Datasheet > SA9401

SA9401

更新时间： 2024-09-23 22:26:55

品牌	Logo	应用领域
SAMES		电信集成电路
页数	文件大小	规格书
16页	125K
描述
UNIVERSAL PABX TONE GENERATOR

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数据手册

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SA9401 数据手册

sa me s

SA9401

UNIVERSAL PABX TONE GENERATOR

FEATURES

■

Each of these tone streams selectable

from 16 tone blocks

■

Generates PBX supervisory tones in

PCM format

Seperate Intrude Tone for each pro-

gram

■

Integrated time slot allocation circuitry

No noticeable level changes in tones

■

Choice of clock frequencies

Watchdog facility

Frame synch. signal source (internal/

external) selectable

Low power CMOS technology

■

Eight tone programs

Eight independent PCM tone streams

within each program

PROGRAMMABLE FEATURES

■

Intrude tone frequency

Intrude tone cadence

"silence sample" value

■

Tone samples

■

Tone Cadence timing

Tone to time-slot mapping

Size of tone blocks

DESCRIPTION

The SA9401 operates in conjunction with a standard EPROM to generate the system

tone plans for the PABX systems of most major countries.

The high level of programmability allows the SA9401 to satisfy a wide variety of tone

plans. Furthermore by providing three inputs to select between one of eight tone

programs during initialisation, the device effectively facilitates the design of a universally

programmable "PABX Processor Card". Because the tone program inputs are latched

at the start of each PCM frame the SA9401 minimises the possibility of glitches.

The SA9401 can also generate the PCM Frame synchronising reference signal if

required.

4092

PDS039-SA9401-001

REV.

07-05-96

12 3 4 5 6 7...16

中文翻译

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