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