公开(公告)号：US08106479B1

公开(公告)日：2012-01-31

申请号：US12243146

申请日：2008-10-01

Applicant: Lalitkumar Nathawad

Inventor： Lalitkumar Nathawad

IPC: H01L27/00

CPC classification number: H01L28/10 ,  H01L23/5223 ,  H01L23/5225 ,  H01L23/5227 ,  H01L27/0629 ,  H01L28/40 ,  H01L2924/0002 ,  H01L2924/00

Abstract: Integrated circuits are disclosed including at least one inductor-capacitor component, where each of the inductor-capacitor components includes an inductor and a capacitor constructed between the inductor and a substrate. The inductor includes at least one metal loop over a shield pattern forming a first capacitor terminal over patterned oxide layer with a second capacitor layer between the patterned oxide layer and the substrate.

公开(公告)号：US08010072B1

公开(公告)日：2011-08-30

申请号：US12141499

申请日：2008-06-18

Applicant: Lalitkumar Nathawad

Inventor： Lalitkumar Nathawad

IPC: H04B1/06 ,  H04B7/00

CPC classification number: H03L7/102 ,  H03L7/0895 ,  H03L7/1072 ,  H03L7/18 ,  H03L7/1974

Abstract: A technique for improving frequency synthesizer performance by frequency-compensating charge pump current in order to maintain a consistent loop bandwidth over a wide operating frequency range is described. A relationship between the capacitance value associated with a voltage controlled oscillator resonant tank and the magnitude of current pulses in a related charge pump is exploited to bound the loop bandwidth of the frequency synthesizer over both operating frequency and process variation. A control state machine generates digital coarse tune values that dynamically select a capacitance for the resonant tank, such that the voltage controlled oscillator operates within an optimal control voltage range. Each dynamically selected capacitance value is then used to determine the magnitude of current pulses in the charge pump.

Abstract translation: 描述了通过频率补偿电荷泵电流来提高频率合成器性能以便在宽的工作频率范围内保持一致的环路带宽的技术。 利用与压控振荡器谐振槽相关联的电容值与相关电荷泵中的电流脉冲的大小之间的关系，以便在工作频率和过程变化两者之间限制频率合成器的环路带宽。 控制状态机产生动态地选择谐振回路的电容的数字粗调值，使得压控振荡器在最佳控制电压范围内工作。 然后，每个动态选择的电容值用于确定电荷泵中电流脉冲的幅度。