Datasheet > LE77D11BTCT

LE77D11BTCT

更新时间： 2024-01-09 23:19:32

品牌	Logo	应用领域
加拿大卓联 - ZARLINK		/
页数	文件大小	规格书
23页	754K
描述
Analog Transmission Interface

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中文翻译

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技术参数
数据手册

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LE77D11BTCT 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

LE77D11BTCT 数据手册

™

Le77D11

Voice Over Subscriber Line Interface Circuit

VE770 Series

APPLICATIONS

ORDERING INFORMATION

An Le78D11 VoSLAC™ device must be used with this part.

Short/Medium Loop: approximately 2000 ft. of 26 AWG,

Device

Le77D112TC

Le77D112BTC

Package

44-pin eTQFP

44-pin eTQFP (Green package)*

and 5 REN loads

Voice over IP/DSL – Integrated Access Devices, Smart

Residential Gateways, Home Gateway/Router

*Green package meets RoHS Directive 2002/95/EC of the European

Council to minimize the environmental impact of electrical equipment.

Cable Telephony – NIU, Set-Top Box, Home Side Box,

Cable Modem, Cable PC

Fiber–Fiber In The Loop (FITL), Fiber to the Home

DESCRIPTION

(FTTH)

Wireless Local Loop, Intelligent PBX, ISDN NT1/TA

The Zarlink Le77D11 dual-channel Voice over Subscriber

Line Interface Circuit (VoSLIC™) device has enhanced and

optimized features to directly address the requirements of

voice over broadband applications. Their common goal is to

reduce system level costs, space, and power through higher

levels of integration, and to reduce the total cost of ownership

by offering better quality of service. The Le78D11/Le77D11 is a

two-device chip set providing a totally software configurable

solution to the BORSCHT functions for two lines. The resulting

system is less complex, smaller, and denser, yet cost effective

with minimal external components. The Le77D11 Dual VoSLIC

device requires only two power supplies: +3.3 VDC and

nominally +12 VDC, but can range from +8 to +40 VDC

depending on the application. A single TTL-level clock source

drives the two switching regulators that generate the required

line voltage dynamically on a “per line” basis. Six

FEATURES

Integrated Dual-Channel Chip set

— Built-in boost switching power supply tracks line voltage

minimizing power dissipation

— Only +3.3 V and +12 V (nominal) required

— Wide range of input voltages (+8 V to +40 V) supported

— Minimum external discrete components

— 44-pin eTQFP package

Ringing

— 5REN

— Up to 90 Vpk, Balanced

— Sinusoidal or trapezoidal with programmable DC offset

Subscriber Loop Test/Self-Test

— GR-909 compliant drop test capability in both

measurements and pass/fail

programmable states are available: Low Power Standby,

Disconnect, Normal Active, Reverse Polarity, Ringing and Line

Test. Binary fault detection is provided upon application of fault

conditions or thermal overload.

–

Hazardous Potential

Foreign Electromotive Force

Resistive Faults

Receive Off-hook

Ringers Test

BLOCK DIAGRAM

Le77D11 SLIC

Switching Power

Supply

Loop Length

Ring

2-wire

World Wide Programmability:

— Two-wire AC impedance

— Dual Current Limit

Tip+Ring

Interface

Tip

2-wire to 4-wire

conversion

— Metering

Le78D11

Codec

— Programmable loop closure and ring trip thresholds

Six SLIC Device States, including:

— Low power Standby state

— On-hook transmission

Codec

Interface

2-wire to 4-wire

conversion

— Reverse Polarity

2-wire

Tip+Ring

Interface

Ring

Tip

Switching Power

Supply

RELATED LITERATURE

080697 Le78D11 Data Sheet

080716 Le77D11/Le78D11 Chip Set User’s Guide

081013 Layout Considerations for the Le77D11 and

Le9502 Application Note

Document ID# 080696 Date:

Sep 19, 2007

Rev:

Version:

Distribution:

Public Document

12 3 4 5 6 7...23

中文翻译

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与LE77D11BTCT相关器件

型号	品牌	获取价格	描述	数据表
LE78D110BVC	MICROSEMI	获取价格	PCM Codec, A/MU-Law, 1-Func, PQFP44, GREEN, MS-026ACB, TQFP-44
LE78D110BVC	ZARLINK	获取价格	PCM Codec, A/MU-Law, 1-Func, PQFP44, GREEN, MS-026ACB, TQFP-44
LE7920-1DJC	MICROSEMI	获取价格	SLIC, PQCC32, GREEN, PLASTIC, MS-016, LCC-32
LE7920-1DJCT	ZARLINK	获取价格	Analog Transmission Interface
LE7920-1JC	ZARLINK	获取价格	SLIC, 2-4 Conversion, PQCC32, PLASTIC, MS-016, LCC-32
LE7920-1JC	MICROSEMI	获取价格	SLIC, 2-4 Conversion, PQCC32, PLASTIC, MS-016, LCC-32
LE7920-1JCT	ZARLINK	获取价格	Analog Transmission Interface
LE7920-2DJC	ZARLINK	获取价格	SLIC, 2-4 Conversion, PQCC32, GREEN, PLASTIC, MS-016, LCC-32
LE7920-2DJC	MICROSEMI	获取价格	暂无描述
LE7920-2JC	ZARLINK	获取价格	SLIC, 2-4 Conversion, PQCC32, PLASTIC, MS-016, LCC-32

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