General Description

The four channel Signal Processing Codec Filter PEB 2466 SICOFI-4-µC is the logical continuation of a well established family of SIEMENS programmable codec-filter-ICs.

Its major difference to the PEB 2465 (SICOFI-4) is the PCM and µC interface, which replaces the IOM-2 interface.

Features

• Single chip programmable CODEC and FILTER to handle four

    – Central Office

    – or PABX-channels

• Specification according to relevant CCITT, EIA and LSSGR recommendations

• Digital signal processing technique

• Serial µ-Controller interface

• 2 programmable PCM-interfaces (up to 8 Mbit/s)

• Programmable interface to electronic SLICs and transformer solutions for signaling information

• High analog driving capability (300 Ω) for direct driving of transformers

• Programmable digital filters to adapt the transmission behaviour especially for

    – AC impedance matching

    – transhybrid balancing

    – frequency response

    – gain

    – A/µ-law conversion

• Single 5 V power supply

• Advanced low power 0.9 µm analog CMOS technology

• Low power consumption (< 35 mW per channel)

• High performance A/D conversion

• High performance D/A conversion

• Advanced test capabilities

    – five digital loops

    – four analog loops

    – two programmable tone generators (DTMF possible)

    – built in self-test

    – level metering function for system tests

• Standard P-MQFP-64 package

• Comprehensive development platform available

    – software for automatic filter coefficient calculation - QSICOS

    – Hardware development board - STSI 2466