0 to 10 W
C1
R5
10 mF
+
C2
C4
0.1 mF
R3
51 kW
R1
0.1 mF
51 kW
R2
R4
C3
1 mF
AIN–
GSX
AIN+
SG
AOUT+
AOUT–
PWI
VFRO
AIN–
GSX
AIN+
SG
AOUT+
AOUT–
PWI
VFRO
SGC
AG
V
MSM7717-XX
DD
MSM7717-01
PCMOUT
RSYNC
XSYNC
PCMIN
ALAW
BCLK
PDN
DG
Transmit frequency
characteristic
Adjustment determined by
C1, C2, R1 and R2
Receive frequency
characteristic
Adjustment determined by
C3, C4, R3 and R4
+3 V
MSM7717-01/02/03
PCM signal output
8 kHz SYNC signal input
PCM shift clock input
PCM data
Control of companding law
1: A-law
0: m-law
Power down control input
1: Normal operation
0: Power down
DD
/2.
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