band switching diode application on schematic

Discussion in 'General Electronics Chat' started by donut, Dec 14, 2012.

  1. donut

    Thread Starter Member

    May 23, 2012
    please review attachment and let me know how the switching diode ic is being used. Each switching diode has two inputs from the APD's. I would like to know what causes the diode to switch between the two APD's signals it receives? How does the switching diode decides that it needs to switch and when to switch?