Datasheet > LE79R241QCT

LE79R241QCT

更新时间： 2024-12-01 21:16:39

品牌	Logo	应用领域
加拿大卓联 - ZARLINK		电池电信电信集成电路
页数	文件大小	规格书
31页	240K
描述
SLIC, Bipolar, 8 X 8 MM, MO-220, QFN-32

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LE79R241QCT 数据手册

Le79R241

Intelligent Subscriber Line Interface Circuit

Ve790 Series

Data Sheet

Document ID#: 080249

Version 3

May 2011

Features

•

Monitor of two-wire interface voltages and

currents supports

Ordering Information

Device

Package^1,2

Packing³

•

Voice transmission

Le79R241JC

Le79R241DJC

Le79R241QC

32 Pin PLCC

32 Pin PLCC (Green) Tubes

32 Pin QFN Trays

Tubes

Programmable DC feed characteristics

Independent of battery

Current limited

1. Due to size constraints, QFN devices are marked by omitting the

“Le” prefix. For example, Le79R241QC is marked 79R241QC.

2. The green package meets RoHS Directive 2002/95/EC of the Eu-

ropean Council to minimize the environmental impact of electrical

equipment.

•

Selectable off-hook and ground-key

thresholds

3. For delivery using a tape and reel packing system, add a "T" suffix

to the OPN (Ordering Part Number) when placing an order.

Subscriber line diagnostics

Leakage resistance

Loop resistance

Applications

Line capacitance

Bell capacitance

•

Enables a cost effective voice solution for long or

short loop applications providing POTS and

integrated test capabilities

Foreign voltage sensing

•

Power cross and fault detection

DLC

•

Supports internal short loop or external ringing

+5 V and battery supplies

PBX/KTS

Pair Gain

Dual battery operation for system power saving

•

Automatic battery switching

Description

Intelligent thermal management

The Le79R241 Intelligent Subscriber Line Interface

Circuit (ISLIC™) device, in combination with a VE790

series ISLAC™ device, implements the telephone line

interface function. This enables the design of a low

cost, high performance, fully software programmable

line interface for multiple country applications

worldwide. All AC, DC, and signaling parameters are

fully programmable via microprocessor or GCI

interfaces on the VE790 series ISLAC device.

Additionally, the Le79R241 ISLIC device has

integrated self-test and line-test capabilities to resolve

faults to the line or line circuit. The integrated test

capability is crucial for remote applications where

dedicated test hardware is not cost effective.

•

Compatible with inexpensive protection networks

•

Accommodates low tolerance fuse resistors or

PTC thermistors

Metering capable

•

12 kHz and 16 kHz

Smooth polarity reversal

•

Tip-open state supports ground start signaling

Integrated test load switches/relay drivers

5 REN with DC offset trapezoid.

•

For US standard:

drives ring up to 4.4 kft of 26 gauge wire.

drives ring up to 7 kft of 24 gauge wire.

For European (British) standard:

drives ring up to 1.7 km of 0.5 mm copper cable.

•

Space Saving Package Options (8 x 8 QFN)

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

12 3 4 5 6 7...31

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与LE79R241QCT相关器件

型号	品牌	获取价格	描述	数据表
LE79R251JC	ETC	获取价格	Telecommunication IC
LE79R70-1DJCT	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32, GREEN, PLASTIC, MS-016, LCC-32
LE79R70-1FQC	MICROSEMI	获取价格	SLIC, Bipolar, GREEN, MO-220, QFN-32
LE79R70-1JC	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32,
LE79R70-1JCT	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32,
LE79R70DJCT	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32, GREEN, PLASTIC, MS-016, LCC-32
LE79R70JC	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32,
LE79R70JCT	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32,
LE79R70QC	MICROSEMI	获取价格	SLIC, Bipolar, MO-220, QFN-32
LE79R70QCT	MICROSEMI	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC32,

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