EL4332C
Triple 2:1 300 MHz Mux-Amp AV =2
A Bandwidth Selectable Circuit
In Figure 5, a circuit is shown that allows three signals
to be either low pass filtered or full bandwidth.
This could be useful where an input signal is frequently
noisy. The component values shown
give a Butterworth LPF response, with a -3 dB fre-
quency of 50 MHz. Note again, the resistor values are
low, so that stray capacitance does not affect the desired
cut-off frequency.
Figure 5. Switched 50 MHz Low Pass Filter for High/Low Resolution Monitors
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