TDM - PAM Transmitter Receiver

TDM - PAM Transmitter Receiver
Scientech 2152

Product Description

TDM-PAM Transmitter and Receiver Scientech 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).

Scientech 2152 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

Scientech 2152, TDM - PAM Transmitter Receiver is an ideal teaching aid to enhance education, training, skills & development amongs our young minds.

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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