Tenders Description & Specification for Pulse Code Modulation and Demodulation (PCM) Trainer
Pulse Code Modulation and Demodulation (PCM) Trainer
Experimental Training Board has been designed specifically to study
Pulse Code Modulation & Demodulation. In the basic PCM 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 8 bit parallel data
from ADC is converted into serial bit stream at 33 kbps.
The PCM Demodulator receives the serial data, converts it into 8 bit
parallel format. The Analog to digital 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 Pulse Code Modulation & Demodulation.
Features:
The board consists of the following built-in parts :
01. 5V D.C. at 100mA IC regulated power supply internally connected.
02. ± 15V D.C. at 100mA IC regulated power supply internally connected.
03. 5V D.C. to -9V Variable D.C. output.
04. Built in TTL Clock Generator 33 KHz.
05. Modulating Signal Generator 15Hz to 300Hz.
06. PCM Encoder.
07. PCM Decoder.
08. Data display with LED’s
09. Adequate no. of other electronic components.
10. 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.
Other Apparatus Required:
* Cathode Ray Oscilloscope 20MHz.
Ltekonline are the manufacturers of Pulse Code Modulation and Demodulation (PCM) Trainer used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Communication System for Engineering Teaching Lab in Universities
Categories: Communication System