Investigation of techniques for high speed CMOS arbitrary wavefor

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Investigation of techniques for high speed CMOS arbitrary wavefor

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef

Investigation of techniques for high speed CMOS arbitrary waveforform generationAlbert Henry NehlPortland State UniversityFollow this and additional works at: https://pdxscholar.library.pdx.edu/open_access_etds& Par

t of the Electrical and Computer Engineering CommonsLet us know how access to this document benefits you.Recommended CitationNehl, Albert Henry, "Inve Investigation of techniques for high speed CMOS arbitrary wavefor

stigation of techniques for high speed CMOS arbitrary waveform generation" (1990). Dissertations and Theses. Paper 4109.https://doi.org/10.15760/etd.5

Investigation of techniques for high speed CMOS arbitrary wavefor

993This Thesis IS brought to you for free and open access. It has been accepted for inclusion in Dissertations and Theses by an authorized administrat

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef

Investigation of techniques for high speed CMOS arbitrary waveforr the Master of Science in Electrical and Computer Engineering presented February 2, 1990.Title: Investigation of Techniques for High Speed CMOS Arbit

rary Waveform GenerationAPPROVED BY THE MEMBERS OF THE THESIS COMMITTEE:Today a growing number of applications in design engineering, production and e Investigation of techniques for high speed CMOS arbitrary wavefor

nvironmental testing, and system service require specific analog waveforms and digital patterns. Such requirements are neither satisfactorily nor easi

Investigation of techniques for high speed CMOS arbitrary wavefor

ly met by the use of standard function or single purpose, custom generators.2Traditional methods of waveform generation suffer from undesirable comple

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef

Investigation of techniques for high speed CMOS arbitrary wavefor modal analysis and electronic engineering, direct digital synthesis techniques are satisfactory. Direct digital synthesis, based generally on periodi

c retrieval of predetermined amplitude values, may be used to generate such waveforms. Within the limits imposed by the system's maximum sample rate a Investigation of techniques for high speed CMOS arbitrary wavefor

nd the Nyquist criteria, any waveform may be produced using these techniques.The objective of this inquiry, within a particular set of constraints, is

Investigation of techniques for high speed CMOS arbitrary wavefor

to extend the cost/pcrformancc envelope of direct digital synthesis techniques for the generation of arbitrary waveforms. Performance is enhanced, pa

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef

Investigation of techniques for high speed CMOS arbitrary wavefordigital to analog conversion, and postconversion filtering, using an industry standard process. Access to a useful set of waveforms, including those o

f complex symmetry, indicates the use of memory for their storage. The system provides features and performance such as standard functions: sine, cosi Investigation of techniques for high speed CMOS arbitrary wavefor

ne, rectangular, triangular, and sawtooth waves; arbitrary, user defined or captured, waves; extensive memory capacity; random access to waveform segm

Investigation of techniques for high speed CMOS arbitrary wavefor

ents; datapoint segment sequencing and looping; free running, gated, triggered or swept modes; greater than 60 dB signal3to noise ratio, or SNR; and a

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef

Investigation of techniques for high speed CMOS arbitrary waveforint word groups may be recalled and individual datapoint words may be multiplexed or shifted to the digital to analog converter at some appropriate sa

mple rate.An algorithm which determines an optimal number of samples per cycle and a sample clock rate, while minimizing the difference between the fr Investigation of techniques for high speed CMOS arbitrary wavefor

equency produced and the original target frequency is developed. The number of samples per cycle and the sample clock rate are both functions of the s

Investigation of techniques for high speed CMOS arbitrary wavefor

ystem’s maximum number of points per cycle, the sample clock range and its granularity, as well as the target frequency.These improvements provide for

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef

Investigation of techniques for high speed CMOS arbitrary waveforcuitry are developed. The result of combining these several developments in a novel structure is the DAWG, or Digital Arbitrary Waveform Generator. Th

is system, although conceptually simple, is capable of performance which matches or exceeds that of many currently available AWGs.INVESTIGATION OF TEC Investigation of techniques for high speed CMOS arbitrary wavefor

HNIQUES FOR HIGH SPEED CMOSARBITRARY WAVEFORM GENERATIONbyALBERT HENRY NEHLA thesis submited in partial fulfillment of the requirements for the degree

Investigation of techniques for high speed CMOS arbitrary wavefor

ofMASTER OF SCIENCE IN

Portland state UniversityPDXScholarDissertations and ThesesDissertations and Theses1990Investigation of techniques for high speed CMOS arbitrary wavef