发明申请
- 专利标题： VARIABLE FREQUENCY CIRCUIT CONTROLLER
- 专利标题（中）： 可变频率电路控制器
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申请号： US13427616申请日： 2012-03-22
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公开(公告)号： US20120242379A1公开(公告)日： 2012-09-27
- 发明人: Thomas Obkircher , William J. Domino , Bipul Agarwal
- 申请人： Thomas Obkircher , William J. Domino , Bipul Agarwal
- 申请人地址： US MA Woburn
- 专利权人： SKYWORKS SOLUTIONS, INC.
- 当前专利权人： SKYWORKS SOLUTIONS, INC.
- 当前专利权人地址： US MA Woburn
- 主分类号： H03B19/00
- IPC分类号： H03B19/00
摘要：
Apparatus and methods for distributing spurious tones through the frequency domain are disclosed. One such apparatus can include a dithering circuit configured to generate a sequence of numbers that exhibit statistical randomness and a variable frequency circuit configured to adjust a frequency of an output based on the sequence of numbers so as to spread energy of spurious tones in a frequency response of the output to lower a noise floor. In one example, spurious tones can be reduced in a negative voltage generator of a radio frequency (RF) attenuator.
公开/授权文献
- US08823459B2 Variable frequency circuit controller 公开/授权日：2014-09-02