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. |
Unit 8: Applications of the mixed electronic systems to the instrumentation. |
Analogical-and-digital measurement electronic systems. Direct converting circuits of physical variables to digital signals. Resistance-to-digital, capacity-to-digital and inductance-to-digital converters. |