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MFG:ST Package Cooled:DIP
Part Number: L3280
MFG: ST
Package Cooled: DIP
Description: The L3280is a brandnewlowvoltage speechcircuit designedto replacehybrid circuits in telephonesets. It ...
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L3280
-
Suppliers
DataSheet
General Description
L3280 General Description
The L3280is a brandnewlowvoltage speechcircuit designedto replacehybrid circuits in telephonesets. It 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.
L3280 Maximum Ratings
| 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 |
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 INPUTS AND TURNS OFF EARPHONE & MICROPHONE
·SUITABLE FOR DYNAMIC OR PIEZO EARPHONES AND PIEZO, DYNAMIC OR ELECTRET MICROPHONES
.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
L3280 Connection Diagram
L3280
PDF/DataSheet Download
- Datasheet: L3280
- File Size: 124507 KB
- Manufacturer: STMicro
- Click here to Download
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