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PDM can be generated by either free running multi-vibrator or monostable multi-vibrator.(a) True(b) FalseThe question was posed to me in an interview for job.Enquiry is from Singletone SSB Modulation in division SSB Modulation of Analog Communications

Answer»

Correct OPTION is (b) False

The best explanation: PULSE density modulation (PDM) is used to represent an analog signal USING a digital signal. For generating PDM, MONOSTABLE multi-vibrator is used, which is externally triggered and has only one stable state.



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