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Improved PCI-Express Receiver

IP.com Disclosure Number: IPCOM000029460D
Original Publication Date: 2004-Jun-29
Included in the Prior Art Database: 2004-Jun-29

Publishing Venue



The circuit described here makes use of a common gate stage to solve the problem of detecting differential signals having their common mode biased at ground in a single power supply environment, as is the case with the PCI-Express interface. It allows for the use of higher performance N-channel devices and takes advantage of the inherently low source input impedance to match the 50 ohm interface.