Current profile of a microcontroller to determine electromagnetic emissions

A methodology is proposed to determine the current profile early in the design process to accurately estimate electromagnetic emissions. Design information describing the clock and power distribution network topologies and the placement and sizing of the decoupling capacitors is used to determine the current signatures of individual circuit blocks and the entire system. The proposed methodology is incorporated within the integrated circuit emission model (ICEM). Current profiles for various circuits with different characteristics are determined using the proposed model.

[1]  Junwu Tao,et al.  Modeling the Electromagnetic Emission of a Microcontroller Using a Single Model , 2008, IEEE Transactions on Electromagnetic Compatibility.

[2]  Eby G. Friedman,et al.  Clock distribution networks in synchronous digital integrated circuits , 2001, Proc. IEEE.

[3]  Yoshitaka Toyota,et al.  Power current modeling of IC/LSI with load dependency for EMI simulation , 2003, 2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446).

[4]  Eby G. Friedman,et al.  Repeater design to reduce delay and power in resistive interconnect , 1997, Proceedings of 1997 IEEE International Symposium on Circuits and Systems. Circuits and Systems in the Information Age ISCAS '97.

[5]  T.H. Hubing,et al.  The Electromagnetic Compatibility of Integrated Circuits—Past, Present, and Future , 2009, IEEE Transactions on Electromagnetic Compatibility.

[6]  Eby G. Friedman,et al.  Distributed power network co-design with on-chip power supplies and decoupling capacitors , 2011, International Workshop on System Level Interconnect Prediction.

[7]  Mario Huemer,et al.  Modeling of dynamic switching currents of digital VLSI IC modules and verification by on-chip measurement , 2007, 2007 18th International Zurich Symposium on Electromagnetic Compatibility.

[8]  Yamarita Villavicencio,et al.  Electrical Model of Microcontrollers for the Prediction of Electromagnetic Emissions , 2011, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

[9]  Hyun Ho Park,et al.  Prediction of radiated EMI from PCB excited by switching noise of IC , 2009 .

[10]  C. Lochot,et al.  ICEM: a new standard for EMC of IC definition and examples , 2003, 2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446).