发明名称 |
Voltage-controlled oscillator gain calibration for two-point modulation in a phase-locked loop |
摘要 |
A phase-locked loop (PLL) is arranged to receive high-pass data at a first input and low-pass data at a second input. A first digital input is coupled to a primary path through a digital-to-analog converter (DAC) and a second digital input is coupled to a feedback path of the PLL. The controller provides the first input and the second input during a calibration procedure. The controller adjusts first and second control inputs in an attempt to keep the input voltage to a voltage-controlled oscillator (VCO) in the PLL constant while determining the gain of the VCO in Hz/LSB.
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申请公布号 |
US7612617(B2) |
申请公布日期 |
2009.11.03 |
申请号 |
US20080040875 |
申请日期 |
2008.03.01 |
申请人 |
SKYWORKS SOLUTIONS, INC. |
发明人 |
PULLELA RAJASEKHAR;DAMGAARD MORTEN;TADJPOUR SHAHRZAD;VASA JOHN E.;LEE HOON |
分类号 |
H03L7/099;H03L7/18 |
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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