Why my 30 MHz crystal oscillator failed to oscillate in Hspice simulation?

angelweishan · 发表于 2010-5-13 16:56:12

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Why my 30 MHz crystal oscillator failed to oscillate by using Hspice simulator?

Technology: SMIC 0.18um logic process

Help me, please. Thanks you so much.

artofsleep · 发表于 2010-5-15 22:56:19

try .option method=gear

moranzzzz · 发表于 2010-6-9 13:33:06

仿真步长弄短点。。。看看负阻够不够

sunsibing · 发表于 2011-2-23 16:21:19

看看瞧瞧！

xlteam17 · 发表于 2011-2-25 11:46:22

very good

judung · 发表于 2011-2-25 11:50:11

What are the options used in Hspice simulation?

qingxuan1 · 发表于 2011-10-18 11:24:33

请问crystal在spice中得等效参数怎么设计的

i0977454522 · 发表于 2014-7-31 16:53:31

adc Simulation

caxias · 发表于 2014-8-1 11:15:51

tighten the tolerances if you are using spectre use

ption point local. and make the min step in simulation 1/10 of the max frequency at the output. In case it still does not oscillate,check if you have sufficient gm ,by checking for the negative resistance of the amp and C1 and C2 capacitances put together.

xinshuiren · 发表于 2014-8-10 00:54:50

没做过

[求助] Why my 30 MHz crystal oscillator failed to oscillate in Hspice simulation?

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