1. A 1.4 pJ/bit, Power-Scalable 16×12 Gb/s Source-Synchronous I/O With DFE Receiver in 32 nm SOI CMOS Technology.
- Author
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Dickson, Timothy O., Liu, Yong, Rylov, Sergey V., Agrawal, Ankur, Kim, Seongwon, Hsieh, Ping-Hsuan, Bulzacchelli, John F., Ferriss, Mark, Ainspan, Herschel A., Rylyakov, Alexander, Parker, Benjamin D., Beakes, Michael P., Baks, Christian, Shan, Lei, Kwark, Young, Tierno, Jose A., and Friedman, Daniel J.
- Subjects
CLOCK distribution networks ,COMPUTER systems ,BANDWIDTHS ,SILICON ,WAVEGUIDES - Abstract
A power-scalable 2 Byte I/O operating at 12 Gb/s per lane is reported. The source-synchronous I/O includes controllable TX driver amplitude, flexible RX equalization, and multiple deskew modes. This allows power reduction when operating over low-loss, low-skew interconnects, while at the same time supporting higher-loss channels without loss of bandwidth. Transceiver circuit innovations are described including a low-skew transmission-line clock distribution, a 4:1 serializer with quadrature quarter-rate clocks, and a phase rotator based on current-integrating phase interpolators. Measurements of a test chip fabricated in 32 nm SOI CMOS technology demonstrate 1.4 pJ/b efficiency over 0.75” Megtron-6 PCB traces, and 1.9 pJ/b efficiency over 20” Megtron-6 PCB traces. [ABSTRACT FROM PUBLISHER]
- Published
- 2015
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