STV3550 datasheet(36/144 Pages) STMICROELECTRONICS

Part #	STV3550

Description	LCD and Matrix Display TV Processor

PDF	144 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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STV3550

As an example, the strength of the peaking is adjustable up to 64 steps from 0 to +10 dB. The

frequency peaking is adjustable from 1.5 MHz to 3.5 MHz by software (1H domain frequencies).

Coring is set using the coring level parameter which gives the strength of the noise suppression in

32 steps.

3.3.8

Color Transient Improvement

Color Transient Improvement (CTI) is used to improve color transitions and chroma resolution. It

uses a custom filter to enhance chroma transitions. Overshoots and undershoots of correction are

suppressed to eliminate incorrect colors at the output of the algorithm. Also small amplitudes are

not amplified and are further reduced to suppress noise amplification.

Figure 25 shows an example of step enhancement and noise pass through.

Figure 25: Step Enhancement and Noise Pass Through

-5

-10

-15

468

= Correction Signal

= Input Signal

= Peaked Signal

STV3550 Datasheet(PDF) 36 Page - STMicroelectronics