U3761MB-T

更新时间： 2024-11-20 22:18:23

品牌	Logo	应用领域
爱特美尔 - ATMEL		电话
页数	文件大小	规格书
27页	335K
描述
Universal Telephone IC - All Functions Integrated

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中文翻译

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数据手册

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U3761MB-T 数据手册

Features

Speech Circuit

• Adjustable DC Characteristic

• Symmetrical Input of Microphone Amplifier

• Receiving Amplifier for Dynamic or Piezo-electric Earpieces

• Automatic Line-loss Compensation

Dialer

• DTMF/Pulse Switchable

Universal

• Pulse Dialing 66/33 or 60/40 or DTMF Dialing Selectable by Pin

• Selectable Flashing Duration by Key Pad

• Pause Function

• Optical Indication of Temporary DTMF Mode

• Keytone for Pulse Dialing

• Last Number Redial up to 32 Digits

• Three by 17 Digits Direct (One-touch) Memory

• Ten by 17 Digits Indirect (Two-touch) Memory

• Notice Function up to 32 Digits

Telephone IC -

All Functions

Integrated

• Standard Low-cost Crystal 3.58 MHz or Ceramic Resonator

• Handset Mute (Privacy) with Optical Indication

• Additional Toggle Flipflop

U3761MB-T

• Internal Loop Interrupt Detection

Tone Ringer

• 2-tone Ringer

• Adjustable Volume

• RC Oscillator

• Adjustable Threshold

Benefits

• Low Number of External Components

• High Quality through One IC Solution

Electrostatic sensitive device.

Observe precautions for handling.

Description

Atmel’s low-voltage telephone circuit U3761MB-T performs all the speech and line

interface functions required in an electronic telephone set, a tone ringer, a pulse and

DTMF dialing with redial, notice function, and 13 memories. Operation below 15 mA is

possible with reduced performance.

Rev. 4744A–CORD–09/03

12 3 4 5 6 7...27

中文翻译

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