(19)

(11)

EP 1 861 927 A1

(12)

(43) Date of publication: 05.12.2007 Bulletin 2007/49 (21) Application number: 06708676.9 (22) Date of filing: 07.03.2006

(51) International Patent Classification (IPC):  H03K 3/00(2006.01) (86) International application number: PCT/EP2006/060529 (87) International publication number: WO 2006/094985 (14.09.2006 Gazette 2006/37)

(84) Designated Contracting States: DE FR GB (30) Priority: 09.03.2005 DE 102005010869 02.03.2006 US 366348 (71) Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH 85356 Freising (DE)	(72) Inventors: ROMBACH, Gerd 85354 Freising (DE) DIETEL, Markus 80469 Munich (DE) (74) Representative: Holt, Michael  Texas Instruments Limited European Patents Department 800 Pavilion Drive Northampton, NN4 7YL Northampton, NN4 7YL (GB)