msm7540 Oki Semiconductor, msm7540 Datasheet - Page 14

• Manufacturer Part Number: msm7540
• Description: Single Rail Adpcm Codec
• Manufacturer: Oki Semiconductor

¡ Semiconductor
APPLICATION CIRCUIT
Transmit ADPCM Output
Receive Analog Output
Transmit Analog Input
Receive ADPCM Input
(Push-Pull)
V
DD
Receive
PCM Output
Transmit
PCM Output
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RES
PCMRI
PCMRO
IR
IS
PCMSI
PCMSO
LPS
DG
AG
SG
AIN1
GSX1
AIN2
MSM7540/7560GS
RSYNC
XSYNC
AOUT+
AOUT–
BCLKB
BCLKA
VFRO
GSX2
MCK
PDN
PWI
V
X2
X1
DD
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
DD
10.368 MHz
Power Down Input
ADPCM Algorithm
Reset Input
Shift Clock Input for
PCM, ADPCM Data
(64 kHz to 2048 kHz)
8 kHz Sync Signal Input
MSM7540/7560
FEDL7540-03
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