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TDA4471

Features: ` 5V supply voltage; low power consumption` Active carrier generation by FPLL principle (frequencyphaselockedloop) for true synchronous demodulation` Very linear video demodulation, good pulse response and excellent intermodulation figures` VCO circuit is operating on picture carrier fre...

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SeekIC No. : 004516337 Detail

TDA4471: Features: ` 5V supply voltage; low power consumption` Active carrier generation by FPLL principle (frequencyphaselockedloop) for true synchronous demodulation` Very linear video demodulation, good p...

TDA4471 Data Sheet

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Part Number:
TDA4471
Supply Ability:
5000

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

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Product Details

Description



Features:

` 5V supply voltage; low power consumption
` Active carrier generation by FPLL principle (frequencyphaselockedloop) for true
    synchronous demodulation
` Very linear video demodulation, good pulse response and excellent intermodulation figures
` VCO circuit is operating on picture carrier frequency, the VCO frequency is switchable for the L' mode
` Alignmentfree AFC without external reference circuit, polarity of the AFC curve is switchable
` VIFAGC for negative modulated signals
    (peak sync detection) and for positive modulation
    (peak white/black level detector)
` Tuner AGC with adjustable take over point
` Alignmentfree quasi parallel sound (QPS) mixer for FM/NICAM sound IF signals
` Intercarrier output signal is gain controlled (necessary for digital sound processing)
` Complete alignmentfree AM demodulator with gain controlled AF output
` Separate SIFAGC with average detection
` Parallel operation of the AM demodulator and QPS mixer (for NICAML stereo sound)
` Two video IF inputs (2 x VIFin)
` One sound IF input (1 x SIFin)
` Package and relevant pinning is compatible with the TDA4474; simplifies the design of an universal IF module


Pinout

Connection Diagram


Specifications

ÁParaÁmetÁer Symbol Value Unit
Supply voltage                 Pin25 Vs 9.0 V
Supply current                 Pin25 Is 85 mÁ
Power disspiation , Vs=+9V P 765 mW
Output currents     Pin 14,26,27 Iout 5 mÁ
Extemal voltages Pins 1,2,5-8,10-12,
                          14,16,19,20,26-28
                           Pins 17,22,23
                           Pins 13 
                           Pins 15,21,24 		Vext +4.5 V
+3.5 V
+13.5 V
Vs V
Junction temperature Tj +125
Storage temperature Tstg -25 to+125
Electrostatic handling*)              All pins VESD 300 V
*) Equivalent to discharging a 200 pF capacitor through a 0 resistor


Description

The TDA4471 is an integrated bipolar circuit for full multistandard video/sound IF (VIF/SIF) signal processing in TV/VCR and Multimedia applications. The circuit processes all TV video IF signals with negative modulation (e.g. B/G standard), positive modulation (e.g. L standard) and the AM, FM/NICAM sound IF signals. Specially two video IF inputs (2 x VIF) in combination with one sound IF input (1 x SIF) and the common pinning with the TDA4474 gives flexibility to design a universal IF module for various applications.




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