发明名称 |
SUPPLY-REGULATED PHASE-LOCKED LOOP (PLL) AND METHOD OF USING |
摘要 |
<p>A supply-regulated Phase-locked loop (PLL) is provided. The PLL comprises a supply-regulating loop, a voltage-controlled oscillator (VCO), and a programmable decoupling capacitor array for the VCO. The capacitance of the VCO decoupling capacitor array is adjustable to be equal to N times CUNIT, where N is the current value of a multiplication factor of a divide-by-N circuit and CUNIT is a unit capacitance characterized for a processing technology chosen for fabricating the decoupling capacitor array. When the PLL switches from one frequency band to another, a higher-order pole introduced by the VCO decoupling capacitor tracks the PLL reference frequency, thus improving the PLL operational stability.</p> |
申请公布号 |
WO2010126845(A1) |
申请公布日期 |
2010.11.04 |
申请号 |
WO2010US32456 |
申请日期 |
2010.04.26 |
申请人 |
QUALCOMM INCORPORATED;RAGHUNATHAN, ASHWIN;PEDRALI-NOY, MARZIO |
发明人 |
RAGHUNATHAN, ASHWIN;PEDRALI-NOY, MARZIO |
分类号 |
H03L7/099;H03L7/22 |
主分类号 |
H03L7/099 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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