A DIGITÁLIS JELFELDOLGOZÁS ESZKÖZEI
Adatkonverterek: "A/D és D/A átalakítók"
Őszi félév       

Pápay Zs.:  ADATKONVERTEREK (az analóg "átjáró") · pdf               

Adatkonverzió ( szemlélet )
    Learning by simulations: ADconversion · SamplingTheorem
     The origins of the sampling theorem · Sampling formulas · Nyquist was just an alias · Nyquist limit  
     Aliasing demo1 / demo2 · AID · Sample rate conversion
    · Aliasing suppression in an ideal ADC · pdf
    · Harmonic images in an ideal DAC · pdf
    Sensor interface : programmable signal converter / QuickfilterTech
    Characterizing mixed signal DSP designs · spectogram / SpecDyn
    Applications: http://www.analog.com/en/sIndex.html , http://www.ti.com/ (DataConverters - BlockDiagrams ),
                       http://www.maxim-ic.com/ (Solutions), http://www.national.com/signalpath/
   HF1: · 1.3(a) feladat ( pdf 1 , 2 , pdf3 )  
            ( folding · IF interface · carrier · Doppler sonar · Range finder · nonlinear · multi-band1A   1B , algorithm 1  2  3   · multi-band2 )
            · Lehet-e egyidejűleg alul- és túl-mintavételezés?
            · TSIUQYN rule  ( "Connect the Dot" ) :  max hiba ? ( %, "sine: Miss the Peak" )
 
Zaj csökkentés
/ DSM ( NS: noise shaping )
    Q-error / Q-noise · SQNR kontra SFDR · avi: Q-noise spectrum ( sine, f/fs = 1/8, 1/16 ...) · dither1 / dither2
    · Sigma-delta ADC tutorial · pdf
    DSM topológiák · delta-sigma DAC1 / DAC2 · delta-sigma ADC
    Analog/DSP real-world signal conditioning / FreqDev
    Expanding · Flicker-free bits  vs.  effective resolution · Effectiveness of averaging ( code )
   
    HF2: 2.2 feladat ( pdf )
            ( But which name ? · Introduction to DSM · Are SD ADCs Greek to You ? · Demystifying SD ADCs )

Konverter minősítés
( " ABC leves " )
    ADC errors · Standards · harmonization 1 / 2
    Defining and testing dynamic parameters · Coherent sampling calculator / pdf1 / pdf2
    A basic guide to the AC specification of ADCs ( part 3, 4 )
    SNR - THD - SINAD calculator / pdf   ·  Data conversion calc2 / calc3
     · ADC test data evaluation program ( MATLAB ) · pdf
    DACs/ADCs test drive
    Understanding high speed DAC testing and evaluation
    Understanding high speed ADC testing and evaluation
     · ADIsimADC virtual evaluation tool ( pdf1 , pdf2 ) / on WEB · ADC's effective Noise Figure (NF)
    16 bit · 100MSPS · ADC jitter · FOM / "close to the ideal ADC" · Performance trends: 1999 / 2005 / 2006 · digital_IF
   
   HF3: spektrum-elemzés - INL vs. SFDR
            ( INLfromFFT · Chebyshev_test )

D/A átalakítók
( current steering topologies )
       Flatten DAC frequency response
     LTC1599 segmented ladder DAC - multiplying / Linear
        Lab grade 20-Bit DAC
     AD9772A interpolating DAC - image reconstruction / AnaDev
       
· Harmonic images in the interpolating DAC · pdf
     MB86060 DAC / Fujitsu
· Benchmarking DACs for communications
   
A/D átalakítók ( architectures )
    Designing antialias filters for ADCs
    MAX1292 SAR ADC - multiplexing / Maxim
        mpeg: an animation of the DAC waveform in SAR ADC
        SAR ic : DM2504 [discontinued] / DM54L502 / MM74C905 / MC14549B
    THS1206 pipeline ADC - simulteneously sampling, FIFO / Texas
        Higher data throughput for DSP ADCs · Simultaneous sampling DAQ architectures / Power-line monitoring
    A methodology of interfacing serial ADCs to DSPs · HiSpeed serial IF
    NI5911 flexADC · Flex2ADC / NatInst
    Performance enhancement · Avg vs. TI · Time Interleaved (TI) ADC · Mismatch effects individual 1 / 2  - combined  1 / 2
                                                                           
Quantization Interleaving (QI) ADC - Time Synchronized (TS) ADC
Selecting : resolution, sample_rate
Data converter chips:
pdf · suppliers

Paradigm shift ( in sync with the digital revolution ) , The case of SI | Signal compression ( SignalZIP ) , Samplify Systems - articles
Data converters - Books

© e-mail: papay@hit.bme.hu