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Modulbeschreibung - Mixed-Signal Circuits
(Mixed-Signal Schaltungstechnik)

ECTS 3.0
Level advanced
Overview This course covers most types of circuits you need to know if you want to understand data conversion (analog-to-digital, digital-to-analog, continuous-time to discrete-time, and vice versa):

  • ADCs and DACs: algorithmic ADCs, Flash ADCs, Cyclic and Pipeline ADCs, SAR (successive-approximation) ADCs
  • different types of DACs
  • Sigma-Delta (SD) Modulation and SD ADCs
  • simple switched-capacitor circuits for SD ADCs
  • digital CIC filters for SD ADCs
  • digital cells for filters and small controllers: implementation, timing, digital layout (demo)
  • Class-D PWM audio stages and C-DACs
  • Oscillators and PLLs
Learning objectives
  • The students can identify the fields within these topics where they can and need to apply what they learnt in ast and especially astGL.
  • They understand data conversion so thoroughly that they can, with patience, derive the effects of non-idealities in ADCs and DACs by manual conversion of a few values.
  • They see the connection between ADC and DAC performance measures and noise and the performance, noise and parameters of the parts they are made of, and specifically they can estimate the effect of component mismatch.
  • They can describe the importance of having a clean digital clock and the circuits required for creating a clean clock.
  • They can apply Mason analysis to linear discrete-time models of SD modulators and can derive signal and noise transfer functions.
  • They can explain what to change in these circuits and systems in order to improve one of the performance parameters, and what changes in the performance if something is changed in the system.
Previous knowledge
  • Analoge Schaltungstechnik - Grundlagen (astGL)
  • Analoge Schaltungstechnik (ast)
Exam format Continuous assessment grade with final oral exam
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