By Topic

Decision Feedback Equalizer Architectures With Multiple Continuous-Time Infinite Impulse Response Filters

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Shahramian, S. ; Univ. of Toronto, Toronto, ON, Canada ; Yasotharan, H. ; Carusone, A.C.

Decision feedback equalizer (DFE) architectures with varying numbers of discrete-time taps and continuous-time infinite impulse response (IIR) filters are compared for use in typical wireline channels. In each case, the DFE coefficients are optimized to minimize a cost function that equally weights both jitter and vertical eye opening. Even when some reflections are present (e.g., backplane channels) continuous-time IIR taps can be effective if their filter coefficients are properly optimized. Using a DFE architecture with only two IIR filters provides adequate results for both a 26-dB loss coax cable and a 16" FR-4 backplane channel at 10 Gb/s while keeping the DFE complexity low. Furthermore, the implementation and experimental results of a DFE with multiple (three) IIR filters is reported. Fabricated in a 0.13 μm CMOS process, the DFE consumes 17.3 mW from a 1.2 V supply. A bit error rate (BER) of 10-12 was achieved at a data rate of 3.7 Gb/s.

Published in:

Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:59 ,  Issue: 6 )