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TDA4670 Datasheet Picture Signal Improvement Psi

Manufacturer: NXP Semiconductors

Overview: INTEGRATED CIRCUITS DATA SHEET TDA4670 Picture Signal Improvement (PSI) circuit Product specification Supersedes data of May 1991 File under Integrated Circuits, IC02 1996 Dec 11 Philips Semiconductors Product.

General Description

TDA4670 The TDA4670 delays the luminance signal and improves colour-difference signal transients.

Additionally, the luminance signal can be improved by peaking and noise reduction (coring).

MAX.

Key Features

  • Luminance signal delay from 20 to 1100 ns (minimum step 45 ns).
  • Luminance signal peaking with selectable symmetrical overshoots.
  • 2.6 or 5 MHz peaking centre frequency and selectable degree of peaking (.
  • 3, 0, +3 and +6 dB).
  • Selectable noise reduction by coring.
  • Handles negative and positive colour-difference signals.
  • Selectable Colour Transient Improvement (CTI) to decrease the colour-difference signal transient times to those of the.

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