MSM7502 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM7502

Multi-Function PCM CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7502

BLOCK DIAGRAM

TPAO TPBI MPAI MPAO MPBI MPBO MLDYI

20 dB

VOL 9

TPAI

+

+

–

VOL 8

+

CAO

R1I

VOL 10

–

SW 1

SW 2

SW 7

SW 16

0 dB

5.7 dB

VOL 3

VOL 4

PLL

TO CAI

–

AIN

m/A

CODEC

SW 12

AOUT

R2I

SW 9 0 dB

RPO

–

RMI

RMO0

RMO1

–

0 dB

VOL 1

VOL 2

SW 3

SW 4

–8.7 dB SW 17

0 dB

VOL 7

SW 14

SW 13

SW 5

–

SW 5

SPI

SW 10 VOL 6

0 dB

SW 6

–3 dB SW 8

–

–6.8 dB SW 18

VOL 5 SW 21

–22 dB SW 15

SPO

–

VOL 11 SW 11

VOL 12 SW 20

PB GEN.

R-TONE GEN.

400

425

440

450

400*16

400*20

F-TONE GEN.

1 kHz

S-TONE GEN.

WAMBLE TONE

1000 Hz

800 Hz

400 Hz

Latch

VLCD GEN.

SA0

VOL 13

SA1

SW 19

SG GEN.

KEY INTF

SCANNING OUTPUT SCANNING INPUT

VA VD AG DG

SGT SGC

PO0 to PO7

PI0 to PI7

PCMOUT

PCMIN

BCLOCK

XSYNC

RSYNC

WRN

RDN

CEN

RESETN

D0 to D7

AD0

AD1

INTT

TIMEN

LA

LB

LML

VLCD

2/35

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