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—A folded multitap transmitter equalizer and multitap receiver equalizer counteract the losses and reflections present in the backplane environment. A flexible 2-PAM/4-PAM clock data recovery circuit uses select transitions for receive clock recovery. Bit-error rate less than 10 15 and power equal to 40 mW/Gb/s has been measured when operating over a 20-in(More)
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—This paper describes an adaptively equalized, dual-mode (PAM2 one-tap DFE/PAM4) 0.13 m CMOS transceiver chip, and the techniques used to continuously adapt the link. Interestingly, with only minor modification the same hardware needed to implement a PAM4 system can be used to implement a PAM2 loop-unrolled single-tap decision-feedback equalization (DFE)(More)
Common-mode signaling is effectively used to create a backchannel communication path over the existing pair of wires for a self-contained adaptive differential high-speed link transceiver cell [1]. A transceiver chip was designed in 0.13µm CMOS to demonstrate the feasibility of simultaneous differential and common-mode signaling. The design uses a(More)
BACKGROUND The Kenyan Ministry of Health and partners implemented a community-based integrated prevention campaign (IPC) in Western Kenya in 2008. The aim of this study was to determine whether the IPC, compared to Voluntary Counselling and Testing (VCT) services, was able to identify HIV positive individuals earlier in the clinical course of HIV infection(More)
– High speed serial data transceivers often employ sophisticated communication techniques to balance out the effects of material loss and reflections. Link control hardware is required to initialize and adapt the link in a variety of signaling environments, often using loops with time constants which are orders of magnitude larger than the data unit(More)
A 1-10Gbps receiver analog front end in 0.13�m CMOS enables a SERDES cell for backplane serial communications using differential PAM2, PAM4, or PAM2 partial response signaling with adaptive equalization. Dynamic sampler swapping and various built-in diagnostic capabilities enable receiver calibration and self-characterization with accuracy of < 0.4% UI in(More)
1. Call to Order and Announcements Chair David Driscoll called the meeting to order at 4:30 p.m. Mr. Driscoll started the meeting by welcoming everyone to Boston. He extended a special welcome to the newest Board members: former Governor James Geringer (Wyoming) and former Governor Ronnie Musgrove (Mississippi). Mr. Driscoll then acknowledged the recent(More)
In spring of 2012, Harvard University and MIT announced the launch of edX, an open online learning platform that allowed anyone with an internet connection to register and complete online courses. The edX mission included the improvement of on-campus, residential education as well as advancing educational research. This report documents the impact of an(More)