ASAHI
KASEI
[AK2305]
CONTENTS
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
AKM [ ASAHI KASEI MICROSYSTEMS ]
