Abstract
A simple method of verifying electromagnetic interference (EMI) reduction
effects for liquid crystal display (LCD) driver integrated circuits (ICs)
is proposed. In this paper, we discuss correlations between radiated emissions
and high-frequency currents of power system at three different levels: print
circuit board (PCB) level, chip level, and functional circuit level. The EMI
design points for LCD driver ICs are presented too. Simulated and measured
results prove that our EMI design effectively reduces LCD EMI noise.
© 2007 IEEE
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