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FT232BM - "Ferrite Bead"

 
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Christoph Klein

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Joined: 01 May 2004
Posts: 15
Location: Germany

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PostPosted: Wed Feb 07, 2007 11:22 am    Post subject: FT232BM - "Ferrite Bead" Reply with quote

Hello,

I'd like to create a minimal board for the FT232BM USB chip. The manual emphazises the necessity to use a "ferrite bead" to reduce noise.

They suggest to take an MI0805K400R-10 (40Ohms @ 100mhz, SMD)

Living in Germany I wouldn't like to buy one ferrite bead in the USA
( Digi-key: 0.58 for 10 and 31 for shipping & handling :) )
and Farnell would let me order in lots of 1000 or so :)

Do You have a tip which part to use and where to buy?
I'm talking about 10 or so specimens ...


Greetings,

Christoph
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tomi

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Joined: 22 Feb 2005
Posts: 155
Location: Universe

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PostPosted: Thu Feb 08, 2007 9:24 pm    Post subject: Reply with quote

I have a lot of skills with FTDI chips and I not use FB at all and I not see any problems or unstability and that chips are used in car diagnostic environment (OBD). You can forget FB.
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Best regards,
/Tomi
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Gussy

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Joined: 08 Sep 2006
Posts: 37

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PostPosted: Sat Feb 10, 2007 2:38 am    Post subject: Reply with quote

I know of a few people who don't worry with the bead.
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