发明授权
US06559730B1 Electronic switch with static control voltage for dynamically switching capacitance in a frequency-adjustable crystal oscillator
失效
具有静态控制电压的电子开关，可在频率可调的晶体振荡器中动态切换电容
- 专利标题： Electronic switch with static control voltage for dynamically switching capacitance in a frequency-adjustable crystal oscillator
- 专利标题（中）： 具有静态控制电压的电子开关，可在频率可调的晶体振荡器中动态切换电容
-
申请号： US09609356申请日： 2000-07-05
-
公开(公告)号： US06559730B1公开(公告)日： 2003-05-06
- 发明人: Dennis F. Marvin , Jaroslaw Edward Adamski
- 申请人： Dennis F. Marvin , Jaroslaw Edward Adamski
- 主分类号： H03B532
- IPC分类号： H03B532
摘要：
A controllable crystal oscillator includes a crystal resonator having first and second electrodes, a gain stage having first and second terminals connected to the first and second electrodes for starting and maintaining the oscillation, first and second capacitor banks connected to the first and second terminals for providing a capacitive load to the resonator, and first and second dynamic switches interconnected between the terminals and the respective capacitor banks for cycling the capacitor banks in and out of connection.