ECE 697 Delta-Sigma Data Converter Design: Lecture Notes

The zip files contain MATLAB code and schematics used (if any) during the lecture.

Some of these files may he password protected.

 

Jan 19: Lecture 1 – Course introduction, Ideal sampling, Ideal S/H. Lecture1_Notes.pdf.

Jan 21: Lecture 2 – S/H analysis, T/H, Quantizers. Lecture 2 Notes.pdf, Lecture 2 Matlab files [Simulations require delta-sigma toolbox].

Jan 26: Lecture 3 – DSP basics: Discrete-time Fourier transform (DTFT), discrete Fourier series (DFS) and discrete Fourier transform (DFT) Lecture 3 Notes.pdf.

Jan 28: Lecture 4 – Spectral estimation using FFT, Spectral windows. Lecture 4 Notes.pdf, Lecture 4.zip.

Feb 02: Lecture 5 – Quantization noise modeling, ADC measurements. Lecture 5 Notes.pdf, Lecture 5.zip.

Feb 04: Lecture 6 – Filter design example (for HW#1), Oversampling data converters, First-order noise shaping. Lecture 6 Notes.pdf, Lecture 6.zip.

Feb 09: Lecture 7 – First-order delta-sigma modulator (DSM) and decimation filter, second-order DSM. Lecture 7 Notes.pdf, Lecture 7.zip.

Feb 11: Lecture 8 – Second-order delta-sigma modulator, realizability conditions on NTF. Lecture 8 Notes.pdf, Lecture 8.zip.

Feb 16: Lecture 9 – Boser-Wooley and Silva-Steensgaard modulator topologies, NTF-zero optimization, Generalized loop filter representation. Lecture 9 Notes.pdf, Lecture 9.zip.

Feb 18: Lecture 10 – Stability analysis of delta-sigma modulators using describing function method. Lecture 10 Notes.pdf, Lecture 10.zip.

Feb 23: Lecture 11 – Multi-bit modulators, Maximum stable amplitude (MSA), Effective quantizer gain. Lecture 11 Notes.pdf, Multi-bit Modulators.pdf.

Feb 25: Lecture 12 – Systematic NTF synthesis procedure for higher-order DSM, NTF-zero and pole optimization, Toolbox functions for NTF synthesis and optimization. Lecture 12 Notes.pdf, Lecture 12.zip.

Mar 2: Lecture 13 – Estimating MSA from simulation, Bode’s Sensitivity Integral and NTF performance trade-offs. Lecture 13 Notes.pdf, Lecture 13.zip.

Mar 4: Lecture 14 – Delta-Sigma Loop filter architectures. Lecture 14 Notes.pdf.

Mar 9: Lecture 15 – Delta-Sigma Loop filter architectures contd.: CIFB, CRFB. Resonators for introducing complex zeros. Lecture 15 Notes.pdf, Lecture 15.zip.

Mar 11: Lecture 16 – Delta-Sigma Loop filter architectures: CIFF, CRFF. Comparison of FB and FF architectures. Multi-stage Modulators (L-0 cascade). Lecture 16 Notes.pdf, Lecture 16.zip.

Mar 16: Lecture 17 – MASHing of Modulators, Noise leakage in cascades, analysis of circuit non-idealities in MASH. Lecture 17 Notes.pdf.

Mar 18: Lecture 18 – ABCD Matrix representation of loop-filters, Dynamic Range Scaling (DRS). MATLAB toolbox demo of NTF synthesis, mapping NTF to architectures, simulation and range-scaling.

Mar 23: Lecture 19 – Introduction to Continuous-time Delta-Sigma Modulators (CT-DSMs), Impulse-invariance transformation. Lecture 19 Notes.pdf.

Mar 25: Lecture 20 – Time-scaling of CT-DSM, inherent anti-alias filtering (AAF) in CT-DSMs, Excess loop-delay (ELD) in first-order CT-DSM. Lecture 20 Notes.pdf.

Apr 06: Lecture 21 – ELD Compensation in first-order CT-DSM. Lecture 21 Notes.pdf.

Apr 08: Lecture 22 – State-space description of CT DSMs. Lecture 22 Notes.pdf.

Apr 13: Lecture 23 – Synthesis of higher-order CT DSMs: Impulse-invariant transform method and numerical fitting of scaling coefficients. Lecture 23 Notes.pdf.

Apr 15: Lecture 24 – Guest Lecture by H. Ahsan: Adaptive Filters and their application to MASH calibration.  Lecture 24 Slides.pdf, MASH Calibration.zip.

Apr 20: Lecture 25 – Excess loop-delay compensation in higher-order CT-DSMs. Lecture 25 Notes.pdf, extra notes, ELD Compensation.zip. 

Apr 22: Lecture 26 – Clock jitter sensitivity in DT and CT-DSMs. Lecture 26 Notes.pdf, CT DSM - DAC clock jitter derivation.pdf

Apr 27: Lecture 27 – NTF design for in-band jitter noise optimization in a CT-DSM. Lecture 27 Notes.pdf, CT-DSM Clock Jitter.zip. 

Apr 29: Lecture 28 – Switched-capacitor DSM implementation: Circuits, timing, noise-analysis, non-idealities. Switched Capacitor Design.zip

May 04: Open house for project and homework queries.

May 15: Final exam due.

 

 

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ECE 697: Delta-Sigma Data Converter Design