The Teaching Unit for the Study of Digital Signal Processing “TDS” allows to study the principles and more important concepts about digital signal processing, including study and practical exercises, among others, of:
- Continuous waveforms generation.
- Analyze the nature of the signals.
- Working simultaneously with two external signals.
- Signals digitalization.
- Fast Fourier Transform visualization.
- Study of the effects of the digital signal processing.
- Study of the effects of the analog and digital filters.
- To analyze the time and frequency responses, before and after the digital signal processing.
- Behaviour of the generated signal or the user’s voice when noise is added to the signal, etc.
- Moreover, it is possible to generate different waveforms by the software and send them to the outputs of the unit. These signals can be visualized by an external oscilloscope or be listened by the speaker.
SPECIFICATION
Two Function Generators modules, each one includes:
- Waveform selector: sine, square and triangular.
- Frequency potentiometer, range: 20 Hz to 20 KHz.
- Amplitude potentiometer, range: ± 10 V.
- Duty cycle potentiometer, range: 0% to 100%.
- BNC output connector.
Noise Generator module:
- White noise generator:
- Amplitude potentiometer, range: ± 10 V.
- BNC output connector.
- Pink noise generator (also called frequency inverter or noise 1/ ƒ):
- Amplitude potentiometer, range: ± 10 V.
- BNC output connector.
Microphone Pre-Amplifier module:
- It adapts the microphone signal to be analyzed by the data acquisition system or by the speaker.
- 1/4’’ jack input connector for the microphone.
- BNC output connector.
Microphone:
- Impedance: 500 W.
- Frequency response: 70 Hz to 14 KHz.
- 1/4’’ jack connector.
Power Amplifier module, including: BNC input connector.
- BNC output connector.
- Potentiometer to regulate the power amplifier gain.
Speaker module:
- Impedance: 8 W.
- Nominal maximum power: 30 W.
- Frequency response: 100 Hz to 13 KHz.
PC input/output module, including:
- Two BNC input connectors.
- Two BNC output connectors.
SCSI connector to the data acquisition board (to be placed in the computer).
- Possibility of working simultaneously with two external signals, facilitating operations that require more than one signal.
- Possible to generate different waveforms by the software and send them to the outputs of the unit.
