Overview

The PSB 2168 provides a solution for an embedded answering in an IOM?-2 based system.

The chip features recording by DigiTape?, a family of high performance algorithms. Messages recorded with DigiTape? can be played back with variable speed without pitch alteration. Messages recorded with a higher bitrate can be converted into messages with a lower bitrate arbitrarily. Current members of DigiTape (TM) span the range from 3.3 kbit/s to 10.3 kbit/s.

特性 Features

Digital Functions

? High performance recording by DigiTape?

? Selectable compression rate (3.3 kbit/s, 10.3 kbit/s)

? Variable playback speed

? Support for ARAM or Flash Memory

? Optional voice prompt EPROM

? DTMF generation and detection

? Call progress tone detection

? Caller ID recognition

? Direct memory access

? Real time clock

? Equalizer

? Automatic gain control

? Automatic timestamp

? Auxiliary parallel port

? Ultra low power refresh mode

General Features

? SSDI/IOM?-2 compatible interface

? Serial control interface for programming

? Master clock generation for common codecs