Explain why the flicker noise of m1 is critical

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Reference no: EM131299066

Shown in Figure is the front end of a 1.8-GHz receiver. The LO frequency is chosen to be 900 MHz and the load inductors and capacitances resonate with a quality factor of Q at the IF. Assume M₁ is biased at a current of I₁, and the mixer and the LO are perfectly symmetric.

(a) Assuming M₂ and M₃ switch abruptly and completely, compute the LO-IF feed through, i.e., the measured level of the 900-MHz output component in the absence of an RF signal.

(b) Explain why the flicker noise of M1 is critical here.

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Reference no: EM131299066

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