Title :
Burst mode packet receiver using a second order DLL
Author :
Lee, Haechang ; Yue, Chi Ho ; Palermo, Samuel ; Mai, Kenneth W. ; Horowitz, Mark
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
Abstract :
This paper describes a CDR that can be used to receive optically switched packets. Rather than using fast phase acquisition to lock onto each packet, it uses a second order delay locked loop to acquire both the frequency and phase of each source to predict future bit transitions. A 0.25 μm CMOS prototype can track frequency offsets of 100ppm to better than 0.1 ppm and can retain lock on 10Kbit 3.125Gbps packets that occur once every 2.4Mbits.
Keywords :
CMOS integrated circuits; digital-analogue conversion; optical switches; packet switching; phase locked loops; 0.25 micron; 2.4 Mbit; 3.125 Gbit/s; burst mode packet receiver; fast phase acquisition; optically switched packets; second order DLL; second order delay locked loop; Bandwidth; Clocks; Delay; Frequency; High speed optical techniques; Jitter; Optical filters; Optical receivers; Optical transmitters; Timing;
Conference_Titel :
VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on
Print_ISBN :
0-7803-8287-0
DOI :
10.1109/VLSIC.2004.1346582
