TCA660B

The TCA660B is an integrated circuit performing the control functions of contrast,saturation and brightness in colour television receivers.Contrast is controlled by three tracking electronic potentiometers;one for the luminance signal and the other two for the and colour difference signals.In addition two tracking electronic potentiometers provide the saturation control of the colour difference signals.Brightness is controlled by varying the black level of the luminance signal at the output.An inverting amplifier is also included for matrixing the signal from the and colour difference signals.

The TCA660B has some ratings.Limiting values in accordance with the absolute maximum system.The voltage,when rating is supply voltage,the symbol is V13-4,the max. is 13.2V.The power disspation,when rating is total power dissipation,the symbol is Ptot,the max. is 600mW.The temperatures,when rating is storage temperature,the symbol is Tstg,the range is -25 to +125.When rating is operating ambient temperature,the symbol is Tamb,the range is -25 to +65.

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