Accession Number : ADA339077
Title : Design, Testing, and Evaluation of GaAsPN Sequence Generator Circuits Implemented in DCFL and TDFL
Descriptive Note : Master's thesis
Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Personal Author(s) : Schimpf, Michael W.
PDF Url : ADA339077
Report Date : SEP 1997
Pagination or Media Count : 96
Abstract : Spaceborne and military communications hardware demands very high speed circuitry even under high radiation exposure. GaAs field effect transistors have the desirable quality that they possess rapid switching rates and are inherently more resistant to total-dose radiation induced failure than their silicon CMOS counterparts. This thesis project involves the design. simulation, submission for fabrication. testing. and evaluation of a 1 -GHz. 7-bit, pseudo-noise sequence generator (PNSG) which has numerous communications applications. particularly in spread-spectrum communications. The basic design of the PNSG is provided first,then topology-specific design considerations are covered for directly-coupled FET logic (DCFL) and two-phase dynamic FET logic (TDFL) implementations. Analysis and comparison of circuit performance characteristics are completed, demonstrating the significant improvement in speed, layout area, and power consumption that dynamic logic offers.
Descriptors : *GALLIUM ARSENIDES, *COMMUNICATION EQUIPMENT, *INTEGRATED CIRCUITS, *FIELD EFFECT TRANSISTORS, *SEQUENCES, *GENERATORS, *LOGIC, *PSEUDO NOISE SYSTEMS, TEST AND EVALUATION, SIMULATION, DIGITAL SYSTEMS, EXPOSURE(GENERAL), COMPUTERS, DYNAMICS, MILITARY EQUIPMENT, HIGH VELOCITY, THESES, SILICON, THERMAL CONDUCTIVITY, MILITARY APPLICATIONS, SWITCHING, ENERGY CONSUMPTION, COMPLEMENTARY METAL OXIDE SEMICONDUCTORS, TWO PHASE FLOW, CARRIER MOBILITY, RADIATION HARDENING, SPREAD SPECTRUM, SPACEBORNE.
Subject Categories : Electrical and Electronic Equipment
Logistics, Military Facilities and Supplies
Distribution Statement : APPROVED FOR PUBLIC RELEASE