1* This specification are subject to be changed without notice.
AG8888
CALL WAITING DECODER
8.8.2000
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
• 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
DVSS
OPO
AVDD
OSCI
OSCO
14
13
12
11
9
1
2
3
4
5
6
78
F1
BO
AVSS
10OE
NC
DO
NC
DVDD
TI/RI
AG8888AP
DVSS
OPO
AVDD
OSCI
OSCO
16
15
14
13
11
1
2
3
4
5
6
710
F1
BO
AV S S
12OE
NC
NC NC89
DO
NC
DVDD
TI/RI
AG8888N