2GHz PLL Frequency Synthesize

This paper mainly introduces the design, debugging and testing for 2GHz PLL frequency synthesizer, which applied to radar microwave module. The frequency synthesizer adopts the principle of phase-locked, the core component is LMX2430 which is integrated Low-power frequency synthesizer with a high-speed dual-mode front divider. The system equipped with a low noise operational amplifier LM6211 and a high-performance voltage-control oscillator SM2100. The frequency of the 16MHz crystal is selected as the reference frequency of the phase-locked loop. Finally, the frequency synthesizer is tested experimentally and the result achieved the design goal.