Patent ID: 7489209
Filing Date: 2009-02-10
Classification: H03B

Abstract:
1. An oscillator for use within an implantable medical device comprising: a resonator; a first switch coupled to a first resistive network, the first resistive network providing a first electrical path through the first switch and a second electrical path bypassing the first switch, wherein the second electrical path with the first switch opened has a substantially higher resistance than the first electrical path when the first switch is closed; a second switch coupled to a second resistive network, the second resistive network providing a third electrical path through the second switch and a fourth electrical path bypassing the second switch, wherein the fourth electrical path with the second switch opened has a substantially higher resistance than the third electrical path when the second switch is closed; and a transistor, the base terminal coupled with the first resistive network and the resonator and the emitter terminal coupled to the second resistive network, wherein