Can the microSD card be used in a high noise environment??

arunb · Joined: 08 Sep 2003 Posts: 492 Location: India

Hi,

I am trying to use a microSD card for an industrial control application. Since I have only the simplified specs for the device, I am unable to get answers for some questions.

1. Can the microSD card be used in an high 'electrical noise' environment ??
2. Also what is the max. operating temperature for this device ??

thanks
arunb

asmallri · Joined: 12 Aug 2004 Posts: 1635 Location: Perth, Australia

arunb · Joined: 08 Sep 2003 Posts: 492 Location: India

Hi,

Thank you for the reply..Ha Ha I understand what you mean. The card I have is meant for a mobile phone, I am thinking this may not be suitable for an industrial application.

Anyway I will check out the company website...

thanks
arunb

kender · Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley

It could work. May be it will need additional filtering, galvanic isolation, EMI shielding.

I wonder, does anyone know how the EMI susceptibility of an typical SD card (say, SanDisk) compares to that of a PIC running on a +3.3V supply?
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SherpaDoug · Joined: 07 Sep 2003 Posts: 1640 Location: Cape Cod Mass USA

A mobile phone left in a hot car on a sunny day can expect to see some pretty high temperatures. Likewise with cold. I would not be surprised if the temperature specs are OK. The electrical compliance depends on your regulation and filtering.
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