Unit 2: Introduction to direct signal coupling techniques from analog to digital processors. |
Introduction. Coupling technology in base band and by modulation. Measurement of time constants. PWM modulation. Sigma-Delta Modulation. Phase modulation. Frequency Modulation. Resources for coupling analog signals to digital processors. |
Unit 4: Sigma-delta modulators circuits. |
Design of sigma-delta modulators with different topologies. Operating parameters. Low-pass and band-pass modulators. |
Unit 6: Digital filter circuits for signal sampling and reconstruction applications. |
VHDL synthesis of digital filters. Decimation filters. Equalizer filters. Data format. Optimization. |
Laboratory sessions. |
1.- Simulation of a Sigma-Delta ADC modulator.
2.- Assembly of a Sigma-Delta ADC modulator.
3.- Configuration of an FPGA to implement a Sigma-Delta DAC modulator.
4.- Configuration of an FPGA to implement a comb pass-2 filter.
5.- Configuration of an FPGA to implement a DDS circuit.
6.- Configuration of an FPGA to implement a synthesizer circuit based on IIR filter.
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