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PBL3853

Part Number	PBL3853
Manufacturer	Ericsson
Description	Universal Speech Circuit
Published	Mar 22, 2005
Detailed Description	May 1996 PBL 3853 Universal Speech Circuit Description The PBL 3853 is a biopolar integrated speech circuit with speci...
Datasheet	PBL3853 PDF File

Overview

May 1996 PBL 3853 Universal Speech Circuit Description The PBL 3853 is a biopolar integrated speech circuit with specific parameters making it highly suitable to be used as a line interface and speech circuit in a telephone line powered electronic payphone.
Emphasis has been put on low current consumption in the IC thus facilitating that a greater part of the available line current can be used to power other electrical functions in the design.
From a minimum line current of 16 mA, 12 mA at 4.
5 V can be used to power auxiliary functions.
The circuit can optionally create an active impedance towards the telephone line, set by external passive components, to reduce the current consumption for...

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