CMX683 Overview
The CMX683 is a general purpose Call Progress tone detector for use in monitoring the progress of calls in Public Switched Telephone System (PSTN) applications. Dial Tone, Ringing, Busy and Not Available states can be distinguished by using the host µC to qualify the cadence of the CP DETECT output. The CMX683 uses advanced digital techniques to characterise valid Call Progress tones, unwanted tones, line noise and...
CMX683 Key Features
- Detects Single and Dual Call Progress Tones
- Worldwide Call Progress Tone patibility
- "Voice" Detect Outputs (Fast and Slow)
- Wide Dynamic Range with Low Falsing
- Low Power Operation: 600µA at 3.0V typ
- 3.58MHz Xtal/Clock Oscillator