Datasheet > MT9125AE

MT9125AE

更新时间： 2024-11-28 22:53:15

品牌	Logo	应用领域
MITEL		转换器 PC
页数	文件大小	规格书
16页	302K
描述
CMOS Dual ADPCM Transcoder

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中文翻译

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数据手册

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MT9125AE 数据手册

CMOS MT9125

Dual ADPCM Transcoder

Preliminary Information

ISSUE 3

August 1993

Features

Ordering Information

•

Dual channel full duplex transcoder

32 kbit/s and 24 kbit/s ADPCM coding,

MT9125AE

MT9125AP

24 Pin Plastic DIP

28 Pin PLCC

compatible to G.721 & and G.723 (1988) and

ANSI T1.303-1989

-40 to +85°C

•

Low power operation, total 25mW typical

Asynchronous 4.096 MHz master clock

operation

Description

•

Transparent ADPCM bypass capability

The Dual-channel ADPCM transcoder is a low

power, CMOS device capable of two encoder

functions and two decoder functions. Two 64 kbit/s

PCM channels are compressed into two 32 kbit/s

ADPCM channels, and two 32 kbit/s ADPCM

channels are expanded into two 64 kbit/s PCM

Serial interface for both PCM and ADPCM data

streams

•

ST-BUS interface supported

Pin selected µ-law or A-law operation

Pin selected CCITT or sign-magnitude PCM

coding

channels.

algorithm utilized conforms to CCITT Recom-

mendation G.721 and ANSI T1.303-1989. The

The 32 kbit/s ADPCM transcoding

•

Single 5 volt power supply

Optional reset value (CCITT Table 3/G.721)

capability

device also supports a 24 kbit/s (three bit word)

algorithm (CCITT/G.723).

Applications

Switching, on-the-fly, between 32 kbit/s and 24

kbit/s, is possible by toggling the appropriate Mode

Select (MS1-MS4) control pins.

•

Pair gain

Voice mail systems

Wireless set base stations

C2o

BCLK

F0i

EN1

EN2

Timing

ST-BUS

Converter

MCLK

ENS

DSTo

ADPCMi

ADPCM

I/O

Transcoder 1

DSTi

PCM

I/O

ENB1

ENB2

ADPCMo

ENA

Control Decode

Transcoder 2

VDD VSS PWRDN

MS1 MS2 A/µ FORMAT MS3 MS4

Figure 1 - Functional Block Diagram

8-17

12 3 4 5 6 7...16

中文翻译

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与MT9125AE相关器件

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MT9125AP	MITEL	获取价格	CMOS Dual ADPCM Transcoder
MT9126	MITEL	获取价格	CMOS Quad ADPCM Transcoder
MT9126AE	MITEL	获取价格	CMOS Quad ADPCM Transcoder
MT9126AE1	MICROSEMI	获取价格	ADPCM Codec, A/MU-Law, 1-Func, CMOS, PDIP28, LEAD FREE, PLASTIC, MS-011AB, DIP-28
MT9126AS	MITEL	获取价格	CMOS Quad ADPCM Transcoder
MT9126ASR	ZARLINK	获取价格	ADPCM Codec, A/MU-Law, 1-Func, CMOS, PDSO28, 0.300 INCH, MS-013AE, SOIC-28
MT9126ASR	MICROSEMI	获取价格	Codec, CMOS, PDSO28
MT9126ASR1	MICROSEMI	获取价格	ADPCM Codec, A/MU-Law, 1-Func, CMOS, PDSO28, 0.300 INCH, LEAD FREE, MS-013AE, SOIC-28
MT9126ASR1	ZARLINK	获取价格	ADPCM Codec, A/MU-Law, 1-Func, CMOS, PDSO28, 0.300 INCH, LEAD FREE, MS-013AE, SOIC-28
MT9160	MITEL	获取价格	ISO2-CMOS 5 Volt Multi-Featured Codec (MFC)