Patent ID: 7646256
Filing Date: 2010-01-12
Classification: H03C,H03L

Abstract:
1. A controlled oscillation module comprises: a current source; an inductive load; a switching transistor section including a pair of transistors in a differential configuration operably coupled to the current source and to the inductive load to convert a control voltage into an output oscillation in accordance with an adjustable operating parameter of the controlled oscillation module; an analog sub-band section operably coupled to the pair of transistors via a direct current path, wherein the analog sub-band section provides an analog sub-band selection voltage that adjusts a steady-state bias level of the switching transistor section; and an adjustable parameter module operably coupled to produce the adjustable operating parameter, wherein the adjustable operating parameter limits a frequency range of the output oscillation with respect to a range of the control voltage, wherein the adjustable parameter module functions to adjust a steady-state bias level of the switching transistor section to limit the frequency range of the output oscillation with respect to the range of the control voltage, and wherein the adjustable parameter module comprises level shifting transistors operably coupled to the switching transistor section, wherein the steady-state bias level of the switching transistor section is adjusted by adjusting a gate voltage of the level shifting transistors.