IT-4211 CVSD Transceiver Trainer

The Continuously Variable Slope Delta Modulator (CVSD) is a simple alternative to more complex conventional conversion technique, like PCM, in systems requiring digital communication of analog signals. The CVSD A-D conversion is well suited to the requirements of digital communications and is an economically efficient means of digitizing analog inputs for transmission. This trainer explores the functionality of CVSD Encoding / Decoding technique. All required sectioned are provided on board like, clock generator, audio generator, microphone interface, low pass filter, audio output and ac amplifier.

Description

The Continuously Variable Slope Delta Modulator (CVSD) is a simple alternative to more complex conventional conversion technique, like PCM, in systems requiring digital communication of analog signals. The CVSD A-D conversion is well suited to the requirements of digital communications and is an economically efficient means of digitizing analog inputs for transmission. This trainer explores the functionality of CVSD Encoding / Decoding technique. All required sectioned are provided on board like, clock generator, audio generator, microphone interface, low pass filter, audio output and ac amplifier.

 

Features:

Power Supply Included

Required Circuits Tested

Each Section Clearly Marked for Input and Output

Each Section Works as an Independent Unit

Built-in CVSD Encoder/Decoder

Built-In Clock Generators

Built-In AC Amplifier

Each Section Clearly Marked for Easy Understanding

 

Technical Features:

Clock Generator: 8K, 16K, 32K, 64K

Audio Signal generator: adjustable frequency & gain

Encoder: CVSD

Decoder: CVSD

Low Pass Filter: 5th Order Butterworth Filter with 3.4KHz cut off

Amplifier: AC amplifier with variable gain

Audio Amplifier: Monolithic amplifier with speaker

Voice interface: microphone

Accessories: Experiment Manual, 2mm patch cords, and power cord

 

Experiments included:

Study of CVSD Encoder

Effect of clock on CVSD encoding

Study of Tone signal encoded in CVSD

Study of Voice signal encoded in CVSD

Study of CVSD Decoder

Effect of clock on CVSD decoding

Study of Tone signal decoded with CVSD

Study of Voice signal decoded with CVSD