Noise Reduction Using Low Weight and Constant Weight Coding Techniques

Title: en_US Noise Reduction Using Low Weight and Constant Weight Coding Techniques
Creator: en_US Tabor, Jeff F.
Date: 2004-10-20T20:22:53Z
Date Available: 2004-10-20T20:22:53Z
Date Issued: en_US 1990-05-01
Identifier: en_US AITR-1232
uri: http://hdl.handle.net/1721.1/7029
Abstract: en_US Signalling off-chip requires significant current. As a result, a chip's power-supply current changes drastically during certain output-bus transitions. These current fluctuations cause a voltage drop between the chip and circuit board due to the parasitic inductance of the power-supply package leads. Digital designers often go to great lengths to reduce this "transmitted" noise. Cray, for instance, carefully balances output signals using a technique called differential signalling to guarantee a chip has constant output current. Transmitted-noise reduction costs Cray a factor of two in output pins and wires. Coding achieves similar results at smaller costs.
Extent: 6996019 bytes; 2623293 bytes
Format: application/postscript; application/pdf
Language: en_US
Relation: en_US AITR-1232