ISO7842 EMC robustness

Keiichi Kajino

Other Parts Discussed in Thread: ISO7842

Hi, folks

Our customer reported that the EMC robustness of ISO7842 is worse than some other solutions.

Added 0.1uF and 1uF of each Vcc-GND,EN is directory connected to Vccx, but added 0,1uF capacitor between EN(eq to Vcc) to GND.

Could you tell me how to improve robustness against EMC.

Application is power meter, so severe to EMC robustness.

over 10 years ago

0 Keiichi Kajino over 10 years ago

Expert 2365 points

Could you please reply on this?

0 SaranganValavan over 10 years ago in reply to Keiichi Kajino

TI__Intellectual 1815 points

Keiichi,
Can you please send some more information on what EMC test was worse. Was it Radiated Emissions on Radiated Susceptibility. Can you also please send me a mail at sarangan@ti.com so that we can have a more deatiled discussion.
Regards,
Sarangan Valavan

0 Keiichi Kajino over 10 years ago in reply to SaranganValavan

Expert 2365 points

Hi Sarangan,

Thank you for your reply. I send you mail directory.

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ISO7842 EMC robustness