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U4089B-PFNG3 Datasheet

  • U4089B-PFNG3

  • Monolithic Integrated Feature Phone Circuit

  • 541.11KB

  • 26頁

  • ATMEL   ATMEL

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Features
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DC Characteristic Adjustable
Transmit and Receive Gain Adjustable
Symmetrical Input of Microphone Amplifier
Anti-clipping in Transmit Direction
Automatic Line-loss Compensation
Built-in Ear Protection
DTMF and MUTE Input
Adjustable Sidetone Suppression Independent of Sending and Receiving
Amplification
Integrated Amplifier for Loudhearing Operation
Anti-clipping for Loudspeaker Amplifier
Improved Acoustical Feedback Suppression
Selectable Line Impedance
Voice Switch
Supply Voltages for All Functional Blocks of a Subscriber Set
Operation Possible from 10-mA Line Current
Filters Against EMI on Critical I/O
Monolithic
Integrated
Feature Phone
Circuit
U4089B-P
Benefits
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Complete System Integration of Analog Signal Processing on One Chip
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Very Few External Components
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Less Components for EMI protection
Applications
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Feature Phones
Answering Machines
Fax Machines
Speaker Phones
Description
The telephone circuit U4089B-P is a linear integrated circuit for use in feature phones,
answering machines and fax machines. It contains the speech circuit, sidetone
equivalent and ear protection rectifiers. The circuit is line-powered and contains all
components necessary for the amplification of signals and adaptation to the line.
An integrated voice switch with loudspeaker amplifier enables loudhearing or hands-
free operation. With an anti-feedback function, acoustical feedback during loud-
hearing can be reduced significantly. The generated supply voltage is suitable for a
wide range of peripheral circuits.
Electrostatic sensitive device.
Observe precautions for handling.
Rev. 4518A鈥揅ORD鈥?5/02
1

U4089B-PFNG3相關(guān)型號PDF文件下載

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  • 英文版
    Low-Power Audio Amplifier for Telephone Applications
    TEMIC
  • 英文版
    Low-Power Audio Amplifier for Telephone Applications
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    Voice-Switched Circuit for Handsfree Operation
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  • 英文版
    Voice-Switched Circuit for Handsfree Operation
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    Low-Voltage Voice-Switched IC for Hands-Free Operation
    Atmel
  • 英文版
    Low-Power Audio Amplifier for Telephone Applications
    TEMIC
  • 英文版
    Low-Power Audio Amplifier for Telephone Applications
    TEMIC [TEM...
  • 英文版
    Low-Voltage, Voice-Switched Circuit for Hands-Free Operation
    TEMIC
  • 英文版
    Low-Voltage, Voice-Switched Circuit for Hands-Free Operation
    TEMIC [TEM...
  • 英文版
    Technische Daten Technical Data
    ETC [ETC]
  • 英文版
    Low Voltage Voice Switch Interface Circuit for Hands-free Op...
    TEMIC [TEM...
  • 英文版
    MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
    ATMEL [ATM...
  • 英文版
    MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
    ATMEL [ATM...
  • 英文版
    Monolithic Integrated Feature Phone Circuit
    ATMEL
  • 英文版
    Monolithic Integrated Feature Phone Circuit
    ATMEL [ATM...
  • 英文版
    Speakerphone Circuit
    ETC
  • 英文版
    Low Voltage Voice Switch Interface Circuit for Hands-free Op...
    TEMIC [TEM...
  • 英文版
    Low-Power Audio Amplifier for Telephone Applications
    TEMIC
  • 英文版
    Low-Power Audio Amplifier for Telephone Applications
    TEMIC [TEM...
  • 英文版
    MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
    ATMEL [ATM...

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