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AD6650,pdf datasheet (Band Rec

消耗积分:5 | 格式:rar | 大小:510 | 2009-09-10

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The AD6650 incorporates a quadrature demodulator that mixes the IF frequency to a baseband frequency. The phase and amplitude imbalance of this quadrature demodulator is observed in a complex FFT as an image of the fundamental frequency. The term image arises from the mirror-like symmetry of signal and image frequencies about the beating-oscillator frequency (in this case, this is dc).
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