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TYPE II PHASE LOCKED LOOP USING DUAL PATH AND DUAL VARACTORS TO REDUCE LOOP FILTER COMPONENTS
TYPE II PHASE LOCKED LOOP USING DUAL PATH AND DUAL VARACTORS TO REDUCE LOOP FILTER COMPONENTS
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机译:II型锁相环,使用双路径和双变量来减少环滤器组件
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摘要
A phase locked loop (PLL) with reduced loop filter components having dual charge pumps and corresponding dual signal paths that reduce on-chip component size within the filters. The dual paths are combined advantageously via dual varactors within a voltage controlled oscillator to further reduce loop filter components. The PLL removes the drawbacks of noise introduced by circuitry normally used for summing dual path configurations.
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