MC145426L

更新时间： 2024-11-04 13:11:15

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		/
页数	文件大小	规格书
20页	264K
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数据手册

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MC145426L 数据手册

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by MC145422/D

SEMICONDUCTOR TECHNICAL DATA

The MC145422 and MC145426 UDLTs are high–speed data transceivers

that provide 80 kbps full–duplex data communication over 26 AWG and larger

twisted–pair cable up to two kilometers in distance. Intended primarily for use in

digital subscriber voice/data telephone systems, these devices can also be

used in remote data acquisition and control systems. These devices utilize a

256 kilobaud modified differential phase shift keying burst modulation technique

for transmission to minimize RFI/ EMI and crosstalk. Simultaneous power

distribution and duplex data communication can be obtained using a single

twisted–pair wire.

These devices are designed for compatibility with existing, as well as

evolving, telephone switching hardware and software architectures.

The UDLT chip–set consists of the MC145422 Master UDLT for use at the

telephone switch linecard and the MC145426 Slave UDLT for use at the remote

digital telset and/or data terminal.

P SUFFIX

PLASTIC DIP

CASE 708

DW SUFFIX

SOG PACKAGE

CASE 751E

ORDERING INFORMATION

MC145422P

MC145426P

Plastic DIP

The devices employ CMOS technology in order to take advantage of their

reliable low–power operation and proven capability for complex analog/digital

LSI functions.

MC145422DW SOG Package

MC145426DW SOG Package

•

Provides Full–Duplex Synchronous 64 kpbs Voice/Data Channel and Two

8 kbps Signaling Data Channels Over One 26 AWG Wire Pair Up to Two

Kilometers

•

Compatible with Existing and Evolving Telephone Switch Architectures and

Call Signaling Schemes

Automatic Detection Threshold Adjustment for Optimum Performance Over

Varying Signal Attenuations

•

Protocol Independent

Single 5 V Power Supply

22–Pin PDIP, 24–Pin SOG Packages

Application Notes AN943, AN949, AN968, AN946, and AN948

MC145422 Master UDLT

•

Pin Controlled Power–Down and Loopback Features

Signaling and Control I/O Capable of Sharing Common Bus Wiring with

Other UDLTs

•

Variable Data Clock — 64 kHz to 2.56 MHz

Pin Controlled Insertion/Extraction of 8 kbps Channel into LSB of 64 kbps

Channel for Simultaneous Routing of Voice and Data Through PCM Voice

Path of Telephone Switch

MC145426 Slave UDLT

•

Compatible with MC145500 Series PCM Codec–Filters

Pin Controlled Loopback Feature

Automatic Power–Up/Power–Down Feature

On–Chip Data Clock Recovery and Generation

Pin Controlled 500 Hz D3 or CCITT Format PCM Tone Generator for

Audible Feedback Applications

REV 2

9/95

Motorola, Inc. 1995

MOTOROLA

MC145422•MC145426

12 3 4 5 6 7...20

中文翻译

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与MC145426L相关器件

型号	品牌	获取价格	描述	数据表
MC145426P	MOTOROLA	获取价格	Universal Digital-Loop Transceiver
MC145428	MOTOROLA	获取价格	DATA SET INTERFACE
MC145428DW	LANSDALE	获取价格	Asynchronous-to-Synchronous and Synchronous-to-Asynchronous Converter
MC145428L	MOTOROLA	获取价格	Data Set Interface Asynchronous-To-Synchronous Synchronous-To-Asynchronous Converter
MC145428P	MOTOROLA	获取价格	Data Set Interface Asynchronous-To-Synchronous Synchronous-To-Asynchronous Converter
MC145428P	LANSDALE	获取价格	Asynchronous-to-Synchronous and Synchronous-to-Asynchronous Converter
MC145429L	MOTOROLA	获取价格	TELSET AUDIO INTERFACE
MC145429P	MOTOROLA	获取价格	TELSET AUDIO INTERFACE
MC145432L	MOTOROLA	获取价格	Continuous Time Filter, 1 Func, Bandpass/Notch, CMOS, CDIP18, 726-04
MC145432LD	MOTOROLA	获取价格	Switched Capacitor Filter, 2 Func, Bandpass/Notch, CMOS, CDIP18

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