A design of high speed AGTL+ output buffer

Abstract

AGTL+ (assisted Gunning transceiver logic+) signal transmission and interface technology are analyzed in this paper. To resolve the problem on such short high-level duration time in traditional design, we have proposed an auxiliary charged circuit structure. According to what I have analyzed, we design and realize an AGTL+ interface circuit, which is completely compatible with Itanium 2 interface and has high-speed and high noise margin. The operating frequency of circuit reaches to 500MHz by SPICE simulation in the condition of 0.18mum standard CMOS process