Pulse Amplitude Modulation/Demodulation (7402)

Pulse Amplitude Modulation/Demodulation

Key Features

Crystal controlled Clock
On-board signal generator (Synchronized) DC and Sine
On-board pulse generator
Demonstrates sampling and reconstruction as per Nyquist criterion
4 Analog input channels (TDM-PAM)
Four switch selectable sampling frequencies
Pulse duty cycle selectable
Generation of clock at receiver by PLL system
4^th order Butterworth L. P. Filters

Product Description

The unit is one of a range of digital communication trainers and provides all necessary inputs and connections for students to study pulse amplitude modulation / demodulation techniques, time division multiplexing and demultiplexing of signals and signal reconstruction.

Experiments:

Study of pulse amplitude modulation technique
Study of time division multiplexing and demultiplexing
Study of PLL as frequency multiplier to generate clock from sync signal
Study of effect of varying duty cycle of sampling pulse on signal reconstruction
Study of 3 modes of operation to regenerate original signal
3 connections between transmitter and receiver (clock, sync & information)
2 connections (sync & information). Clock regenerated at receiver
1 connection (information only). Clock and sync derived at receiver