FX633

1.0 Features CML Semiconductor Products Call Progress Tone Detector FX633 D/633/3 March 1996 Provisional Issue Worldwide Tone Compatibility Single and Dual Tones Detected Special US Busy-Detect Output Special Voice-Detect Output Wide Dynamic Signal Range Low Voltage Operation Standard 8-Pin DIP Package Standard 3.58MHz Xtal 1.1 Brief Description The FX633 detects the audible tone signals used by most of the world's Telecom Systems to indicate Dial, Ringing, Busy and other conditions found when placing a call. Detection of these call progress stages is essential to the proper operation of automatic calling products. The FX633 adds new features to Call Progress monitoring. It detects and indicates separately the "US Busy" tones, reducing the need to measure "tone cadence" to identify "US Busy". It detects and separately indicates "Voice" and other signals from Call Progress tones, reducing voice-falsing and adding voice-answer as a connection prompt. T...