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DKim.39
Visitor II
May 16, 2024 1:59 AM UTC
Solved

[STSPIN32G4] Radiated Emission Issue

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)

GMA
GMABest answer
ST Technical Moderator
Nov 13, 2024 8:17 AM UTC

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 'Best answer'.Best regards.GMA

3 replies

GMA
GMABest answer
ST Technical Moderator
Nov 13, 2024 8:17 AM UTC

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 'Best answer'.Best regards.GMA
Associate
Apr 22, 2026 6:48 AM UTC

Hello GMA,

I have the same problem using STSPIN32G4 and I cannot view the answer.

Could you show the support team answer, please?

Thank you very much

Federico

Associate
Nov 27, 2024 9:25 AM UTC

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