KS8630D

KS8630D is a Low power mixed signal CMOS integrated circuit for receiving a physical layer signals used in the Calling Line Identification Presentation (CLIP) of British Telecom system, the Calling Identity Delivery(CID) of Bellcore system, and similar evolving systems before the call is put through. It can also satisfy the requirements of CIDCW (Calling Identity Delivery on Call Waiting) services including very high precision  detection of CAS (CPE Alerting Signal) tone and the signals used in similar services when the call has already been put through.

KS8630D carries out the following features : Ring or Line-reversal detection, CAS ( 2130Hz and 2750Hz) Tone etection, and 1200-baud FSK demodulation which simultanesouly satisfies the BELL202 and the CCITT ( ITU-T ) V.23 specification. The demodulated data for Caller Identification is transmitted serially to the related u-controller.

KS8630D using a patented digital algorithm to detect demodulated FSK signals and CAS signal detection.

The device also has a built-in Automatic Gain Control circuitry which is capable of very high precision detection of CAS tone. It is suitable for use in Adjunct Boxes or Feature Phones with CID / CIDCW applications.