AG8889
CALL WAITING DECODER
I.
GENERAL DESCRIPTION
This is a new version of Call Waiting service decoder on the telephone. Call Waiting service works by alerting
a customer engaged in a telephone call to a new incoming call. This way 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
signal and generate a valid signal 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 Signal Detector
Good talkdown and talkoff performance
Sensitivity compensated by adjusting input OP gain
Package series --- 14-pin DIP or 16-pin SOP (150 mil)
AG8889AP for 14-pin DIP
AG8889N for 16-pin SOP (150 mil)
III. APPLICATION
• Feature phones
• Cordless phones
• Adjunct unit (stand alone)
IV. PIN CONFIGURATION
AG8889AP
TIP
RING
OPO
VREF
NC
PWD
VSS
1
2
3
4
5
6
7
14
13
12
11
AG8889N
VDD
DO
NC
NC
NC
OSCI
OSCO
TIP
RING
OPO
VREF
NC
PWD
VSS
NC
1
2
3
4
5
6
7
8
16
15
14
13
VDD
DO
NC
NC
NC
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 ]
