MODELING AND SIMULATION OF SUBSTRATE NOISE IN MIXED-SIGNAL CIRCUITS APPLIED TO A SPECIAL VCO

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KHODA BANDEHLOU G.; MIRZAKOUCHAKI S.; KARIMI GH.R.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF ELECTRICAL AND ELECTRONIC ENGINEERING Year:2006 | Volume:2 | Issue:1 Page(s): 8-15

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Title

MODELING AND SIMULATION OF SUBSTRATE NOISE IN MIXED-SIGNAL CIRCUITS APPLIED TO A SPECIAL VCO

Author(s)

KHODA BANDEHLOU G. | MIRZAKOUCHAKI S. | KARIMI GH.R. | Issue Writer Certificate

Keywords

MIXES-SIGNAL CIRCUITS

COUPLING

SUBSTRATE NOISE

GREEN'S FUNCTION

VCA

PHASE NOISE

Abstract

The mixed-signal circuits with both analog and digital blocks on a single chip have wide applications in communication and RF circuits. Integrating these two blocks can cause serious problems especially in applications requiring fast digital circuits and high performance analog blocks. Fast switching in digital blocks generates a noise which can be introduced to analog circuits by the common substrate. This noise can decrease the performance of mixed-signal circuits; therefore, studying this noise and the way it is transmitted will lead to solutions for reducing it and improving mixed-signal circuit's performance. In this paper, an efficient model for substrate is extracted from GREEN'S FUNCTION in MATLAB environment, and its accuracy is demonstrated. Using a VCA and a multiplier as analog and digital blocks, respectively and simulating them along with the proposed model of the substrate, the effects of SUBSTRATE NOISE coupled to analog blocks are shown. Finally, some methods for reducing this noise are applied to the circuit, and the results are compared to each other. The results indicate that using P+ Guard Rings is the best method for reducing SUBSTRATE NOISE in the mixed-signal circuits.

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APA: Copy

KHODA BANDEHLOU, G., MIRZAKOUCHAKI, S., & KARIMI, GH.R.. (2006). MODELING AND SIMULATION OF SUBSTRATE NOISE IN MIXED-SIGNAL CIRCUITS APPLIED TO A SPECIAL VCO. IRANIAN JOURNAL OF ELECTRICAL AND ELECTRONIC ENGINEERING, 2(1), 8-15. SID. https://sid.ir/paper/299677/en

Vancouver: Copy

KHODA BANDEHLOU G., MIRZAKOUCHAKI S., KARIMI GH.R.. MODELING AND SIMULATION OF SUBSTRATE NOISE IN MIXED-SIGNAL CIRCUITS APPLIED TO A SPECIAL VCO. IRANIAN JOURNAL OF ELECTRICAL AND ELECTRONIC ENGINEERING[Internet]. 2006;2(1):8-15. Available from: https://sid.ir/paper/299677/en

IEEE: Copy

G. KHODA BANDEHLOU, S. MIRZAKOUCHAKI, and GH.R. KARIMI, “MODELING AND SIMULATION OF SUBSTRATE NOISE IN MIXED-SIGNAL CIRCUITS APPLIED TO A SPECIAL VCO,” IRANIAN JOURNAL OF ELECTRICAL AND ELECTRONIC ENGINEERING, vol. 2, no. 1, pp. 8–15, 2006, [Online]. Available: https://sid.ir/paper/299677/en

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