What is the definition for IIP3/OIP3 in low IF mixer

[yolande_yj]

iip3 definition

For low IF mixer, the output port is generally not power matched. How to define the IIP3 or OIP3. BTW, 1dB desen is refering to the voltage gain drop, right?

 

[actra]

mixer iip3

**broken link removed**

this page have agood info about mixer terms..
hope it helps..

 

[yolande_yj]

iip3 oip3

h**p://www.minicircuits.com/appnote/mixer1-4.htm

this page have agood info about mixer terms..
hope it helps..

Thank you for your reply. But I am not asking the basic concept about IIP3, which is available in every text book. What I am asking is the Low IF mixer IIP3.

 

[_RFIC_]

oip3 definition

yes, I am also very confused about this definition

 

[dsjomo]

oip3 mixer

plot dbv vs. input power dbm, then do the same extrapolation.

 

[eejli]

oip3 iip3

why dbv vs dbm the units are different