SDAA225 January   2026 LMX2594

1.   1
2.   Abstract
3.   Trademarks
4. 1Introduction
5. 2VCO Basic Theory and Key Factors
   1. 2.1 VCO
   2. 2.2 VCO Frequency Range
   3. 2.3 Phase Noise
6. 3CMOS LC VCO Design
   1. 3.1 PLL Structure
   2. 3.2 LC VCO Structure and Operation
   3. 3.3 Each Circuit and Block Operation
      1. 3.3.1 Tuning Varactor Bias Circuit
      2. 3.3.2 7 Bit MIM Capacitor Bank
   4. 3.4 Simulation
   5. 3.5 Implementation and Measurement Results
      1. 3.5.1 Layout
      2. 3.5.2 Fabrication and Measurement Results
7. 4Summary
8. 5References