This thesis presents time difference (TD) circuits that are important for measuring fluorescence lifetime, building LIDAR systems, and optimizing digital systems. The contribution of this thesis is to present a systematic organization of TD circuits and to present novel designs for digital-to-time conversion (DTC) and time-to-digital conversion (TDC).
Four basic time difference circuits are presented: TD adder, arbiter, time-difference MUX, and time-difference memory. Specifications, symbols, and multiple circuit implementations are presented for each block. Then the basic blocks are combined to form two compound blocks: DTC and TDC. Novel designs are presented for both blocks along with detailed simulation results.
The DTC was fabricated in TSMC’s 0.35um high-voltage process. A printed circuit board was designed to interface the DTC chip to a computer and test instruments. The DTC demonstrated 80ps resolution.
| Identifer | oai:union.ndltd.org:UMASS/oai:scholarworks.umass.edu:theses-2177 |
| Date | 01 January 2013 |
| Creators | Li, Shuo |
| Publisher | ScholarWorks@UMass Amherst |
| Source Sets | University of Massachusetts, Amherst |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Masters Theses 1911 - February 2014 |
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