40697 provides an extensive hands on learning on 4-Channel and 2-Channel TDM-PCM Transmitter & Receiver.

Features

1. Modulator and Demodulator on same board
2. On-board four DDS Signal Generator for standard and Arbitrary signals
3. Selectable Sampling frequencies
4. On board four 2nd order Butterworth Low Pass filter
5. SMD LED indicators
6. Compact and Light Weight
7. Can be issued just like a book for hands-on learning

Object

1. Time Division Multiplexing & Demultiplexing with Pulse Code Modulation
2. 2 channel & 4 channel Time Division Multiplexing
3. Sample & Hold output at different channel by varying the Sampling as well as Signal frequency
4. Parallel to Serial conversion by varying the line speed clock at the different channel.
5. Single bit PCM output at different line speed clock at the different channels.
6. Single bit multiplexed PCM output at Modulator side.
7. Single bit demultiplexed PCM output at Demodulator side.
8. Pulse Code Demodulation at the different channel.
9. Serial to Parallel conversion at the Demodulator.
10. Analyze the final demodulated output with Second order Low Pass Butterworth filter .

Technical Specifications

Modulation & Demodulation

Techniques                                : Two channel TDM-PCM 

                                                    Four channel TDM-PCM

Internal Signal Generator          : Four dedicated Direct Digital Synthesizer Generators for each channel

Types of Signal                          : Sine, Square, Arbitrary signal

Frequency                                 : 500Hz, 1KHz, 1.5KHz, 2KHz, 3KHz

SMD LED Indicators                  : 54 nos for DDS signal selection DDS signal frequency selection Sampling selection Technique selection Interconnect path

Crystal Frequency                      : 8MHz

Sampling Frequencies              : 8KHz, 16KHz,32KHz

TDM techniques based on        : Bell lab system

Selection Mode                         : Push switches

Number of Test Points              : 40 nos.

Low Pass Filter                         : 4nos. Cut-off frequency-5KHz

Dimensions (mm)                     : W326xD252xH52

Power Supply                           : 110V' - 260VAC, 50/60Hz

Weight                                      : 1.5Kg (Approximately)

Operating Conditions               : 0-40°C, 85% RH

Included accessory                  : 2mm Patch cord - 2nos

Simtel 11 - Digital Communication Interactive Software (optional)

Topics

1. Source: Signal Source, Pulse Generator, Data Generator, Delay
2. Math Operations: Adder, Subtractor, Multiplier
3. Natural and Flattop Sampling
4. Line Encoding and Decoding
5. Delta Modulator and Demodulator
6. Adaptive Modulator and Demodulator For more details refer Simtel 11 Catalog