Brief Description
The CMX602B is a low power CMOS integrated circuit for the reception of the physical layer signals used in BT's Calling Line Identification Service (CLIP), Bellcore's Calling Identity Delivery System (CID), the Cable Communications Association's Caller Display Services (CDS), and similar evolving systems. It also meets the requirements of emerging Caller Identity with Call Waiting services (CIDCW).
The device includes a 'zero-power' ring or line reversal detector, a dual-tone (2130Hz plus 2750Hz) Tone Alert Signal and a 1200-baud FSK V23/Bell202 compatible asynchronous data demodulator with a data retiming circuit which removes the need for a UART in the associated µController.

FEATUREs
• CLI and CIDCW System Operation
• Low Power Operation 0.5mA at 2.7V
• Zero-Power Ring or Line Reversal Detector
• FSK Demodulator with Data Retiming
• High Sensitivity CAS Tone Detection
• Low CAS Tone Falsing in CIDCW Mode

APPLICATIONs
• CLI and CIDCW Adjunct Boxes
• CLI and CIDCW Feature Phones
• Bellcore, ETSI, British Telecom and Mercury Systems
• Computer Telephone Integration
• Call Logging Systems
• Voice-Mail Equipment