Markus Grozing, Bernd Phillip, Manfred Berroth. CMOS ring oscillator with quadrature outputs and 100 MHz to 3.5 GHz tuning range. In José E. Franca, Rudolf Koch, editors, ESSCIRC 2003 - 29th European Solid-State Circuits Conference, Estoril, Portugal, September 16-18, 2003. pages 679-682, IEEE, 2003. [doi]
Abstract is missing.