EL4095C データシートの表示（PDF） - Elantec -> Intersil

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EL4095C

Video Gain Control/Fader/Multiplexer

Elantec -> Intersil 

EL4095C

Video Gain Control Fader Multiplexer

Application Information Contd

Although another amplifier is needed to gain the

output back to standard level the reduced error

currents bring the differential phase error to less

than 0 1 over the entire input range

A useful technique to reduce video distortion is to

DC-restore the video level going into the EL4095

and offsetting black level to b0 35V so that the

entire video span encompasses g0 35V rather

than the unrestored possible span of g0 7V (for

standard-sized signals) For the preceding leveler

circuit the black level should be set more toward

b0 7V to accommodate the largest input or

made to vary with the gain control itself (large

gain small offset small gain larger offset)

The EL4095 can be wired as a four quadrant mul-

tiplier

EL4095 Connected as a Four-Quadrant Multiplier

4095 – 32

16

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