AK2305 查看數據表（PDF） - Asahi Kasei Microdevices

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AK2305

Dual PCM CODEC for ISDN TERMINAL ADAPTER

Asahi Kasei Microdevices 

ASAHI KASEI

CONTENTS

[AK2305]

ITEMS

PAGE

- BLOCK DIAGRAM….…………..……………………… 3

- PIN ASSIGNMENT….……………………………..…… 4

- PIN CONDITION……...………………………………… 5

- PIN FUNCTION…….…………………………………… 6

- CIRCUIT DESCRIPTION….….……………………...… 8

- FUNCTIONAL DESCRIPTION…….…..……………… 9

- PCM INTERFACE……….…………………….... 9

LONGFRAME/SHORTFRAME……….…… 10

GCI……………………………………..…….. 12

IDL…………………………………………….. 13

RESET…………………………………..…… 14

- POWER DOWN……..……………………..…… 15

- MUTE…………………………………….……… 17

- GAIN ADJUSTMENT….…..…………………… 18

- DTMF RECEIVER……………………………… 19

- TONE GENERATOR…………………..………. 21

- AUX INPUT…….……………………………….. 21

- SERIAL INTERFACE………….………….…… 22

- REGISTER……….……………………………………… 25

- ABSOLUTE MAXIMUM RATINGS……..…………..… 28

- RECOMMENDED OPERATING CONDITIONS…….. 28

- ELECTRICAL CHARACTERISTICS……..………...… 28

- APPLICATION CIRCUIT EXAMPLE…..…………...…39

- PACKAGE INFORMATION……..…………………..… 42

C0029-E-02

2

1999/8

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