PBL38573 Datasheet Speech Circuit For Constant Current Feeding Systems

Manufacturer: Ericsson

Overview: PBL 385 73 June 1999 PBL 385 73 Speech Circuit for constant current feeding.

Datasheet Details

Part number	PBL38573
Manufacturer	Ericsson
File Size	324.00 KB
Description	Speech Circuit for constant current feeding systems
Datasheet	PBL38573_Ericsson.pdf

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.

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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