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An up to 36Gbps analog baseband equalizer and demodulator for mm-wave wireless communication in 28nm CMOS

Host Publication: 2017 IEEE Custom Integrated Circuits Conference

Authors: O. Mattia, D. Guermandi, G. Torfs and P. Wambacq

UsePubPlace: Austin, TX

Publisher: IEEE

Publication Date: Jul. 2017

Number of Pages: 4

ISBN: 978-1-5090-5192-2


Abstract:

Future mm-Wave wireless links with datarates of 20Gbps and more will result in prohibitive power consumption at the front end of the DSPs. The use of analog or mixed-signal baseband processing, however, can significantly relax the receiver power budget. The most critical block for such a baseband is the decision feedback equalizer, that compensates for the line-of-sight multi-path components and demodulates the signal. In this paper we present a complex DFE capable of handling 16QAM data at 9GHz RF bandwidth, aggregating all 4 channels of the 60GHz IEEE802.11ad band and resulting in a maximum datarate of 36Gbps. It is able to compensate for 0.7 cursor amplitude of inter-symbol interference spread over 5 complex taps, while the minimum input SNR is 26dB. It consumes 138mW from a 0.9V supply, achieving 3.8mW/Gbps power efficiency including clock distribution.

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