Oscillator_Design

Oscillator_Design - MMIC Design and Technology Oscillator...

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Lecture 6 Oscillator Design MMIC Design and Technology Oscillator Design

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Lecture 6 Oscillator Design Update Oscillator design Text pages 251 – 279 HW4 due on Monday 3-6-06 Mixers are next Text pages 281 -346 Midterm exam Wednesday 3-8-06
Lecture 6 Oscillator Design Transceiver Example We now know amplifier design And techniques for low noise amplifier design

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Lecture 6 Oscillator Design Oscillator ( 29 in L in L Z Z I Z Z - = = + 0 Z in Z L I Γ in L One port negative resistance oscillator circuit Kirchoff For I >0 1 1 1 0 0 0 0 0 0 Γ = Γ Γ Γ = - + = + - - - = + - = Γ in in L in in in in in L L L Z Z Z Z Z Z Z Z Z Z Z Z
Lecture 6 Oscillator Design Oscillation in in in L L L jX R Z jX R Z + = + = in L Z Z - = 0 0 = + = + in L in L X X R R 0 0 0 ) , ( ) ( ϖ j I X j X in L - = Is the oscillation frequency

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Oscillator Stability For stability the circuit should resist small changes in I or ϖ and return to its original state. Detailed perturbation analysis results in :
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This note was uploaded on 04/09/2010 for the course EE 599 taught by Professor Povinelli during the Spring '08 term at USC.

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Oscillator_Design - MMIC Design and Technology Oscillator...

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