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L3234 - HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS

Datasheet Summary

Description

The L3234/L3235 is a highly integrated SLIC KIT targeted to PABX and key system applications The kit integrates the majority of functions required to interface a telephone line.

Features

  • of the broths function: - Battery Feed (Balanced Mode) - Ringing Injection - Signalling Detection - Hybrid Function The Kit comprises 2 devices, the L3234 ringing injector fabricated in Bipolar in 140V Technology. Its function is to amplify and inject in balanced mode with zero crossing the ringing signal. The device requires an external positive supply of 100V and a low level sinusoid of approx. 950mVrms. The L3235 Line Feeder is integrated in 60V Bipolar Technology. The L3235 provides battery.

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Datasheet Details

Part number L3234
Manufacturer STMicroelectronics
File Size 457.05 KB
Description HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS
Datasheet download datasheet L3234 Datasheet
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Full PDF Text Transcription

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L3234 L3235 HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS HIGHLY INTEGRATED SUBSCRIBER LINE INTERFACE KIT FOR PABX AND KEY SYSTEM APPLICATIONS IMPLEMENTS ALL KEY ELEMENTS OF THE BORSCHT FUNCTION INTEGRATED ZERO CROSSING BALANCED RINGING INJECTION ELIMINATES EXTERNAL RELAY AND CENTRALISED RINGING GENERATOR ZERO NOISE INJECTED ON ADJACENT LINES DURING RINGING SEQUENCE LOW POWER IN STANDBY AND ACTIVE MODES BATTERY FEED WITH PROGRAMMABLE LIMITING CURRENT PARALLEL LATCHED DIGITAL INTERFACE SIGNALLING FUNCTIONS (OFF HOOK, GND-KEY) LOW NUMBER OF EXTERNAL COMPONENTS INTEGRATED THERMAL PROTECTION INTEGRATED OVER CURRENT PROTECTION 0°C TO 70°C: L3234/L3235 -40°C TO 85°C: L3234T/L3235T HEPTAWATT ORDERING NUMBER: L3234 PLCC28 ORDERING NUMBER: L3235 DESCRIPTION The L3234/L
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