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 • • • • • • • 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 detect...

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