Often the power amplifier stage of a communicationsdevice is located some distance from the control panel.The typical solution is to mount the volume control onthe front panel and run a pair of shielded cables back tothe power amplifier stage. A better solution is to use theXicor X9314 logarithmic taper digitally controlledpotentiometer. This completely eliminates the need forshielded cables since the digital pot can be located on theprinted circuit board near the low level input stages ofthe power amplifier. The up/down volume switches canbe located yards away as these are merely low speedTTL signals.
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