AL-E710 DIFFERENTIAL PULSE CODE MODULATION AND DEMODULATION TRAINER (DPCM)

Description

SCOPE OF LEARNING:

• To study DPCM modulation and Demodulation. To study Quantization Error.
• To study voice communication for DPCM(Optional).
• To study Effect of Switch faults

Generator:

• Data Clock Generator -­â€Jumper selectable clock with amplitude of 5V.
• Clock of frequencies 64 KHz, 128 KHz, 256 KHz and 512KHz.  
• Sampling Clock-­â€-­â€ Sampling Clock is generated using IC 4016.
• Sampling Clock Frequency of 16 KHz and Amplitude of 5V.
• DPCM modulation using sampler, quantizer and linear predictor.
• Onboard Buffer is provided using LF353.
• DPCM demodulation using linear predictor, Integrator and Low pass Filter.
• On-­â€board Low pass filter using TL084.

Power Supply:

• Fixed DC Power Supplies +5V,+5V DC, 250mA
• Operated on Mains power 230V, 50Hz +10%

Components are mounted on the panels are:

• IC
• Capacitors
• Resistors
• Diode
• Filter: Low pass having cut off Frequency 3.4 KHz.

SALIENT FEATURES:

• Front panel built with high class insulated Printed Circuit Board sheet with well printed circuits and      symbols.
  • Instruction manual.
  • Connections are brought out through 4mm Sockets.
  • Patch Cords 4mm.
  • The trainer is housed in ABS Plastic cabinet.
  • Size of the trainer set 12”x8”

OPTIONAL ACCESSORIES:

CRO

Technical Details