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TDA4474

Features: 5 V supply voltage; low power consumption Active carrier generation by FPLL principle(frequency-phase-locked-loop) for true synchronousdemodulation Very linear video demodulation, good pulse responseand excellent intermodulation figures VCO circuit is operating on picture carrier freque...

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SeekIC No. : 004516341 Detail

TDA4474: Features: 5 V supply voltage; low power consumption Active carrier generation by FPLL principle(frequency-phase-locked-loop) for true synchronousdemodulation Very linear video demodulation, good pu...

TDA4474 Data Sheet

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Part Number:
TDA4474
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:

5 V supply voltage; low power consumption
Active carrier generation by FPLL principle(frequency-phase-locked-loop)  for true synchronousdemodulation
Very linear video demodulation, good pulse responseand excellent intermodulation figures
VCO circuit is operating on picture carrier frequency,the VCO frequency is switchable for the L' mode
Alignment-free AFC without external referencecircuit,  polarity of the AFC curve is switchable
VIF-AGC for negative modulated signals (peak sync. detection) and for positive modulation(peak white/ black level detector)
Tuner AGC with adjustable take over point
Alignment-free quasi parallel sound (QPS) mixer forFM/NICAM sound IF signals
Intercarrier  output signal is gain controlled (necessaryfor  digital sound processing)
Complete alignment-free AM demodulator with gaincontrolled AF output
Separate SIF-AGC with average detection
Parallel operation of the AM demodulator and QPSmixer  (for NICAM-L stereo sound)
Four IF inputs (2  VIFin and 2  SIFin)
Package and relevant pinning is compatible with theTDA4471; simplifies the design of an universal IFmodule


Pinout

Connection Diagram


Specifications

Parameters

Symbol

Value

Unit

Supply voltage Pin 25
Supply current Pin 25
Power dissipation, Vs = + 9 V
Output currents Pin 14, 26, 27
External voltages
Pins 1, 2, 58, 1012, 14, 16, 19, 20, 2630
Pins 17, 22, 23
Pin 13
Pins 3, 15, 21, 24

Vs
Is
P
Iout

9.0
93
840
5

V
mA
mW
mA

Junction temperature
Storage temperature
Electrostatic handling *) all pins

Tj
Tstg
VESD

+ 4.5
+ 3.5
+ 13.5
Vs
+125
25 to +125
300

V
V
V
V
°C
°C
V

 

 

 

 




Description

The TDA4474 is an integrated bipolar circuit for fullmultistandard video/ sound IF (VIF/SIF) signalprocessing in TV/VCR and multimedia applications. Thecircuit processes all TV video IF signals with negativemodulation (e.g., B/G standard), positive modulation(e.g., L standard) and the AM, FM/NICAM soundIF signals.

Four IF inputs (2  VIF plus 2  SIF) and the commonpinning with TDA4471 gives flexibility to design auniversal IF module for various applications.




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