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TDA7427

Features: *ON-CHIP REFERENCE OSCILLATOR AND PROGRAMMABLE IF COUNTER*VHF INPUT AND PRECOUNTER FOR FRE- QUENCIES UP TO 290MHz (SUITABLE FOR DAB APPLICATION)*HF INPUT FOR FREQUENCIES UP TO 64MHz (SHORTWAVE BAND)*IN-LOCK DETECTOR FOR SEARCH/STOP STATION FUNCTION STAND-BY MODE FOR LOW POWER CON-SUMPTIO...

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SeekIC No. : 004516616 Detail

TDA7427: Features: *ON-CHIP REFERENCE OSCILLATOR AND PROGRAMMABLE IF COUNTER*VHF INPUT AND PRECOUNTER FOR FRE- QUENCIES UP TO 290MHz (SUITABLE FOR DAB APPLICATION)*HF INPUT FOR FREQUENCIES UP TO 64MHz (SHORT...

TDA7427 Data Sheet

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Part Number:
TDA7427
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: 2025/1/12

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Product Details

Description



Features:

*ON-CHIP REFERENCE OSCILLATOR AND
   PROGRAMMABLE IF COUNTER
*VHF INPUT AND PRECOUNTER FOR FRE-
   QUENCIES UP TO 290MHz (SUITABLE FOR
   DAB APPLICATION)
*HF INPUT FOR FREQUENCIES UP TO
   64MHz (SHORTWAVE BAND)
*IN-LOCK DETECTOR FOR SEARCH/STOP
   STATION FUNCTION
   STAND-BY MODE FOR LOW POWER CON-
   SUMPTION
*HIGH CURRENT SOURCE FOR 0.5ms
   LOCK-IN TIME
*DIGITAL PORT EXTENSION WITH TWO
   OUTPUTS FOR FLEXIBILITY IN APPLICA-
   TION
*FULLY PROGRAMMABLE BY I 2 C BUS


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VDD1 Supply Voltage - 0.3 to + 7 V
VDD2 Supply Voltage - 0.3 to + 11 V
Ptot Total Power Dissipation 300 mW
Tstg Storage Temperature 55 to + 150
Tamb Ambient Temperature -40 to + 85



Description

The TDA7427 is a PLL frequency synthesizer with an additional IF counting system that performs all the functions needed in a complete PLL radio tuning system for conventional and high speed RDS tuners. The device has dedicated outputs for IN-LOCK detection and Search/Stop station.




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