Invention Grant
US08344309B2 Method and circuit for calibrating phase, and signal processing apparatus having the same 有权
用于校准相位的方法和电路,以及具有该相位的信号处理装置

Method and circuit for calibrating phase, and signal processing apparatus having the same
Abstract:
A method for calibrating a phase include comparing a phase of an in-phase output signal and a phase of a quadrature-phase output signal and generating a digital code corresponding to a comparison result, and controlling the phase of the in-phase output signal in response to quadrature-phase differential input signals and the digital code, and controlling the phase of the quadrature-phase output signal in response to in-phase differential input signals and the digital code, to make a phase difference between the in-phase output signal and the quadrature-phase output signal 90°.
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