# LMS7002M RF Matching

**URL:** <https://discourse.myriadrf.org/t/lms7002m-rf-matching/4259>\
**Category:** System Development\
**Created:** [27 February 2019 12:58 UTC](https://discourse.myriadrf.org/t/lms7002m-rf-matching/4259 "2019-02-27T12:58:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![KMichaelides](https://avatars.discourse-cdn.com/v4/letter/k/f05b48/32.png) [@KMichaelides](https://discourse.myriadrf.org/u/KMichaelides)\
**Post date:** [27 February 2019 12:58 UTC](https://discourse.myriadrf.org/t/lms7002m-rf-matching/4259/1 "2019-02-27T12:58:55Z")

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Does anybody know the RF input impedance of RXINL and RXINH for the LMS7002M, as we are trying to optimise our matching circuit for broadband performance?  
The differential output impedance is given as 40 ohms in the datasheet but the input impedance is not mentioned.

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**Author:** ![andrewback](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@andrewback](https://discourse.myriadrf.org/u/andrewback)\
**Post date:** [27 February 2019 16:38 UTC](https://discourse.myriadrf.org/t/lms7002m-rf-matching/4259/2 "2019-02-27T16:38:58Z")

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Tagging @Zack.

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**Author:** ![Zack](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/zack/32/89_2.png) [@Zack](https://discourse.myriadrf.org/u/Zack)\
**Post date:** [27 February 2019 17:34 UTC](https://discourse.myriadrf.org/t/lms7002m-rf-matching/4259/3 "2019-02-27T17:34:32Z")

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Hi @KMichaelides,

Check this link: [https://limemicro.com/technology/lms7002m/](https://limemicro.com/technology/lms7002m/)  
Here you will find “LMS7002M S-Parameters” document.

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**Author:** ![vojtech.jenik](https://avatars.discourse-cdn.com/v4/letter/v/59ef9b/32.png) [@vojtech.jenik](https://discourse.myriadrf.org/u/vojtech.jenik)\
**Post date:** [27 May 2020 15:23 UTC](https://discourse.myriadrf.org/t/lms7002m-rf-matching/4259/4 "2020-05-27T15:23:08Z")

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Is there any description of the impact of Cap\_Var value mentioned in “LMS7002M S-Parameters” document on LNA NF, gain, power compression, IP2, IP3?