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Posts: 1
Registered: ‎04-14-2017

Si88x4x emissions - CISPA 11 characterization under full output load

Hi,  

 

Require isolators for medical device, compliant with IEC60601-1-2-26, the emi/rfi section of the 60601-1 general spec.

 

FDA require emissions below CISPA 11, class 1, Level 2 for IEC60601-1 class 1 configured device, i.e. metal/conductive enclosure attached to safety earth ground.

 

What is the radiated emissions for the Si8824x, Vin = 5V?

 

Data as in Fig 3 of "Low emi isolation for medical equipment applications"  for the 8824x to compare to the limits set by CISPR11.

 

Is there a document specifically making recommendations for the 8824X minimizing emissions extending beyond AN583: Safety Considerations and Layout Recommendations for Digital Isolators?

 

TI offer http://www.edn.com/design/power-management/4458172/How-to-achieve-low-radiated-emissions-with-fully-...

 

ADI offer http://www.analog.com/media/en/technical-documentation/application-notes/AN-1109.pdf?doc=ADuM240D_24...

 

and in save philosophy as TI

 

http://www.analog.com/media/en/technical-documentation/application-notes/AN-0971.pdf

 

Lastly, are there other components at Vin and Vout fig1 of AN892 recommended to minimize radiation?

 

Thanks

 

John Kimura

 

 

Posts: 13
Registered: ‎02-25-2014

Re: Si88x4x emissions - CISPA 11 characterization under full output load

I will reply on your SalesForce ticket rather than here.