What device is used to demodulate a time division multiplexed analog wave?(a) High pass filter(b) Low pass filter(c) Band stop filter(d) AttenuatorI have been asked this question in a job interview.My query is from Time Division Multiplexing topic in section Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics

What device is used to demodulate a time division multiplexed analog w

1.	What device is used to demodulate a time division multiplexed analog wave?(a) High pass filter(b) Low pass filter(c) Band stop filter(d) AttenuatorI have been asked this question in a job interview.My query is from Time Division Multiplexing topic in section Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics
Answer» Correct answer is (b) Low pass filter Explanation: the analog signal is converted to a series of constant-width pulses WHOSE amplitude follows the shape of the analog signal. The original analog signal is recovered by PASSING it through a low-pass filter. In TDM using PAM, a circuit called a multiplexer (MUX or MPX) samples multiple analog signal sources; the RESULTING pulses are interleaved and then transmitted over a single channel.

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