下图两组1.2.3可以对应起来；

一些分析：

1.根据这个可知最后vco_voltage停在0.5v

参考资料：

1. Matlab

https://www.bilibili.com/video/BV1bR4y1Z7Xg/?spm_id_from=333.1296.top_right_bar_window_history.content.click&vd_source=5556680656536651c49f5e55d7d4df23

2. Datasheet

SKY73134.pdf

3.

https://www.bilibili.com/video/BV1oW411q7bv/?spm_id_from=333.337.search-card.all.click&vd_source=5556680656536651c49f5e55d7d4df233.