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PEB2096

ICs for Communications Octal Transceiver for UPN Interfaces OCTAT-P

Siemens AG 

PEB 2096

SICOFI®-4

The programmable Signaling and CODEC Filter with 4 channels, PEB 2465, implements

4 t/r (a/b) interfaces to link analog voice terminals to PBX subscriber lines or analog PBX

trunk lines to public switches. An integrated Digital Signal Processor handles all the

algorithms necessary, e.g. transhybrid-loss adaption, gain, frequency response,

impedance matching. The IOM-2 Interface handles digital voice transmission, SICOFI-4

feature control and transparent access to the SICOFI-4 command and indication pins.

To program the filters, precalculated sets of coefficients are downloaded from the

system to the on-chip coefficient RAM. Thus it is possible to use the same line card in

different countries.

The SICOFI-4 is a CMOS device offered in a P-MQFP-64 package.

ISDN-Oriented Modular Interface (IOM®-2)

The IOM-2 interface is a four-wire interface which has been defined by the “Group of

Four”: ALCATEL, Siemens, Plessey and ITALTEL systems houses. It became a

standard interface for interchip communication in ISDN applications.

All ICs described above are compatible to the IOM-2 interface and operate from a single

5 V power supply (incl. SICOFI-4).

Semiconductor Group

7

01.96

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