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公开(公告)号：EP1168627B1
公开(公告)日：2005-05-11
申请号：EP01113077.0
申请日：2001-05-29
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公开(公告)号：EP1008997B1
公开(公告)日：2004-10-27
申请号：EP99124485.6
申请日：1999-12-08
IPC分类号： H01F17/00
CPC分类号： H01F17/0006 , H01F17/0013 , H01F27/34 , Y10T29/4902
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公开(公告)号：EP1168627A2
公开(公告)日：2002-01-02
申请号：EP01113077.0
申请日：2001-05-29
摘要： A frequency synthesizer is provided with a prescaler 2 and a counter 3, which output a signal having a frequency generated by frequency-dividing an output signal of a VCO 1; a reference frequency divider 5 for frequency-dividing a frequency of a reference signal of a reference signal source 4; a frequency adjusting meas 9 operated in such that a frequency error between the output signal of the counter 5 and the output signal of the reference frequency divider 5 is detected, and in response to this detection result, such a signal is outputted by which either a capacitor value or an inductor value employed in a resonant circuit of the VCO 1 is switched; and also a bias control means for applying an arbitrary voltage V1 to a control voltage terminal of the VCO 1 so as to bring an output signal of a charge pump 7 into a high impedance state when the frequency adjusting means 9 is operated. Since the resonant frequency of the resonant circuit is changed in response to an actual oscillation frequency of the VCO 1, the frequency synthesizer can be phase-locked at a desirable frequency. Also, since the VCO can be manufactured in the IC form, the compact VCO can be made in low cost.
摘要翻译： 频率合成器设置有预分频器2和计数器3，该预分频器2和计数器3输出具有通过对VCO 1的输出信号进行分频而产生的频率的信号; 用于对参考信号源4的参考信号的频率进行分频的参考分频器5; 以使得计数器5的输出信号与参考分频器5的输出信号之间的频率误差被检测到的频率调整装置9被操作，并且响应于该检测结果，输出这样一个信号： 在VCO 1的谐振电路中使用的电容器值或电感值被切换; 以及用于将任意电压V1施加到VCO1的控制电压端子的偏置控制装置，以便当频率调节装置9工作时使电荷泵7的输出信号变为高阻抗状态。 由于谐振电路的谐振频率响应于VCO1的实际振荡频率而改变，所以频率合成器可以以期望的频率被锁相。 此外，由于可以以IC形式制造VCO，所以可以以低成本制造紧凑型VCO。
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4.发明公开Semiconductor differential circuit with transistors having a virtual ground 审中-公开差动半导体电路，包括具有一个虚拟接地连接的晶体管
公开(公告)号：EP1420450A2
公开(公告)日：2004-05-19
申请号：EP03026151.5
申请日：2003-11-13
IPC分类号： H01L27/07 , H01L27/088
CPC分类号： H03K3/354 , H01L27/0203 , H01L27/0738
摘要： A semiconductor differential circuit comprising a semiconductor substrate, a first semiconductor device on the semiconductor substrate having a gate electrode for having one of differential signals conveyed thereto and a drain electrode for outputting one of the differential signals controlled by the gate electrode, a second semiconductor device formed on the semiconductor substrate having a gate electrode for having the other of the differential signals conveyed thereto and a drain electrode for outputting the other of the differential signals controlled by the gate electrode, and wherein the drain electrode and drain electrode are placed in the proximity so that, at a predetermined frequency, it is equivalent to the one in which the drain electrode is grounded via a predetermined resistance, and the drain electrode is grounded via the predetermined resistance.
摘要翻译： 一种半导体差动电路，包括：半导体基片，在具有栅电极的半导体衬底的第一半导体器件具有差分信号中的一个传送到其与用于输出的漏电极婷由栅电极，第二半导体装置控制的差动信号的一个 形成在具有用于具有其他的差分信号的栅电极的半导体衬底输送到其与用于输出铃声其他由栅电极控制的差动信号的漏电极，和worin漏极电极和漏电极中的接近被放置 使得在一个预定的频率，它是等效于在哪个漏极电极经由规定的电阻接地的一个，和所述漏电极通过所述预定电阻接地。
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公开(公告)号：EP1008997A1
公开(公告)日：2000-06-14
申请号：EP99124485.6
申请日：1999-12-08
IPC分类号： H01F17/00
CPC分类号： H01F17/0006 , H01F17/0013 , H01F27/34 , Y10T29/4902
摘要： A high-Q inductor for high frequency, having a plurality of inductor elements formed in a plurality of IC wiring layers with a connection formed therebetween. The directions of the magnetic fields generated by the respective inductor elements are substantially the same. With this construction, the section of the inductor is increased reducing the serial resistance component and an influence of a skin effect in a high-frequency range is eliminated increasing the Q value.
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6.发明公开Semiconductor differential circuit with transistors having a virtual ground 审中-公开差动半导体电路，包括具有一个虚拟接地连接的晶体管
公开(公告)号：EP1420450A3
公开(公告)日：2006-12-13
申请号：EP03026151.5
申请日：2003-11-13
IPC分类号： H01L27/07 , H01L27/088
CPC分类号： H03K3/354 , H01L27/0203 , H01L27/0738
摘要： A semiconductor differential circuit comprising a semiconductor substrate, a first semiconductor device on the semiconductor substrate having a gate electrode for having one of differential signals conveyed thereto and a drain electrode for outputting one of the differential signals controlled by the gate electrode, a second semiconductor device formed on the semiconductor substrate having a gate electrode for having the other of the differential signals conveyed thereto and a drain electrode for outputting the other of the differential signals controlled by the gate electrode, and wherein the drain electrode and drain electrode are placed in the proximity so that, at a predetermined frequency, it is equivalent to the one in which the drain electrode is grounded via a predetermined resistance, and the drain electrode is grounded via the predetermined resistance.
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公开(公告)号：EP1498913B1
公开(公告)日：2006-05-31
申请号：EP04025327.0
申请日：1999-12-08
IPC分类号： H01F17/00
CPC分类号： H01F17/0006 , H01F17/0013 , H01F27/34 , Y10T29/4902
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公开(公告)号：EP1498913A1
公开(公告)日：2005-01-19
申请号：EP04025327.0
申请日：1999-12-08
IPC分类号： H01F17/00
CPC分类号： H01F17/0006 , H01F17/0013 , H01F27/34 , Y10T29/4902
摘要： A high-Q inductor for high frequency, having a plurality of inductor elements formed in a plurality of IC wiring layers with a connection formed therebetween. The directions of the magnetic fields generated by the respective inductor elements are substantially the same. With this construction, the section of the inductor is increased reducing the serial resistance component and an influence of a skin effect in a high-frequency range is eliminated increasing the Q value.
摘要翻译： 一种用于高频的高Q电感器，具有形成在多个IC布线层中的多个电感器元件，其间形成有连接。 由各个电感器元件产生的磁场的方向基本相同。 利用这种结构，电感器的部分增加，降低了串联电阻分量，消除了在高频范围内的皮肤效应的影响，增加了Q值。
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公开(公告)号：EP1168627A3
公开(公告)日：2003-10-15
申请号：EP01113077.0
申请日：2001-05-29
摘要： A frequency synthesizer is provided with a prescaler 2 and a counter 3, which output a signal having a frequency generated by frequency-dividing an output signal of a VCO 1; a reference frequency divider 5 for frequency-dividing a frequency of a reference signal of a reference signal source 4; a frequency adjusting meas 9 operated in such that a frequency error between the output signal of the counter 5 and the output signal of the reference frequency divider 5 is detected, and in response to this detection result, such a signal is outputted by which either a capacitor value or an inductor value employed in a resonant circuit of the VCO 1 is switched; and also a bias control means for applying an arbitrary voltage V1 to a control voltage terminal of the VCO 1 so as to bring an output signal of a charge pump 7 into a high impedance state when the frequency adjusting means 9 is operated. Since the resonant frequency of the resonant circuit is changed in response to an actual oscillation frequency of the VCO 1, the frequency synthesizer can be phase-locked at a desirable frequency. Also, since the VCO can be manufactured in the IC form, the compact VCO can be made in low cost.
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