Differential Pulse Code Modulation And Demodulation Trainer For Electrical Lab Training Description and Specifications for Lab Tenders
Differential Pulse Code Modulation And Demodulation Trainer.
Experimental training board has been designed specifically to study
differential pulse code modulation & demodulation. In the basic DPCM
Modulator the base band analog signal is covered into 8 bit digital
format using an ADC. The sampling rate is set at 2.5 Khz.The DPCM
demodulator receives the serial data, converts it into 8 bit parallel
format. The Digital to Analog converter transforms the 8 bit parallel
data into analog level. Thus the output of DAC is a stepped
approximation of input signal. A low pass filter is used to recover the
analog signal.
Practical experience on this board carries great
educative value for science and engineering students.Object:To study
differential pulse code modulation & demodulation.Features:The board
consists of the following built-in parts :
5V D.C. at 100mA IC regulated power supply internally connected.
± 12V D.C. at 100mA IC regulated power supply internally connected.
- 5V D.C. to + 5V D.C. Variable D.C. output.
Audio Frequency Oscillator 10Hz to 100Hz for modulation.
DPCM Modulator (DPCM ENCODER).
DPCM Demodulator (DPCM DECODER).
Adequate no. of other electronic components.
Mains ON/OFF switch, fuse and jewel light.
The unit is operative on 230V ±10% at 50Hz A.C. Mains.
Adequate no. of patch cords stackable from rear both ends 4mm spring loaded plug length ½ metre.
Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections /observation of waveforms.
Strongly
supported by detailed Operating Instructions, giving details of Object,
Theory, Design procedures, Report Suggestions and Book References.
Weight : 3 Kg. (Approx.)
Dimension : W 340 x H 110 x D 210
OTHER APPARATUS REQUIRED* Dual Trace Cathode Ray Oscilloscope 20MHz.