PBL3798 Subscriber Line Interface Circuit

Ericsson

Description

March 1997 www.DataSheet4U.com PBL 3798, PBL 3798/2 Subscriber Line Interface Circuit .
PBL 3798 is an analog Subscriber Line Interface Circuit (SLIC), which is fabricated in a 75 V bipolar, monolithic process.

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Datasheet Specifications

Part number: PBL3798
Manufacturer: Ericsson
File Size: 237.55 KB
Datasheet: PBL3798_Ericsson.pdf
Description: Subscriber Line Interface Circuit

Features

* On-chip switch mode regulator to minimize power dissipation
* Programmable, constant current feed
* Line feed characteristics independent of battery variations
* Tip-ring polarity reversal function
* Tip and ring open circuit state; tip open with ring active

Applications

* with -63 V < VBat < -56 V, the saturation guard reference voltage, VSGRef, should be adjusted by calculating a value for resistor RSG as described in the text. Note that the adjustment terminal, RSG, is available only on the 44-pin leaded chip carrier package. VBat should be applied with a ∂VBat/∂t

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PBL3798 Subscriber Line Interface Circuit Ericsson

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