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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)

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