US 6,982,605 B2
Transformer coupled oscillator and method
Jyoti Mondal, Palatine, Ill. (US); Neil Calanca, Crown Point, Ind. (US); Yan Cui, Gurnee, Ill. (US); and Joseph Golat, Evanston, Ill. (US)
Assigned to Freescale Semiconductor, Inc., Austin, Tex. (US)
Filed on May 01, 2003, as Appl. No. 10/427,581.
Prior Publication US 2004/0222861 A1, Nov. 11, 2004
Int. Cl. H03B 5/00 (2006.01)
U.S. Cl. 331—117R 20 Claims
OG exemplary drawing
 
1. An oscillator comprising:
a resonator portion comprising a capacitive element coupled to an inductive element, wherein the inductive element comprises a primary coil of a transformer; and
a signal balancing portion comprising a secondary coil of the transformer, the secondary coil having a grounded center tap offset from a center location of the secondary coil.