Advances in Radio Science www.adv-radio-sci.net 1684-9965 1684-9973 3 Kleinheubacher Berichte 2004 2005 10.5194/ars-3-293-2005 http://www.adv-radio-sci.net/3/293/2005/ http://www.adv-radio-sci.net/3/293/2005/ars-3-293-2005.html http://www.adv-radio-sci.net/3/293/2005/ars-3-293-2005.pdf 293 297 2005-05-13 10Gb/s Bang-Bang Clock and Data Recovery (CDR) for optical transmission systems N. Dodel H. Klar MergeOptics GmbH, Am Borsigturm 17, 13507 Berlin, Germany Technical University of Berlin, Institut für Technische Informatik und Mikroelektronik, Einsteinufer 17, 10587 Berlin, Germany A Bang-Bang Clock-Data Recovery (CDR) for 10Gb/s optical transmission systems is presented. A direct modulated architecture is used for the design. Its loop characteristics can be derived using an analogy to Σ Δ theory. The circuit was produced and measured in a commercial 0.25μm BiCMOS technology with a transition frequency <i>f</i>_<i>T</i>70=GHz.