DPCM Modulation & Demodulation SB-238

Product Category :  Digital Communication Lab Trainer  (Series : 200-B)
Product Name : DPCM Modulation & Demodulation
Model No.: SB-238
Product Details :

• DPCM Modulation: The circuit of OP-AMP IC 741 differential amplifier, 8 bit ADC with S/H Quantizer, Parallel to Serial converter, serial to parallel converter, Accumulator, 8 bit DAC and modulator are wired as Differential Pulse Code Modulation to provide digital DPCM output for applied modulating input. facility of AC/DC  modulating input, Clock section generates three clock signals, facility to control DPCM transmission, Start control, Sine wave signal generators (1Nos) and Square wave signal generators (1Nos) with variable frequency upto 100KHz and amplitude. facility to control carrier signal, DPCM 8 bit, Variable DC Input 0-5V, maximum modulating frequency 5KHz, maximum carrier frequency 100KHz, Built-in fixed DC ±12V/+5V/1A Power supply and maximum test points.  

• DPCM Demodulation: The circuit of  Serial to Parallel converter, 8 bit DAC, Low pass filter and amplifier are wired as Differential Pulse Code Demodulation to provide demodulated output for the applied DPCM input. synchronized clock from transmitter, DPCM 8 bit, maximum modulating frequency 5KHz, maximum carrier frequency 100KHz, Bandwidth 3KHz and maximum test points.  

• Objectives :
  
  • To study the principle of Differential Pulse Code Modulation and Demodulation (DPCM).
  • To study the circuit of DPCM modulator and Demodulator.
  • To study the Clock section of DPCM.
  • To observe the change in DPCM O/P w.r.t change in modulating input.
  • To observe the effect on DPCM O/P w.r.t change in carrier input.
  • To observe the difference between m(t) and m(k) signals.
  • To observe the change in Demodulated O/P w.r.t change in modulating input of DPCM.
  • To observe the effect on demodulated O/P w.r.t change in carrier input of DPCM.

• Accessories Included :  Set of Patch Cords, Operating Manual