TI中文支持网LMX2572 datasheet 中注明有：FAST VCO calibration speed：＜20us
在使用PLLATINUM sim 进行仿真，LOCK TIME 栏中不使能 Partial Asiist VCO Calibration 时VCO calibration time =132.8us，使能 Partial Asiist VCO Calibration 时VCO calibration time =54us，
请问LMX2572确实能够实现datasheet 中FAST VCO calibration speed：＜20us么？如果能，仿真时应该如何设置？
Kailyn Chen：
datasheet中有给出描述FAST VCO calibration speed：＜20us的条件是：The ultra-fast VCO calibration is ideal for applications where the frequency must be swept or abruptly changed.
