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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Amamiya, Y. Kaeriyama, S. Noguchi, H. Yamazaki, Z. Yamase, T. Hosoya, K. Okamoto, M. Tomari, S. Yamaguchi, H. Shoda, H. Ikeda, H. Tanaka, S. Takahashi, T. Ohhira, R. Noda, A. Hijioka, K. Tanabe, A. Fujita, S. Kawahara, N. |
| Copyright Year | 2009 |
| Description | Author affiliation: NEC, Tokyo, Japan (Tomari, S.; Yamaguchi, H.; Shoda, H.; Ikeda, H.; Tanaka, S.) || NEC Engineering, Kawasaki, Japan (Okamoto, M.) || NEC, Kawasaki, Japan (Amamiya, Y.; Noguchi, H.; Yamazaki, Z.; Yamase, T.; Hosoya, K.; Noda, A.; Fujita, S.) || NEC, Sagamihara, Japan (Kaeriyama, S.; Ohhira, R.) || NEC, Chiba, Japan (Takahashi, T.; Kawahara, N.) || NEC Electronics, Sagamihara, Japan (Hijioka, K.; Tanabe, A.) |
| Abstract | As 40Gb/s optical communication systems enter the commercial stage, the transceiver, which is a key component of these systems, requires lower power dissipation, a size reduction, and a wider frequency range to meet the requirements of several standards, such as OC-768/STM-256 (39.8Gb/s), OTU-3 (43.0Gb/s), and 4×10GbE-LANPHY (44.6Gb/s). 40Gb/s transceivers have already been reported in SiGe-based technology.However, they dissipate more than 10W in total and do not support 39.8-to-44.6Gb/s wide-range operations [1–2]. There have been recent reports on CMOS transceivers, but their speed performance is still less than 40Gb/s and their output signal suffers from large jitter [3–5]. In this paper, 40Gb/s SFI-5-compliant TX and RX chips in 65nm CMOS technology consume 2.8W each. This low power dissipation allows for a small and low-cost plastic BGA package. The TX has a full-rate clock architecture that is based on a 40GHz VCO, a 40Gb/s retiming D-FF, and 40GHz clock-distribution circuits that lead to a low jitter of 0.57ps and 3.1ps at 40Gb/s. A 40/20GHz clock-timing-adjustment circuit based on a phase interpolator is used to ensure wide-range error-free operations (BER ≪ $10^{−12})$ at 39.8 to 44.6Gb/s. A quadruple loop architecture is introduced in the CDR circuit of the RX, resulting in a 38Gb/s error-free operation (BER ≪ $10^{−12})$ at $2^{31}−1$ PRBS with a low rms jitter of 210fs in the recovered clock. |
| File Size | 1197008 |
| File Format | |
| ISBN | 9781424434589 |
| DOI | 10.1109/ISSCC.2009.4977456 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-02-08 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transceivers Clocks Circuits CMOS technology Jitter Error-free operation Bit error rate Power dissipation Plastic packaging Voltage-controlled oscillators |
| Content Type | Text |
| Resource Type | Article |
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