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[STSPIN32G4] Radiated Emission Issue

DKim.39
Associate

Hello I want support for STSPIN32G4 EMI Issue

I took tests for Farfield EMI Report at STSPIN32G4 Standby condition
Report shows QP are over than Limit at 190.547MHz, 253.803MHz

DKim39_1-1715824394066.png

and I also get similar result by using Near-field prove(Proved Noise Peaks : 185.91, 123.94, 247.88, 309.84MHz) this result are same at evspin32g4-dual(also Flash Erase conditions results)

DKim39_2-1715824446125.png

I guess 62 MHz harmonic noise occurs between STM32G431 and STSPIN32G4 Internal Control logic Because I observe noise when Voltage input to VM and REGIN for the (in 3.3V externally supplied circuit)

DKim39_3-1715824593906.png

I want to know how could i solve this problem(Resolving EMI noise)

1 ACCEPTED SOLUTION

Accepted Solutions
GMA
ST Employee

Hello @DKim.39,

This post has been answered through our local support team.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA

View solution in original post

2 REPLIES 2
GMA
ST Employee

Hello @DKim.39,

This post has been answered through our local support team.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA
jopa
Associate

Hello , we found the same problem with EMC. May I know if  you have any solution of this radiation problem?  Thanks  Josef Pazderka