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P‐193: EMI Reducing Techniques for Low Voltage Differential Signaling by Applying a Vertically Differential Method and Data Arrangement Optimization
Author(s) -
Takagi Ayako,
Baba Masahiro,
Okumura Haruhiko
Publication year - 2007
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2785309
Subject(s) - emi , electromagnetic interference , differential (mechanical device) , signal (programming language) , differential phase , voltage , electronic engineering , electric power transmission , interference (communication) , electrical engineering , physics , computer science , engineering , keying , channel (broadcasting) , thermodynamics , programming language
Abstract We developed EMI (Electromagnetic Interference) reducing techniques that utilize a Vertically Differential EMI suppression method (VDE) and data arrangement optimization for Low Voltage Differential Signaling (LVDS) transmission lines. This method utilizes the vertical correlation of two adjacent horizontal lines for image data. It enables data signal frequencies below half of clock signal frequency and makes reverse phase between neighboring differential pair lines. The novel technique reduced EMI by 8 dB for a 20.8‐inch ultra‐high resolution monitor.