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TDA9181

Features: FEATURES· One-chip multistandard adaptive comb filter· Cross luminance reduction· Cross colour reduction· No chroma trap, therefore sharper vertical luminance transients· Analog discrete-time signal processing, therefore no quantization noise· Anti-aliasing and reconstruction filters are...

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SeekIC No. : 004516929 Detail

TDA9181: Features: FEATURES· One-chip multistandard adaptive comb filter· Cross luminance reduction· Cross colour reduction· No chroma trap, therefore sharper vertical luminance transients· Analog discrete-t...

TDA9181 Data Sheet

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Part Number:
TDA9181
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:

FEATURES
· One-chip multistandard adaptive comb filter
· Cross luminance reduction
· Cross colour reduction
· No chroma trap, therefore sharper vertical luminance transients
· Analog discrete-time signal processing, therefore no quantization noise
· Anti-aliasing and reconstruction filters are included
· Input switch selects between two Y/CVBS inputs
· Output switch selects between combed CVBS and an external Y/C source
· fSC as well as 2 ´ fSC colour subcarrier signal may be applied
· Alignment free
· Few external components



Pinout

Connection Diagram


Description

GENERAL DESCRIPTION
  The TDA9181 is a an adaptive PAL/NTSC comb filter with  two internal delay lines, filters, clock control and input clamps. Video standards PAL B, G, H, D, I, M and N and NTSC M are supported. Two CVBS input signals can be selected by means of an input switch. The selected CVBS input signal is filtered to obtain a combed luminance output signal and a combed chrominance output signal. Switched capacitor circuit techniques are used, requiring an internal clock, locked on to the colour subcarrier frequency.

  The colour subcarrier frequency as well as twice the colour subcarrier frequency may be applied to the TDA9181. In addition to the comb filter the circuit contains an output switch so that a selection can be made between the combed CVBS signal and an external Y/C signal. The IC is available in a DIP16 and SO16 package. The supply voltage is 5 V.




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