VCO的共模差模死锁如何进行理论上的分析推导

icdane · 发表于 2023-7-19 11:34:43

M.S.Liao 发表于 2023-7-18 17:58
请问共模死锁的原因是什么？？？

no idea, since never heard of it.

M.S.Liao · 发表于 2023-7-19 15:35:40

icdane 发表于 2023-7-19 11:34
no idea, since never heard of it.

就是说，因为一个delay cell是有正反馈，有latch，然后存在一个状态，vco没有振起来。一直维持01010101。

kanchiam · 发表于 2023-7-19 15:52:57

這是因為differetial gain不夠大

icdane · 发表于 2023-7-23 12:53:11

M.S.Liao 发表于 2023-7-19 15:35
就是说，因为一个delay cell是有正反馈，有latch，然后存在一个状态，vco没有振起来。一直维持01010101。 ...

do not think this can be sustained. I would still think all the stages might act like an amplifier (linear circuit) so the output is low-high-low-high..., the low and high here are not logic level.
but could this happen?

M.S.Liao · 发表于 2023-7-24 16:55:01

icdane 发表于 2023-7-23 12:53
do not think this can be sustained. I would still think all the stages might act like an amplifier ...

额，可不可以说中文，看不懂。。。

喜欢清酒吗 · 发表于 2024-8-1 10:23:24

icdane 发表于 2023-7-23 12:53
do not think this can be sustained. I would still think all the stages might act like an amplifier ...

中式英语

喜欢清酒吗 · 发表于 2024-8-1 10:33:21

尘下之尘发表于 2014-9-9 17:20
共模死锁：
0 1 0 1
0 1 0 1

差模不会锁死，偶数阶的差分环振其中一级一般要反接，否则不起振

ziling2009 · 发表于 2024-8-2 13:36:09

enable的时候我一般给一个初始电压，强制他差模震荡

[求助] VCO的共模差模死锁如何进行理论上的分析推导

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