U3761MB-T Datasheet

IC型號(hào)：
U3761MB-T
PDF描述：
Universal Telephone IC - All Functions Integrated
文件大?。?/label>
335.26KB
PDF頁數(shù)：
27頁
芯片廠家：
ATMEL

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Features

Speech Circuit

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Adjustable DC Characteristic

Symmetrical Input of Microphone Amplifier

Receiving Amplifier for Dynamic or Piezo-electric Earpieces

Automatic Line-loss Compensation

Dialer

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DTMF/Pulse Switchable

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

Standard Low-cost Crystal 3.58 MHz or Ceramic Resonator

Handset Mute (Privacy) with Optical Indication

Additional Toggle Flipflop

Internal Loop Interrupt Detection

Universal

Telephone IC -

All Functions

Integrated

U3761MB-T

Tone Ringer

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2-tone Ringer

Adjustable Volume

RC Oscillator

Adjustable Threshold

Benefits

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Low Number of External Components

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High Quality through One IC Solution

Electrostatic sensitive device.

Observe precautions for handling.

Description

Atmel鈥檚 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鈥揅ORD鈥?9/03

型號(hào)

版本

描述

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