Efficient On-Chip Decoupling Capacitor Design on an 8-Bit Microcontroller to Reduce Simultaneous Switching Noise and Electromagnetic Radiated Emission

Jonghoon KIM  Hyungsoo KIM  Joungho KIM  

IEICE TRANSACTIONS on Communications   Vol.E86-B    No.6    pp.2077-2080
Publication Date: 2003/06/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electromagnetic Compatibility(EMC)
microcontroller,  on-chip decoupling capacitor,  simultaneous switching noise,  electromagnetic radiated emission,  

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We have thoroughly investigated the effect of on-chip decoupling capacitors on the simultaneous switching noise (SSN) and the radiated emission. Furthermore, we have successfully demonstrated an efficient design method for on-chip decoupling capacitors on an 8-bit microcontroller without increasing the die size, which results in more than 10 dB of suppressed radiated emission.