Jaehong Ko Wookwan Lee Soo-Won Kim 2.5GHz PLL with current matching charge-pump for 10Gbps transmitter design. 122-125 2005 conf/glvlsi/2005 ACM Great Lakes Symposium on VLSI http://doi.acm.org/10.1145/1057661.1057691 db/conf/glvlsi/glvlsi2005.html#KoLK05