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    • 1. 发明申请
    • DEVICE FOR COMPENSATING TEMPERATURE DRIFT OF A VCO, AND TO A METHOD THEREOF
    • 用于补偿VCO的温度漂移的装置及其方法
    • WO2013149636A1
    • 2013-10-10
    • PCT/EP2012/055931
    • 2012-04-02
    • HUAWEI TECHNOLOGIES CO., LTD.GAO, PengCHEN, YongquanLI, BingxinGREWING, Christian
    • GAO, PengCHEN, YongquanLI, BingxinGREWING, Christian
    • H03L1/02H03L7/099
    • H03L1/023H03L5/00H03L7/099H03L2207/06
    • The present invention relates to a device for compensating temperature drift of a voltage controlled oscillator (VCO) in a phased locked loop (PLL), said voltage controlled oscillator (VCO) having at least one varactor arranged for controlling an output frequency f out of said voltage controlled oscillator (VCO) by applying a tuning voltage V Tune and simultaneously applying a bias voltage V Bias on a cathode and an anode of said at least one varactor, respectively; said device comprising a monitoring circuit and a tuning circuit; said monitoring circuit having an input arranged to receive said tuning voltage V Tune and being arranged to monitor said tuning voltage V Tune and further being arranged to activate said tuning circuit based on a value of said tuning voltage VTune; and said tuning circuit having an output connected to said anode and being arranged to output said bias voltage V Bias , wherein said tuning circuit further is arranged to tune said voltage controlled oscillator (VCO) by changing said bias voltage VBias so as to compensate for a temperature drift of said voltage controlled oscillator (VCO). Furthermore, the invention also relates to a method thereof.
    • 本发明涉及一种用于补偿锁相环(PLL)中的压控振荡器(VCO)的温度漂移的装置,所述压控振荡器(VCO)具有至少一个变容二极管,该变容二极管用于控制所述 通过施加调谐电压V调谐并同时在所述至少一个变容二极管的阴极和阳极上分别施加偏置电压V偏压来控制压控振荡器(VCO); 所述装置包括监视电路和调谐电路; 所述监视电路具有被布置成接收所述调谐电压V调谐并被布置成监视所述调谐电压V调谐并进一步被布置为基于所述调谐电压VTune的值激活所述调谐电路的输入; 并且所述调谐电路具有连接到所述阳极的输出端并被布置成输出所述偏置电压V bias,其中所述调谐电路还被布置成通过改变所述偏置电压VBias来调谐所述压控振荡器(VCO),以便补偿 所述压控振荡器(VCO)的温度漂移。 此外,本发明还涉及其方法。