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CAT NO: DIDACTICNLE-Export-081069
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.
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