EL4095 Просмотр технического описания (PDF) - Intersil

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производитель

EL4095

Video Gain Control/Fader/Multiplexer

Intersil 

EL4095

FIGURE 5. EL4095 CONNECTED AS A FOUR-QUADRANT MULTIPLIER

The A channel gains the input by +1 and the B channel by

-1. Feedthrough suppression of the Y input can be optimized

by introducing an offset between channel A and B. This is

easily done by injecting an adjustable current into the

summing junction (-VIN terminal) of the B input channel.

The two input channels can be connected to a common input

through two dissimilar filters to create a DC-controlled

variable filter. This circuit provides a controlled range of

peaking through rolloff characteristics:

15

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