3 CHANNEL R.G.B VIDEO AMPLIFIER

The KA2l39 is a monolithic integrated circuit for processing the R,G,B video in high resolution CRT display.

It contains 3 channel video amplifier, black level clamp comparator for brightness control and DC control attenuator for contrast control, this device is suitable for monitor.

FEATURES

• 3 Channel R.G.B video amplifier (f.-3DB=7OMHz:Typ)

• Superior linearity contrast control

• Black level clamp comparator for brightness control

• Built-in clamp gate circuit to operate the clamp comparator at black level

• Vref 2.4V bandgap circuit

FUNCTIONS

• R. G. B amplifier

• Contrast control

• Clamp & brIghtness circuit

• Vref. circuit