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UPD9903

Part Number	UPD9903
Manufacturer	NEC
Description	UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
Published	Apr 16, 2005
Detailed Description	DATA SHEET MOS INTEGRATED CIRCUIT µPD9903 µPD9903 ANALOG SUBSCRIBER LINE LSI (DIGITAL CODEC) The µPD9903 is a digita...
Datasheet	UPD9903 PDF File

Overview

DATA SHEET MOS INTEGRATED CIRCUIT µPD9903 µPD9903 ANALOG SUBSCRIBER LINE LSI (DIGITAL CODEC) The µPD9903 is a digital CODEC that can be used in analog subscriber circuits such as private branch exchangers (PBXs) and switching equipment for central offices.
It features three of the functions required for analog subscriber circuits: 2W/4W conversion, CODEC supervision, and subscriber line supervision.
Use of the µPD9903 in combination with a BS-SLIC (µPC7073) can reduce the number of components required in analog subscriber circuits.
FEATURES • Single-chip monolithic LSI (CMOS) • PCM CODEC → oversampling-type A/D and D/A converters • Programmable functions • Termination impedance • Hybri...

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