General Description

The HT9032 calling line identification receiver is a low power CMOS integrated circuit designed for receiving physical layer signals transmitted according to Bellcore TR-NWT-000030 and ITU-T V.23 specifications. The primary application of this device is for products used to receive and display the calling number, or message waiting indicator sent to subscribers from the central office facilities. The device also provides a carrier detection circuit and a ring detection circuit for easier system applications.

Features

Operating voltage: 3.5V~5.5V

Bell 202 FSK and V.23 demodulation

Ring detection input and output

Carrier detection output

Power down mode

High input sensitivity

HT9032C: 16-pin DIP/SOP package

HT9032D: 8-pin DIP/SOP package

Applications

Feature phones

Caller ID adjunct boxes

Fax and answering machines

Computer telephony interface products

ADSI products