1
* This specification are subject to be changed without notice.
AG8889
CALL WAITING DECODER
8.8.2000
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
• 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
VSS
VDD
DO
OSCI
OSCO
14
13
12
11
9
1
2
3
4
5
6
7
8
OPO
RING
VREF
10
NC
PWD
NC
NC
NC
TIP
AG8889AP
VSS
VDD
DO
OSCI
OSCO
16
15
14
13
11
1
2
3
4
5
6
7
10
OPO
RING
VREF
12
NC
PWD
NC
NC
8
9
NC
NC
NC
TIP
AG8889N