公开(公告)号：US20080106348A1

公开(公告)日：2008-05-08

申请号：US11984970

申请日：2007-11-26

申请人： Jarkko Routama ,  Klaus Turhanen

发明人： Jarkko Routama ,  Klaus Turhanen

IPC分类号： H03B5/36 ,  H03L1/02

CPC分类号： H03L1/025

摘要： The present invention relates to an integrated circuit for a temperature compensated crystal oscillator having an external crystal. The integrated circuit comprises a temperature compensation having one fixed or at least two selectable 3rd and/or 4th and/or 5th and/or higher order temperature compensation functions for at least one specific type of external crystal. The temperature compensation can be calibrated at one temperature, in other words without use of temperature variation, by means of an external voltage or current source overdriving a respective temperature-dependent voltage or current supplied from an internal temperature sensor to the temperature compensation.

公开(公告)号：US07816993B2

公开(公告)日：2010-10-19

申请号：US11984970

申请日：2007-11-26

申请人： Jarkko Routama ,  Klaus Turhanen

发明人： Jarkko Routama ,  Klaus Turhanen

IPC分类号： G01K7/21 ,  G01K7/25

CPC分类号： H03L1/025

摘要： The present invention relates to an integrated circuit for a temperature compensated crystal oscillator having an external crystal. The integrated circuit comprises a temperature compensation having one fixed or at least two selectable 3rd and/or 4th and/or 5th and/or higher order temperature compensation functions for at least one specific type of external crystal. The temperature compensation can be calibrated at one temperature, in other words without use of temperature variation, by means of an external voltage or current source overdriving a respective temperature-dependent voltage or current supplied from an internal temperature sensor to the temperature compensation.

摘要翻译： 本发明涉及一种具有外部晶体的温度补偿晶体振荡器的集成电路。 集成电路包括对于至少一种特定类型的外部晶体具有一个固定或至少两个可选择的第三和/或第四和/或第五和/或更高阶温度补偿功能的温度补偿。 温度补偿可以在一个温度下进行校准，换句话说，不用温度变化就可以通过外部电压或电流源来驱动相应的温度相关电压或从内部温度传感器提供的电流到温度补偿。

公开(公告)号：US20060132254A1

公开(公告)日：2006-06-22

申请号：US11296373

申请日：2005-12-08

申请人： Jarkko Routama ,  Klaus Turhanen

发明人： Jarkko Routama ,  Klaus Turhanen

IPC分类号： H03L1/00

CPC分类号： H03L1/025

摘要： The present invention relates to an integrated circuit for a temperature compensated crystal oscillator having an external crystal. The integrated circuit comprises a temperature compensation having one fixed or at least two selectable 3rd and/or 4th and/or 5th and/or higher order temperature compensation functions for at least one specific type of external crystal. The temperature compensation can be calibrated at one temperature, in other words without use of temperature variation, by means of an external voltage or current source overdriving a respective temperature-dependent voltage or current supplied from an internal temperature sensor to the temperature compensation.

摘要翻译： 本发明涉及一种具有外部晶体的温度补偿晶体振荡器的集成电路。 集成电路包括具有一个固定或至少两个可选择的第三和/或第四和/或第五和/或第五和/或第五和/ 或更高阶温度补偿功能，用于至少一种特定类型的外部晶体。 温度补偿可以在一个温度下进行校准，换句话说，不用温度变化就可以通过外部电压或电流源来驱动相应的温度相关电压或从内部温度传感器提供的电流到温度补偿。

公开(公告)号：US07403078B2

公开(公告)日：2008-07-22

申请号：US11296373

申请日：2005-12-08

申请人： Jarkko Routama ,  Klaus Turhanen

发明人： Jarkko Routama ,  Klaus Turhanen

IPC分类号： H03L1/04 ,  H03B5/32

CPC分类号： H03L1/025

摘要： The present invention relates to an integrated circuit for a temperature compensated crystal oscillator having an external crystal. The integrated circuit comprises a temperature compensation having one fixed or at least two selectable 3rd and/or 4th and/or 5th and/or higher order temperature compensation functions for at least one specific type of external crystal. The temperature compensation can be calibrated at one temperature, in other words without use of temperature variation, by means of an external voltage or current source overdriving a respective temperature-dependent voltage or current supplied from an internal temperature sensor to the temperature compensation.

摘要翻译： 本发明涉及一种具有外部晶体的温度补偿晶体振荡器的集成电路。 集成电路包括具有一个固定或至少两个可选择的第三和/或第四和/或第五和/或第五和/或第五和/ 或更高阶温度补偿功能，用于至少一种特定类型的外部晶体。 温度补偿可以在一个温度下进行校准，换句话说，不用温度变化就可以通过外部电压或电流源来驱动相应的温度相关电压或从内部温度传感器提供的电流到温度补偿。