A 1.62/2.7-Gb/s adaptive transmitter with two-tap preemphasis using a propagation-time detector
Journal
IEEE Transactions on Circuits and Systems II: Express Briefs
Journal Volume
57
Journal Issue
3
Pages
178-182
Date Issued
2010-03
Author(s)
Shih-Yuan Kao
Abstract
A 1.62/2.7-Gb/s adaptive transmitter with two-tap preemphasis is presented. The tap coefficients are adjusted by detecting the propagation time through the channel with different lengths. This adaptive transmitter is fabricated in 0.13-μm CMOS technology, and the core area occupies 0.25 × 0.15 mm 2. The maximum power consumption from a 1.2-V supply is 32.4 mW at 2.7 Gb/s. For a 40-in FR4 PCB trace with a 12.3-dB loss, the measured RMS and peak-to-peak jitters of the recovered data are 30 and 231 ps, respectively, for a 1.62-Gb/s pseudorandom binary sequence (PRBS) of 231 - 1. For a 20-in FR4 PCB trace with a 10.6-dB loss, the RMS and peak-to-peak jitters are 21 and 144 ps, respectively, for a 2.7-Gb/s PRBS of 231 - 1. For both cases, the measured bit error rates are less than 1-12. © 2010 IEEE.
Subjects
Coefficient adaptation; Intersymbol interference (ISI) effect; Preemphasis; Transmitter; Video Electronics Standards Association (VESA) DisplayPort
Other Subjects
Binary sequences; Jitter; Organic pollutants; Adaptive transmitters; CMOS technology; Coefficient adaptation; Displayport; Peak-to-peak; Pre-emphasis; Propagation time; Pseudo-random binary sequences; Transmitters
Type
journal article