Product Summary

The TDA9178 is a transparent analog video processor with YUV input and output interfaces. It offers three main functions: luminance vector processing, colour vector processing and spectral processing. Beside these three main functions, there are some additional functions. In the luminance vector processor of the TDA9178, the luminance transfer function is controlled in a non-linear way by the distribution, in 5 discrete histogram sections, of the luminance values measured in a picture. As a result, the contrast ratio of the most important parts of the scene will be improved. Black restoration of the TDA9178 is available in the event of a set-up in the luminance signal. A variable gamma function, after the histogram conversion, offers the possibilities of alternative brightness control or factory adjustment of the picture tube.

Parametrics

TDA9178 maximum ratings: (1)VCC supply voltage 7.2 to 8.8 V, 8.0 V typ; (2)Vi(Y) luminance input voltage (excluding sync) AMS = 0 - 0.315 to 0.45 V; (3)AMS = 1: 1.0 to 1.41 V; (4)Vi(UV) UV input voltage: 1.9 V; (5)VFS(ADC) full-scale ADC input voltage: 2.0V.

Features

TDA9178 features: (1)Picture content dependent non-linear Y, U and V processing by luminance histogram analysis; (2)Variable gamma control; (3)Adaptive black and white stretch control; (4)Skin tone correction; (5)Green enhancement; (6)Blue stretch; (7)Luminance Transient Improvement (LTI); (8)Smart peaking for detail enhancement; (9)Colour Transient Improvement (CTI); (10)SCAn VElocity Modulation (SCAVEM) output; (11)Line Width Control (LWC); (12)Video Dependent Coring (VDC); (13)Colour Dependent Sharpness (CDS); (14)Noise measurement; (15)Feature Mode (FM) detector; (16)Cue Flash (CF) detector; (17)Three additional pins for access to 6-bit ADC and I2C-bus.

Diagrams

TDA9178 Block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TDA9178/N1,112
TDA9178/N1,112

IC VIDEO PROCESSOR 24-DIP
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Negotiable 
TDA9178
TDA9178
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Data Sheet
Negotiable