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U4037BN

Features: DC characteristic adjustableReceive gain adjustableSymmetrical input of microphone amplifierAnti-clipping in transmit directionAutomatic line-loss compensationSymmetrical output of earpiece amplifierBuilt-in ear protectionDTMF and MUTE inputAdjustable sidetone suppression independent of ...

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U4037BN: Features: DC characteristic adjustableReceive gain adjustableSymmetrical input of microphone amplifierAnti-clipping in transmit directionAutomatic line-loss compensationSymmetrical output of earpiec...

U4037BN Data Sheet

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Part Number:
U4037BN
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/30

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Product Details

Description



Features:

DC characteristic adjustable
Receive gain adjustable
Symmetrical input of microphone amplifier
Anti-clipping in transmit direction
Automatic line-loss compensation
Symmetrical output of earpiece amplifier
Built-in ear protection
DTMF and MUTE input
Adjustable sidetone suppression independent of sending and receiving amplification
Power down
Tone-ringer interface
2-bit D/A for volume control
Supply voltages for all functional blocks of a subscriber set
Operation possible from 8-mA line currents


Pinout

Connection Diagram


Specifications

Parameters Symbol Value Unit
Line current IL 140 mA
DC line voltage VL 12 V
Maximum input current IRING 15 mA
Junction temperature Tj +125 °C
Ambient temperature Tamb 25 to +75 °C
Storage temperature Tstg 50 to +125 °C
Total power dissipation Tamb = 60°C Ptot 520 W



Description

The C-controlled telephone circuit U4037B is a linear integrated circuit for use in telephone sets. It contains the speech circuit, tone-ringer interface, sidetone equivalent and ear-protection rectifiers. The U4037B is line powered and contains all components necessary for amplification of signals and adaptation to the line.


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