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TDM Pulse Amplitude Modulation & Demodulation TrainerCT-TDM
TECHNICAL FEATURES
  • Crystal controlled Clock
  • On - Board Sine Generator (Synchronized)
  • On - Board Pulse Generator
  • 4 Analog input Channels samples and Time Division Multiplexed
  • Pulse Duty cycle selected
  • 4 Channel De multiplexer
  • Generation of clock at Receiver by PLL system
  • 4th order Butterworth L.P. Filters
TECHNICAL SPECIFICATIONS
  • Crystal Frequency: 6.4/8 Mhz
  • Analog Input channel : 4
  • Multiplexing : Time Division Multiplexing
  • Modulation : Pulse Amplitude Modulation
  • On - Board Analog Signal: 250 Hz, 500 Hz, 1 KHz, 2KHz 500 Hz, 1 KHz, 2KHz, 4KHz (optional)
  • Sampling Rate : 16 KHz/ Channel
  • Sampling Pulse : With Duty Cycle variable from 0 - 90% in decade steps
  • Clock Resistance at Receiver : Using PLL
  • Low Pass Filtercut-offFreq. : 3.4 Khz
  • Test Point : 52
  • Interconnections : 2/4 mm Socket
  • Power : 230VĪ 10%, 50/60 Hz, 4VA(approx)
EXPERIMENTS
  • Pulse Amplitude Modulation technique
  • Time Division Multiplexing and De multiplexing
  • PLL as Frequency Multiplexer to Generate clock from Sync signal
  • 3 modes of operation to generate original signal
    1. 3 connections between transmitter & receiver (Clock, Sync & Information)
    2. 2 connections (Information, Sync) Clock gen. at receiver
    3. 2 connection (information only), clock and Sync derived at receiver
  • Effect of varying duty of sampling pulse on signal reconstruction.
Accessories
  • Set of Patch Cords
  • Userís Manual
Optional Accessories
  • Multimedia interactive computer based training manual.
Downloads
6_COMMUNICATION_LAB_14.PDF
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