Comparison and impact of substrate noise due to clocked and clockless circuitry Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/n870zt90w

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Delay insensitive asynchronous circuitry provides significant advantages with respect to substrate noise due to localized switching. The differences between the substrate noise from NULL Convention Logic (NCL) and traditional Clocked Boolean Logic (CBL) are described and analyzed based on measured results. A test chip fabricated in the TSMC 0.25 um process shows that a pseudo-random number generator implemented with NCL generates 23 dB less substrate noise compared to the equivalent synchronous design. In a larger scale digital circuit, the substrate noise improvement offered by an asynchronous 8051 processor over its synchronous counterpart was nearly 10 dB. The effect of this substrate noise on an analog circuit was explored with a delta sigma modulator (DSM) example. The SNR performance of a second order DSM was not affected by the substrate noise from the NCL 8051 processor while it experiences up to 15 dB degradation when the CBL 8051 processor is clocked near integer multiples of the DSM sampling frequency.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Keyword
Subject
Rights Statement
Language
File Format
File Extent
  • 3416549 bytes
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2007-01-29T22:29:57Z (GMT). No. of bitstreams: 1 thesis.pdf: 3416549 bytes, checksum: 259b7e7aa441f816de5f9b61ffd5fdc8 (MD5)
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2007-01-24T16:50:20Z (GMT) No. of bitstreams: 1 thesis.pdf: 3416549 bytes, checksum: 259b7e7aa441f816de5f9b61ffd5fdc8 (MD5)
  • description.provenance : Submitted by Jim Le (leji@onid.oregonstate.edu) on 2007-01-22T04:08:36Z No. of bitstreams: 1 thesis.pdf: 3416549 bytes, checksum: 259b7e7aa441f816de5f9b61ffd5fdc8 (MD5)

Relationships

In Administrative Set:
Last modified: 08/14/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items