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 sections 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
