Title :
CML delay cell with extended tuning range
Author_Institution :
IBM Zurich Res. Lab., Ruschlikon
Abstract :
A method is presented to extend the tuning range of current-mode logic based delay cells applied in a ring oscillator. Switching-point-optimised inverters are used to implement a feed-forward control of the delay cell´s output common-mode voltage that compensates for the non-ideal frequency tuning characteristic
Keywords :
circuit tuning; current-mode logic; delay circuits; feedforward; CML delay cell; common-mode voltage; current-mode logic; extended tuning range; feed-forward control; nonideal frequency tuning characteristic; ring oscillator; switching-point-optimised inverters;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070536
