Title :
A pseudo-differential current-mode interface with point-to-point cascade bus architecture (WiseBus™) for large panel LCD systems
Author :
Il Kwon Chang ; Yong Weon Jeon ; Jang Sub Lee ; Jong Hoon Hong ; Chang Sik Choi ; Suki Kim
Author_Institution :
Samsung Electron., Yongin, South Korea
Abstract :
A new point-to-point cascade bus architecture and pseudo-differential current signaling present, which is called WiseBus™. The proposed transmitter using capacitive coupling error cancellation and fast cut-off scheme compensates an inherent charge error and duty error of output current. The receiver makes high common noise rejection between reference and data using perfectly matched gain-enhanced regulated cascode buffer. The advantage of proposed interface is very low power consumption and low EMI using small current signal (±100μA) and small signal loop area, and it is suitable for large size LCD TV due to point-to-point cascade bus configuration.
Keywords :
current-mode circuits; driver circuits; flat panel displays; liquid crystal displays; low-power electronics; LCD TV; WiseBus; capacitive coupling error cancellation; cascode buffer; charge error; duty error; large panel LCD system; liquid crystal display; noise rejection; point-to-point cascade bus architecture; power consumption; pseudo-differential current signaling; pseudo-differential current-mode interface; Circuits; Clocks; Computer errors; Electromagnetic interference; Energy consumption; Liquid crystal displays; Signal resolution; TV; Timing; Transmitters;
Conference_Titel :
VLSI Circuits, 2005. Digest of Technical Papers. 2005 Symposium on
Print_ISBN :
4-900784-01-X
DOI :
10.1109/VLSIC.2005.1469373