Datasheet > UPD9903GT

UPD9903GT

更新时间： 2024-11-17 22:29:15

品牌	Logo	应用领域
日电电子 - NEC		解码器编解码器光电二极管
页数	文件大小	规格书
28页	134K
描述
UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC

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数据手册

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UPD9903GT 数据手册

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD9903

µPD9903 ANALOG SUBSCRIBER LINE LSI (DIGITAL CODEC)

The µPD9903 is a digital CODEC that can be used in analog subscriber circuits such as private branch exchangers

(PBXs) and switching equipment for central offices. It features three of the functions required for analog subscriber

circuits: 2W/4W conversion, CODEC supervision, and subscriber line supervision.

Use of the µPD9903 in combination with a BS-SLIC (µPC7073) can reduce the number of components required

in analog subscriber circuits.

FEATURES

• Single-chip monolithic LSI (CMOS)

• PCM CODEC → oversampling-type A/D and D/A converters

• Programmable functions

•

Termination impedance

Hybrid balance network

Feed resistance

Feed current

PAD control

A-law and µ-law

•

Digital gain set function

Ring-Trip function

Single power supply (+5 V)

Low power consumption during standby mode: 20 mW (TYP.)

ORDERING INFORMATION

Part Number

Package

µPD9903GT

48-pin plastic shrink SOP (375 mil)

The information in this document is subject to change without notice.

Document No. S10897EJ3V0DS00 (3rd edition)

Date Published June 1997 N

Printed in Japan

The mark shows major revised points.

1996

12 3 4 5 6 7...28

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