发明名称 |
System and Method for Adjusting a Characteristic of A Periodic Signal with Use of a Filtered Bias Voltage |
摘要 |
Circuits and methods for controlling a VCO output signal. A filtered version of an integral path input signal controls current flow through a proportional path. An exemplary embodiment generates an integral path input signal from a digital to analog converter. First integral path circuitry includes a first transistor device and a low pass filter which provides a filtered version of the integral path input signal to a first transistor device to control conduction through the device, providing a first VCO input signal for frequency adjustment of the output signal. Proportional path switching circuitry between a supply terminal and VCO input terminal includes a second transistor device which receives the first VCO input signals to control conduction between the supply terminal and the first VCO input terminal to provide a second signal for adjustment of the phase of the VCO output signal relative to the reference signal.
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申请公布号 |
US2013027100(A1) |
申请公布日期 |
2013.01.31 |
申请号 |
US201213544001 |
申请日期 |
2012.07.09 |
申请人 |
YAGHINI NAVID;WANG ROBERT;PIALIS ANTONIOS;MAHADEVAN RAJEEVAN;KARAKIEWICZ RAFAL;TANG RAYMOND KWOK KEI;SHEN SIDA |
发明人 |
YAGHINI NAVID;WANG ROBERT;PIALIS ANTONIOS;MAHADEVAN RAJEEVAN;KARAKIEWICZ RAFAL;TANG RAYMOND KWOK KEI;SHEN SIDA |
分类号 |
H03L7/08 |
主分类号 |
H03L7/08 |
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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