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.

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