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BU8877

Features: 1) No malfunction by voice signal2) Dual tone detection (350Hz and 440Hz)3) Wide dynamic range4) 3.58MHz crystal resonatorApplicationTelephone, Codeless telephone and Facsimile for the U.S.Specifications Parameter Symbol Limits Unit Power supply voltage VCC 7 V Powerdiss...

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SeekIC No. : 004303977 Detail

BU8877: Features: 1) No malfunction by voice signal2) Dual tone detection (350Hz and 440Hz)3) Wide dynamic range4) 3.58MHz crystal resonatorApplicationTelephone, Codeless telephone and Facsimile for the U.S...

BU8877 Data Sheet

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Part Number:
BU8877
Supply Ability:
5000

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

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Upload time: 2024/12/21

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Product Details

Description



Features:

1) No malfunction by voice signal
2) Dual tone detection (350Hz and 440Hz)
3) Wide dynamic range
4) 3.58MHz crystal resonator


Application

Telephone, Codeless telephone and Facsimile for the U.S.


Specifications

Parameter Symbol Limits Unit
Power supply voltage  VCC  7  V 
 Power
dissipation		  DIP8  Pd  800 *1  mW
 SOP16  300 *2
 Operating temperature range  Topr  -30 ~ +80  
 Storage temperature range  Tstg  -55 ~ +125  

*1 Derating:8.0mW/ for operation above Ta=25
*2 Derating:3.0mW/ for operation above Ta=25


Description

The BU8877 and BU8877F are ICs that detect dial tones from a call progress signal used in the telephone lines.   The ICs detect dual signals 350Hz(from 345 to 355Hz)and 440Hz(from 435 to 445Hz).


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