Playing the '.ac' card in noise analysis of RSFQ circuits
| Autor: | Q.P. Herr, Mark W. Johnson |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Computer science
Spice Hardware_PERFORMANCEANDRELIABILITY Condensed Matter Physics Noise (electronics) Microstrip Electronic Optical and Magnetic Materials Logic gate Rapid single flux quantum Hardware_INTEGRATEDCIRCUITS Bit error rate Electronic engineering Electrical and Electronic Engineering Hardware_LOGICDESIGN Network analysis Electronic circuit |
| Zdroj: | IEEE Transactions on Appiled Superconductivity. 13:531-534 |
| ISSN: | 1051-8223 |
| DOI: | 10.1109/tasc.2003.813926 |
| Popis: | Noise-induced bit error rate (BER) is an important design constraint for RSFQ circuits. No method, however, has been reported to calculate the BER of real, multi-junction RSFQ gates. We report such a method that requires only the operating margins and the root-mean-square noise current of the device in question. Noise current is determined using the ".ac" analysis card built into SPICE circuit simulators. As usual, operating margins are also determined using SPICE. These quantities determine BER via the error function, as is appropriate for threshold dynamics. The method is general enough to be applied to any RSFQ gate and even exotic circuits such as those that use passive microstrip signal propagation. Comparison to experimental data indicates that BER in RSFQ circuits does indeed arise strictly from thermal noise. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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