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1. 发明申请

WO2015162055A1 OSCILLATOR CROSSTALK COMPENSATION 审中-公开
标题翻译：振荡器CROSSTALK补偿
公开(公告)号：WO2015162055A1
公开(公告)日：2015-10-29
申请号：PCT/EP2015/058283
申请日：2015-04-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： NILSSON, Magnus
IPC分类号： H03L7/099
CPC分类号： H03L7/085 , H03B5/1234 , H03C3/095 , H03C3/14 , H03K3/0315 , H03L7/06 , H03L7/0802 , H03L7/099 , H03L7/23 , H03L2207/06
摘要： Systems and methods for mitigating crosstalk between controlled oscillators of Phase-Locked Loops (PLLs) are disclosed. In one embodiment, a system includes a first PLL including a first controlled oscillator and a second PLL. The system further includes a compensation signal generator adapted to generate a compensation signal at an offset frequency that is approximately equal to an offset between output frequencies of the first and second PLLs and apply the compensation signal to the first controlled oscillator such that the output signal of the first controlled oscillator is modulated by the compensation signal. An amplitude and a phase of the compensation signal are such that, when the compensation signal is applied to the first controlled oscillator, a crosstalk signal output by the first controlled oscillator resulting from crosstalk from the second controlled oscillator of the second PLL to the first controlled oscillator of the first PLL is mitigated.
摘要翻译：公开了用于减轻锁相环（PLL）的受控振荡器之间的串扰的系统和方法。在一个实施例中，系统包括包括第一受控振荡器和第二PLL的第一PLL。该系统还包括补偿信号发生器，其适于产生一个偏移频率的补偿信号，该补偿信号近似等于第一和第二PLL的输出频率之间的偏移量，并将补偿信号施加到第一受控振荡器，使得输出信号第一个受控振荡器由补偿信号调制。补偿信号的振幅和相位使得当补偿信号被施加到第一受控振荡器时，由第一受控振荡器输出的串扰信号由来自第二PLL的第二受控振荡器的串扰导致到第一受控振荡器第一个PLL的振荡器得到缓解。

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