AG8888
CALL WAITING DECODER
I.
GENERAL DESCRIPTION
This is a Call Waiting decoder used on the telephone. Call Waiting service works by alerting a customer engaged
in a telephone call to a new incoming call. Thus, the customer can still receive important calls while engaged in
a current call. The Call Waiting decoder can detect dual-tone (2130Hz and 2750Hz) alert tone and generate a
valid timing on the data pins for micro controller.
II.
FEATURES
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Compatible with Bellcore special report SR-TSV-002476
3.6V ~ 6.0V supply voltage
Call-Waiting (2130Hz plus 2750Hz) alert tone detector
Sensitivity compensated by adjusting OP Amp
Internal buffer
Detection block for alert tone detected and digital algorithm detection
Package series --- 14-pin DIP or 16-pin SOP (150 mil)
AG8888AP for 14-pin DIP
AG8888N for 16-pin SOP (150 mil)
III. APPLICATION
Feature phones, cordless phones and stand-alone product
IV. PIN CONFIGURATION
AG8888AP
TI/RI
BO
F1
AVSS
OE
NC
DVSS
1
2
3
4
5
6
7
14
13
12
11
AG8888N
OPO
AVDD
DO
NC
DVDD
OSCI
OSCO
TI/RI
BO
F1
AVSS
OE
NC
DVSS
NC
1
2
3
4
5
6
7
8
16
15
14
13
OPO
AVDD
DO
NC
DVDD
OSCI
OSCO
NC
10
9
8
12
11
10
9
* This specification are subject to be changed without notice.
8.8.2000
1
EMC [ ELAN MICROELECTRONICS CORP ]
