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L3280

Features: .OPERATIONDOWN TO 1.3 V/5 mA.DTMF & BEEP TONE INPUTS·EXTERNAL MUTING FOR EARPHONE AND MICROPHONE ·MUTE TURNS ON BEEP TONE & DTMF INPUTSAND TURNS OFF EARPHONE & MICROPHONE ·SUITABLE FOR DYNAMIC OR PIEZO EARPHONES AND PIEZO, DYNAMIC OR ELECTRET MICROPHONESPinoutSpecifications ...

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SeekIC No. : 004389097 Detail

L3280: Features: .OPERATIONDOWN TO 1.3 V/5 mA.DTMF & BEEP TONE INPUTS·EXTERNAL MUTING FOR EARPHONE AND MICROPHONE ·MUTE TURNS ON BEEP TONE & DTMF INPUTSAND TURNS OFF EARPHONE & MICROPHONE ·SUIT...

L3280 Data Sheet

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Part Number:
L3280
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: 2024/4/28

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Product Details

Description



Features:

.OPERATIONDOWN TO 1.3 V/5 mA
.DTMF & BEEP TONE INPUTS
·EXTERNAL MUTING FOR EARPHONE AND MICROPHONE
·MUTE TURNS ON BEEP TONE & DTMF INPUTS AND TURNS OFF EARPHONE & MICROPHONE
·SUITABLE FOR DYNAMIC OR PIEZO EARPHONES AND PIEZO, DYNAMIC OR ELECTRET MICROPHONES


Pinout

Connection Diagram


Specifications

Symbol Parameter
Value
Unit
VL Line Voltage (3 ms pulse)
20
V
IL Line Current
150
mA
Ptot Total Power Dissipation, Tamb = 70
1
W
Top Operating Temperature
20 to 55
Tj Junction Temperature
65 to 150



Description

The L3280is a brandnewlowvoltage speechcircuit designedto replacehybrid circuits in telephonesets. L3280  is designed for sets that may be operated in parallel. It features both DTMF input and Beep tone input ; ALCon send and receive and muting input.

VariousDC - characteristics can be programmedat pin 14 replacing testing resistor (43) with proper network value.




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