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M-993

更新时间： 2024-11-11 23:15:19

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M-993 数据手册

M-993

Region 1 MF Tone Generator

Description

Features

• Generates standard CCITT R1 MF tones

• Digital input control

• Linear (analog) output

• Power output capable of driving standard line

• 14-pin DIP

• Single 5-Volt supply

The M-993 is a monolithic CMOS integrated circuit

designed to generate multifrequency (MF) tone pairs

for use in trunk signaling. The tones generated con-

form to CCITT R1 signal recommendations and to

AT&T MF standards. The M-993 permits design engi-

neers to implement a highly accurate MF sender with

a minimum of space, power, and added components.

The accuracy of the tone frequencies is assured

through use of an easily obtained 3.58 MHz color burst

crystal or an external 3.58 MHz clock source.

• Inexpensive 3.58 MHz time base

Applications

• Telephone systems

• Test equipment

Ordering Information

Part #

Description

M-993

14-pin plastic DIP

Pin Diagram

Block Diagram

DS-M993-R1

www.clare.com

12 3 4 5 6

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型号	品牌	获取价格	描述	数据表
M994A	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994A-05	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994A-19	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994A-68	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994A-69	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994A-LB	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994AP	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994AP-05	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994AP-19	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form
M994AP-68	ETC	获取价格	Dual tone 128 notes, Switch of one octave lower output, TO92-3L?DIP 16L or CHIP form