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Max3232 capacitor values
 
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koutote
PostPosted: Feb 15, 2012 - 09:02 AM
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Joined: Jun 09, 2006
Posts: 102
Location: Thessaloniki
Hi everybody,

I want to translate RS232 to 3.3V signals(got
the MAX3232 chip)

However for proper operation datasheet states that
0.1μF=100nF capacitors needed, polarized or non polarized.
Can I use non-polarized caps or you think will be a problem....(according to schematic of MAX3232 polarised are used)...

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MBedder
PostPosted: Feb 15, 2012 - 09:13 AM
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Joined: Nov 02, 2009
Posts: 3239
Location: Zelenograd, Russia
Use ceramic capacitors - they are non-polarized by nature, small, cheap and reliable.

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haker_fox
PostPosted: Feb 15, 2012 - 09:18 AM
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Joined: Oct 15, 2005
Posts: 530
Location: Russia, Far East Siberia, Irkutsk
Hello there!
The datasheet says
koutote wrote:
However for proper operation datasheet states that
0.1μF=100nF capacitors needed, polarized or non polarized.
C

What's wrong? Smile
 
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koutote
PostPosted: Feb 15, 2012 - 09:24 AM
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Joined: Jun 09, 2006
Posts: 102
Location: Thessaloniki
Haker_fox the schematic (inside datasheet) shows +(plus) and -(minus) connections for capacitors, thats why I was confused (....not Iam a newbie still...Smile).

Thanks guys, I will go for ceramic.

Rgds

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DO1THL
PostPosted: Feb 15, 2012 - 09:58 AM
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Joined: Aug 29, 2002
Posts: 790
Location: Muenster, Germany
The schematic you're referring to just wants to make sure that, if you are using polarized caps, you connect them as shown. Of course, if you don't use polarized caps, the way you connect them is about as important as the pope's balls...

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