EE 597G/CSE 578A Final Project Phase Locked Loop Han-Wei Chen & Ming-Wei Liu
Outline Specification VCO PFD Charge Pump Divider Layout Post-Sim
PLL Spec Input Signal Square Wave 12.5 MHz Output Signal Sine Wave 0.3 V to 3.2 V Vdd Gnd 3.3V Locked Speed 6u sec
Voltage Control Oscillator
VCO -- Ring Oscillator
VCO – Delay Cell
VCO
VCO Layout
VCO Post-Sim
Phase Frequency Detector
PFD
PFD
Charge Pump
Charging
Discharging
Divider
Divider
Simulation Results – Schematic Level
Overall Layout
Layout
Post-Sim
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