SESSION 19 Frequency Synthesizers and Series-Resonance VCOs.pdf

1、ISSCC 2025SESSION 19Frequency Synthesizers and Series-Resonance VCOsA PVT-Robust 5.5GHz Fractional-N Cascaded RO-Based Digital PLL with Voltage-Domain Feedforward Noise Cancellation 2025 IEEE International Solid-State Circuits Conference1 of 52A PVT-Robust 5.5GHz Fractional-N Cascaded RO-Based Digit

2、al PLL with Voltage-Domain Feedforward Noise CancellationYu Duan1,Yan Zhu1,Rui Paulo Martins1,2,Chi-Hang Chan11-University of Macau,Macau,China2-Instituto Superior Tecnico/University of Lisboa,Lisbon,PortugalA PVT-Robust 5.5GHz Fractional-N Cascaded RO-Based Digital PLL with Voltage-Domain Feedforwa

3、rd Noise Cancellation 2025 IEEE International Solid-State Circuits Conference2 of 52Outline Introduction Fractional-N Cascaded RO-DPLL with Voltage-Domain Feedforward Noise CancellationPVT-Robust Low-Jitter RO-DPLL ConceptOverall ArchitectureVoltage-Domain Feedforward Noise CancellationDelta-Sigma M

4、odulator Quantization Noise Cancellation Measurement Results and Performance Comparison ConclusionsA PVT-Robust 5.5GHz Fractional-N Cascaded RO-Based Digital PLL with Voltage-Domain Feedforward Noise Cancellation 2025 IEEE International Solid-State Circuits Conference3 of 52Outline Introduction Frac

5、tional-N Cascaded RO-DPLL with Voltage-Domain Feedforward Noise CancellationPVT-Robust Low-Jitter RO-DPLL ConceptOverall ArchitectureVoltage-Domain Feedforward Noise CancellationDelta-Sigma Modulator Quantization Noise Cancellation Measurement Results and Performance Comparison ConclusionsA PVT-Robu

6、st 5.5GHz Fractional-N Cascaded RO-Based Digital PLL with Voltage-Domain Feedforward Noise Cancellation 2025 IEEE International Solid-State Circuits Conference4 of 52 Good area-efficiency and scalability High phase noise(PN)and large jitterRing-Oscillator-Based Digital PLL(RO-DPLL)SOUT,PLLTDCDLFDIVS