| 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. 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) APPLICATION Feature phones, cordless phones and stand-alone product |
