NumberacesECTS3.0LeveladvancedOverviewThis module will prepare students for designing embedded systems with different sensor and actor interfaces. Many modern microcontrollers already contain some analog and mixed-signal blocks, but they are mostly of low quality and may be quite temperature dependent, so an intimate knowledge of non-idealities, noise, and electromagnetic compatibility is necessary.
Contens:
- noise, distortion, interference, and relevant measures (SNR, SDNR, PSRR, CMRR)
- ADC/DAC non-idealities; ADC and DAC selection
- clock quality and sampling
- low-noise voltage inputs, programmable-gain amplifiers
- microphone amplifiers
- electrocardiogram amplifiers (differential-difference opamp)
- capacitive sensor interfaces
- current-mode circuits
- sigma-delta modulation
- pulse-width modulation for loudspeakers and actuators
Learning objectives
- The students can apply the theory from the modules astGL and siv to practical problems encountered in embedded systems.
- They are sufficiently proficient with linear analysis such that they can analyse complex analog and mixed-signal systems and can synthesize specified transfer functions with simple analog and mixed-signal blocks.
- Particularly, they can apply linear system analysis to any analog circuit as well as to mixed-signal systems with ADCs and DACs.
- They can apply noise analysis, noise propagation, and error analysis (sensitivity analysis) to such systems, and can evaluate the performance through calculation and interpretation of measurement and simulation results.
- They learn how to deal with strongly non-linear feedback systems at the example of sigma-delta modulators, and consequently can use sigma-delta ADCs and DACs in embedded systems.
Previous knowledge- Signalverarbeitung (siv)
- Analoge Schaltungstechnik - Grundlagen (astGL)
Exam format final oral exam 
