lecture 23: oscillatorsbwrcs.eecs.berkeley.edu/.../lectures/lect23_2up.pdf · 2010. 11. 18. ·...

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Amin ArbabianJan M. Rabaey

Lecture 23: Oscillators

EE142 – Fall 2010

Nov. 18th, 2010

University of California, Berkeley

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MOS Voltage Switching Mixer

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MOS Switching (Passive) Mixer Summary

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MOS Ring Mixer

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Passive Mixer LO Power

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LO Power (Inverter Chain)

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Tuned LO Power

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H-Bridge Mixer

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Time-Varying Conductance

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Time-Varying Gain m(t)

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Ring or Quad?

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APPENDIX I:PERIODIC STEADY STATE SIMULATIONSAlso refer to Discussion notes of 11/08/2010

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Periodic Steady State (PSS) Simulations

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PSS Iteration

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PSS Options

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Periodic AC (PAC) Simulations

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PAC

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PNoise

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OSCILLATORS

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Oscillators

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Phase Noise

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LC Tank

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Feedback Perspective

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Negative Resistance Perspective

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Feedback Approach

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Feedback Example

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Poles of the Closed Loop System

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Root Locus

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Natural Response

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Real LHP Poles

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Complex-Conjugate LHP Poles

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Complex Conjugate RHP Poles

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Frequency Domain

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Oscillation Buildup

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LC Oscillator

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AC Equivalent Circuit

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Small Signal Equivalent Circuit

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Open Loop Transfer Function

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Closed Loop Transfer Function

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Closed Loop Gain vs Al

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Magnitude of the Poles

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Root Locus