Synchronous detector is a very widely used detector, compared with other types of detectors, synchronous detector which characteristic?
     The synchronous detector is mainly used for double-sideband suppressed carrier single sideband amplitude modulation, and demodulates the modulated wave, amplitude modulation can be used to demodulate an ordinary wave. Is multiplied by the synchronous detector and low pass filter composed of two parts, the difference between it and the envelope detector input of the detector is required in addition to the demodulated AM signal voltage, but also must be applied with a frequency and phase the input signal carrier frequency of the carrier signal identical to the local voltage. The synchronous detector is actually an analog multiplication, in order to obtain demodulation effect requires an additional fully consistent with the input signal added to the carrier oscillation. Synchronous detector for demodulating the main signal or the residual sideband amplitude modulation sideband AM demodulated signal.
     Through the above description, you now know what the characteristics of a synchronous detector yet? If you would like more information about the detector, welcome to inquire.