公开(公告)号：US20150333694A1

公开(公告)日：2015-11-19

申请号：US14584726

申请日：2014-12-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： DANIELLE GRIFFITH ,  PER TORSTEIN ROINE ,  JAMES MURDOCK ,  RYAN SMITH

IPC: H03B5/06 ,  H03B5/36

CPC classification number: H03B5/06 ,  H03B5/362 ,  H03B5/364 ,  H03B5/368

Abstract: A circuit includes a crystal oscillator to generate an output frequency for a circuit. A driving oscillator generates a startup signal having a driving frequency that is provided to activate the crystal oscillator. The driving frequency of the startup signal is varied over a range of frequencies that encompass the operating frequency of the crystal oscillator to facilitate startup of the crystal oscillator.

Abstract translation: 电路包括用于产生电路的输出频率的晶体振荡器。 驱动振荡器产生具有提供以激活晶体振荡器的驱动频率的启动信号。 启动信号的驱动频率在包含晶体振荡器的工作频率的频率范围内变化以便于启动晶体振荡器。