Hackaday9 年
Logic Noise: 4046 Voltage-Controlled Oscillator, Part One
When the one-fourth speed VCO signal is synced up to the input ... The voltage input for the VCO is on pin 9, and the output is on pin 4. And finally, the frequency range is controlled by ...
Design-Reuse2 年
Silicon-Accurate Fractional-N PLL Design
Figure 3 – VCO Phase Noise Simulation vs. Measurements – 0.9GHz and 1.5GHz Hz, 125°C These plots are “phase noise” plots and show the amount of noise in the PLL output phase relative to the output ...