Accurate PLL Characterization Using Virtuoso Spectre RF Noise ...
Accurate PLL Characterization Using Virtuoso Spectre RF Noise ... Accurate PLL Characterization Using Virtuoso Spectre RF Noise ...
26 Using Spectre RF Noise-Aware PLL Methodology to Predict PLL Behavior Accurately Introduction Spectre RF Noise-Aware PLL Flow and Non-Linear VCO Modeling Advantages of this flow versus other commercial approaches Experimental results Conclusion September 17, 2007
27 Conclusions • • • • Cadence SpectreRF Noise-aware PLL flow predicts the phase noise of a PLL-based frequency synthesizer using a simulation method that is both accurate and efficient. For each block, the phase noise is extracted and applied to a phase-domain model for the entire PLL.VCO phase noise is accurately characterized using advanced perturbation technology (PPV). Strengths of this flow (automatic calibration, greatly improved simulation time without loss of accuracy, direct plotting capability of PLL metrics) were presented. Compared to traditional approaches, experimental data confirmed a significant speed-up with comparable accuracy. September 17, 2007
- Page 1 and 2: INVENTIVE Using Spectre RF Noise-Aw
- Page 3 and 4: 3 • • • Introduction Phase lo
- Page 5 and 6: 5 Challenges of PLL Simulation •
- Page 7 and 8: 7 V R Spectre RF Noise-Aware PLL Si
- Page 9 and 10: 9 PLL Model Extraction Flow • •
- Page 11 and 12: 11 September 17, 2007 PLL testbench
- Page 13 and 14: 13 Non-Linear VCO Modeling • •
- Page 15 and 16: 15 Effect of Noise and Perturbation
- Page 17 and 18: 17 SpectreRF’s PPV-based VCO Mode
- Page 19 and 20: 19 • • • Strengths of Spectre
- Page 21 and 22: 21 Using Spectre RF Noise-Aware PLL
- Page 23 and 24: 23 September 17, 2007 PPV versus tr
- Page 25: 25 PLL Noise-Aware Flow Experimenta
- Page 29 and 30: 29 References • • • • • [
26<br />
<strong>Using</strong> <strong>Spectre</strong> <strong>RF</strong> <strong>Noise</strong>-Aware <strong>PLL</strong> Methodology to<br />
Predict <strong>PLL</strong> Behavior <strong>Accurate</strong>ly<br />
Introduction<br />
<strong>Spectre</strong> <strong>RF</strong> <strong>Noise</strong>-Aware <strong>PLL</strong> Flow<br />
and Non-Linear VCO Modeling<br />
Advantages of this flow versus other<br />
commercial approaches<br />
Experimental results<br />
Conclusion<br />
September 17, 2007
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