EL4095C
Video Gain Control Fader Multiplexer
Application Information Contd
to produce a standard video output The
bVIN of the A side is a buffer output that repro-
duces the input signal and drives RGA and RFA
Into the two resistors 2 1 mA of error current
flows for a typical 1 4V of input DC offset creat-
ing distortion in a A-side input stage RGA and
RFA could be increased together in value to re-
duce the error current and distortions but in-
creasing RFA would lower bandwidth A solution
would be to simply attenuate the input signal
magnitude and restore the EL4095 output level
to standard level with another amplifier so
Reduced-Gain Leveler for Video Inputs and Differential Gain and Phase Performance (see text)
4095 – 30
4095 – 31
15