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TDM - PAM Transmitter Receiver

TDM - PAM Transmitter Receiver

Product Description

Scientech TechBooks are compact and user friendly learning platforms to provide a modern, portable, comprehensive and practical way to learn Technology. Each TechBook is provided with detailed Multimedia learning material which covers basic theory, step by step procedure to conduct the experiment and other useful information.
TDM-PAM Transmitter and Receiver Scientech TechBook 2152 is a  communication system where the message signal is modulated using Pulse Amplitude Modulation and multiple access is provided using Time Division Multiplexing. The message information is encoded in the amplitude of a series of signal pulses and transmitted using Time Division Multiplexing (i.e. in different time slots).
The TechBook demonstrates following modes of operation between transmitter and receiver -
Mode 1: 3 signals communication (Clock/Sync/Modulated Signals)
Mode 2: 2 signals communication (Sync/Modulated signals); Clock is recovered at receiver.
Mode 3: 1 signal communication (Modulated signal); Clock and Sync are recovered at receiver

Product Features

  • Crystal controlled clock
  • On-board synchronized analog Signal Generator (DC and Sine wave)
  • Demonstrates sampling and reconstructed as per Nyquist criterion
  • Four switch selectable sampling frequencies
  • Sampling pulse duty-cycle selectable
  • On-board Pulse Generator
  • Four analog input channels to demonstrate TDM-PAM
  • Generation of clock at receiver by PLL
  • Fourth order Butterworth Low Pass Filter

Scope of Learning

  • Pulse Amplitude Modulation technique

  • Time Division Multiplexing and Demultiplexing

  • PLL as Frequency Multiplier to generate clock from sync signal

  • Three modes of operation between transmitter and receiver 4 (3 signals/ 2 signals/ 1 signal communication)

  • Effect of varying duty cycle of sampling pulse on signal 4 reconstruction

  • Effect of different sampling frequencies on TDM-PAM & demodulation technique 

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