TC90A45F Datasheet - Toshiba

TC90A45F NTSC 2-LINE DIGITAL Y/C SEPARATION

(1) Input clamp (CLAMP) This is sync tip clamp circuit for composite signal. This circuit makes feedback so that the min. data after A / D converter at Y / C separation equal to internal DC bias level. (2) A / D converter (ADC) This is high speed series-parallel 8 bit A / D converter (Dynamic Range.

TC90A45F Features

* TV system : NTSC PLL4 × multiplication circuit sync. tip clamping circuit Internal 8 bit A / D converter Internal 8 bit D / A converters (2 ch.) 1 H line memory Dynamic comb filter Color killer mode (Y / C separation OFF) DIP16 / SOP16 pack

TC90A45F_ToshibaSemiconductor.pdf