PBL38573 - Speech Circuit for constant current feeding systems

Product Overview

Ericsson

Part number	PBL38573
Manufacturer	Ericsson
File Size	324.00 KB
Description	Speech Circuit for constant current feeding systems
Datasheet	PBL38573 Datasheet
Additional preview pages of the PBL38573 datasheet.

PBL 38573 is a monolithic integrated speech transmission circuit for use in electronic telephones.

It is intended specially for telephone lines with constant current feed.

Maximum line current less than 130 mA in DIL package (100 mA in SO package).

Minimum number of external components for function,with one filtered DC-supply. 6 capacitors and 10 resistors. Easy adaption to various market needs. Mute control input for operation with DTMF - generator. Transmitter and receiver gain regulation for automatic loop loss compensation. Disconnectable. Extended current and voltage range 5 - 130mA (DIP), down to 2 V. Differential microphone input for good balance to ground. Balanced receiver output stage. Stabilized DC - supply for low cu.

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Published: Mar 22, 2005 |