Title :
A Merged CMOS Digital Near-End Crosstalk Canceller and Analog Equalizer for Multi-Lane Serial-Link Receivers
Author :
Lu, Jian-Hao ; Liu, Shen-Iuan
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A digital near-end crosstalk (NEXT) canceller merged with an analog equalizer for multi-lane serial-link receivers has been realized in 0.13 ¿m CMOS technology. By applying the proposed sign-sign block least-mean-square (SSB-LMS) circuit, a 5 Gb/s pseudorandom binary sequence (PRBS) of 2 31-1 suffered from both the channel loss and NEXT over 10- and 20-inch FR4 traces with the width of 5-mil and the spacing of 7-mil is successfully equalized. The measured bit error rate (BER) is 10-12 and the measured maximum peak-to-peak jitter is 49.7 ps. This chip occupies 0.56 × 0.76 mm2 and the whole circuit including buffers consumes 177 mW from a 1.2 V supply.
Keywords :
CMOS analogue integrated circuits; CMOS digital integrated circuits; FIR filters; binary sequences; crosstalk; equalisers; error statistics; jitter; least mean squares methods; losses; random sequences; receivers; CMOS digital near-end crosstalk canceller; FIR filter; FR4 traces; NEXT canceller; analog equalizer; bit error rate; bit rate 5 Gbit/s; channel loss; distance 7 mil; finite impulse response filter; jitter; multilane serial-link receiver; power 177 mW; pseudorandom binary sequence; sign-sign block least-mean-square circuit; size 0.13 mum; size 0.56 mm; size 0.76 mm; size 10 inch; size 20 inch; size 5 mil; voltage 1.2 V; Bit error rate; CMOS technology; Circuits; Crosstalk; Dielectric losses; Equalizers; Finite impulse response filter; Interference; Loss measurement; Semiconductor device measurement; Equalizer; finite-impulse-response (FIR) filter; near-end crosstalk (NEXT); sign-sign block least-mean-square (SSB-LMS) algorithm;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2009.2037474
