L3845 Datasheet - STMicroelectronics

Datasheet Details

Part number:

L3845

Manufacturer:

STMicroelectronics ↗

File Size:

470.48 KB

Description:

TRUNK INTERFACE

® L3845 TRUNK INTERFACE ON CHIP POLARITY GUARD MEETS DC LINE CHARACTERISTICS OF EITHER CCITT AND EIA RS 464 SPECS PULSE FUNCTION HIGH AC IMPEDANCE OFF HOOK-STATUS DETECTION OUTPUT LOW EXTERNAL COMPONENT COUNT DESCRIPTION The circuit provides DC loop termination for analog trunk lines.

The V-I chara

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L3845, TRUNK INTERFACE

The circuit provides DC loop termination for analog trunk lines.

The V-I characteristics is equivalent to a fixed voltage drop (zener like characteristic) in series with an external resistance that determines the slope of the DC characteristic.

An external low voltage electrolytic capacitor causes t

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