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公开(公告)号:US08750805B2
公开(公告)日:2014-06-10
申请号:US12969800
申请日:2010-12-16
IPC分类号: H04B1/00
CPC分类号: H03K3/017 , H04B2215/067
摘要: A digital system includes a spur calculator that computes harmonics of a frequency of a digital clock signal and that identities a harmonic that lies in a frequency band of operation of a radio frequency circuit. A duty cycle computation module receives the harmonic and computes a duty cycle for the harmonic. Further, a clock generator that is coupled to the duty cycle computation block generates a digital clock signal of the frequency and with the duty cycle such that amplitude of spur caused due to the harmonic is suppressed.
摘要翻译: 数字系统包括一个辅助计算器,其计算数字时钟信号的频率的谐波,并且识别位于射频电路的操作频带中的谐波。 占空比计算模块接收谐波并计算谐波的占空比。 此外,耦合到占空比计算块的时钟发生器产生频率和占空比的数字时钟信号,从而抑制由谐波引起的杂散振幅。
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2.
公开(公告)号:US20120154010A1
公开(公告)日:2012-06-21
申请号:US12969800
申请日:2010-12-16
IPC分类号: H03K3/00
CPC分类号: H03K3/017 , H04B2215/067
摘要: A digital system includes a spur calculator that computes harmonics of a frequency of a digital clock signal and that identities a harmonic that lies in a frequency band of operation of a radio frequency circuit. A duty cycle computation module receives the harmonic and computes a duty cycle for the harmonic. Further, a clock generator that is coupled to the duty cycle computation block generates a digital clock signal of the frequency and with the duty cycle such that amplitude of spur caused due to the harmonic is suppressed.
摘要翻译: 数字系统包括一个辅助计算器,其计算数字时钟信号的频率的谐波,并且识别位于射频电路的操作频带中的谐波。 占空比计算模块接收谐波并计算谐波的占空比。 此外,耦合到占空比计算块的时钟发生器产生频率和占空比的数字时钟信号,从而抑制由谐波引起的杂散振幅。
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