Features: FEATURES· Picture content dependent non-linear Y and U, Vprocessing by histogram analysis· Adaptive and variable gamma correction controls· Black and white stretch capabilities· Transparent I2C-bus control· On-chip window generator for valid histogram measurement and black detection.Pino...
TDA9170: Features: FEATURES· Picture content dependent non-linear Y and U, Vprocessing by histogram analysis· Adaptive and variable gamma correction controls· Black and white stretch capabilities· Transparen...
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SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
VDDA | analog supply voltage | -0.5 | +8.8 | V | |
VDDD | digital supply voltage | -0.5 | +5.5 | V | |
Vref | reference supply voltage | -0.5 | +5.5 | V | |
Vn | voltage input/output on any other pin | -0.5 | VDDA + 0.5 | V | |
Tstg | storage temperature | -55 | +150 | °C | |
Tamb | operating ambient temperature | -10 | +70 | °C | |
Ves | electrostatic discharge | note 1 | -2000 | +2000 | V |
note 2 | -200 | +200 | V |
The TDA9170 is a transparent analog video processorwith a YUV interface. It offers three main luminanceprocessing functions any combination of which can beselected.
The luminance transfer is controlled in a non-linearmanner by the distribution (in 5 discrete histogramsections) of the luminance values measured in a picture.As a result, the contrast ratio of the most important parts ofthe picture will be improved.
The TDA9170 is a transparent analog video processor Black restoration is available in the event of a set-up in the luminance signal. A variable gamma function, after the histogram conversion, offers the possibility of excellent brightness control.The luminance transfer is controlled in a non-linearo maintain a proper colour reproduction, the saturation o the U and V colour difference signals are controlled as a function of the actual non-linearity in the luminance channel.