TDM-Pulse Amplitude Modulation (2 Channel) Modulation and Demodulation SA-247

TDM-PAM Modulation - This has two PAM modulators and two channel analog TDM Modulator wired as TDM PAM modulator. Every PAM modulator has IC 555 as sampling pulse generator and IC4016 as CMOS switch wired with RC components to provide PAM outputs 1 & 2 for the applied two analog inputs and sampling pulses. The modulating inputs are processed through two PAM modulators and then as an input to analog TDM modulator circuit to output two channel analog time division multiplexed outputs.  
TDM-PAM Demodulation - This has two channel analog TDM Demodulator and two PAM Demodulators wired as TDM PAM Demodulator. Every PAM demodulator has NPN Transistor as CE amplifier and RC filter wired as Pulse Amplitude Demodulator to provide the demodulated analog output with minimum noise. The applied two channel TDM-PAM input is separated by TDM demodulator and then separated signals are processed through PAM demodulators to recover the multiplexed signals. on board Sine wave (modulating) signal generators (2Nos) with variable  frequency upto 100KHz and amplitude. Sync clock pulse generator variable upto 100 KHz, TDM Channels two analog, facility to control the modulating inputs and sync pulse input, maximum modulating frequency 10KHz, maximum carrier frequency 100KHz, Bandwidth 3KHz, Built-in fixed DC +12V/+5V/1A Power supply and  test points.
Objectives :

• To study  the operation of two channel TDM-Pulse Amplitude modulation.
• To study the Pulse Amplitude Modulation. To observe and note the PAM outputs for the applied modulating inputs.
• To study the two channel TDM- PAM outputs.
• To observe and note the effect on TDM-PAM output w.r.t. change in modulating inputs.
• To observe and note the effect on TDM-PAM output w.r.t. change in Sync pulse input.
•  To study  the operation of two channel TDM-Pulse Amplitude Demodulation.
• To study the operation of TDM Demodulator.
• To study the Pulse Amplitude Demodulation.
• To observe and note the demodulated outputs for the applied TDM-PAM inputs.
• To observe and note the change in demodulated outputs w.r.t. modulating inputs.

Accessories Included : Set of Patch Cords, Operating Manual