Varactor (varicap) FV1043, equivalent in LTSPICE

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SUMMARY

The forum discussion centers on finding an equivalent varactor diode for the FV1043 in LTSPICE for use in oscillators. Users share resources, including Google search links for varactor models in SPICE, and recommend tuning the model independently. A specific mention is made of a user named Sir Balounce, who assisted in creating a 100 MHz oscillator using a tuning diode. The discussion highlights the importance of understanding the relationship between varactor voltage and frequency adjustment in oscillator circuits.

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michael1978
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Hello, everbody

can somebody help me to find equivalent varicap diode of FV1043, i can't find in ltspice FV1043
is for oscillator to change the frequency…..

thanks.
 
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I did a Google search for Varactor in SPICE, and got lots of hits. Are any of these of help?

https://www.google.com/search?q=varactor+in+spice&ie=utf-8&oe=utf-8&client=firefox-b-1

Beyond that, you may need to tune up the model on your own. The 2nd book below (snapshot from Amazon) is my favorite book for such modeling:

upload_2018-11-20_7-15-18.png
 

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i don't know to find similar:frown:
 
michael1978 said:
i don't know to find similar:frown:
Can somebody tell me, why he don't change the frequency, when i change the value of varactor diode battery, i don't know his name, he help to make the oscillator with varactor? do somebody know
 
AHhh Sir Balounce he make it for me oscillator 100MEGHZ, with tuning diode, but i try to change the voltage of varicap but frequency stay the same why? what for mistace i make:frown:
 
Hello i fix it, thnx………..
 

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