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A 15Gb/s 0.5mW/Gb/s 2-Tap DFE Receiver with Far-End Crosstalk Cancellation

Nazari, Meisam Honarvar and Emami-Neyestanak, Azita (2011) A 15Gb/s 0.5mW/Gb/s 2-Tap DFE Receiver with Far-End Crosstalk Cancellation. In: 2011 IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC). IEEE , Piscataway, NJ, pp. 446-448. ISBN 978-1-61284-303-2.

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In this paper, we present a low-power receiver that supports high data rates over bandwidth-limited and coupled links. The receiver employs a half-rate 2-tap speculative DFE architecture with a far-end cross-talk (FEXT) cancellation technique. Figure 25.6.1 shows the top-level architecture of the DFE receiver. Conventionally, analog taps of the equalizer are implemented using current mode summers, thus the power consumption of the DFE increases proportion ally with the number of taps. In the proposed architecture, a switched-capacitor S/H is employed to sample the input signal and combine it with the feedback coefficients at the front-end of the receiver, as shown in Fig. 25.6.2 (S/H/summer). In this design, the switched-capacitor network is modified to support two taps of DFE without any signal loss. This technique can be further extended to realize more number of taps. The extra power due to sampling capacitors, switches and voltage-mode DACs is very small.

Item Type:Book Section
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Emami-Neyestanak, Azita0000-0003-2608-9691
Additional Information:©2011 IEEE. The authors acknowledge the support of NSF, Intel, and the C2S2 Focus Center, funded under the Focus Center Research Program.
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C2S2 Focus Center Focus Center Research ProgramUNSPECIFIED
Record Number:CaltechAUTHORS:20140820-145943216
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Official Citation:Nazari, M.H.; Emami-Neyestanak, A, "A 15Gb/s 0.5mW/Gb/s 2-tap DFE receiver with far-end crosstalk cancellation," Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International , vol., no., pp.446,448, 20-24 Feb. 2011 doi: 10.1109/ISSCC.2011.5746391
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48744
Deposited By: Kristin Buxton
Deposited On:20 Aug 2014 22:28
Last Modified:03 Oct 2019 07:07

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