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hi help me please


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omidgold



Joined: 05 Jun 2006
Posts: 86
Helped: 3


Post30 Jan 2008 18:06   

hi help me please


I have a projecy on rfid . i am using u2270 from atmel . i have a manchester code in output of this chip with 512 us width of pulse . i want read a card but i cannot read real number of this card . please help me.
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Post30 Jan 2008 18:06   

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aminr11



Joined: 11 Apr 2007
Posts: 2


Post19 Apr 2008 9:24   

Re: hi help me please


HI,can u help me? i use u2270 and use Schematic application note 1.I can see oscillation at Coil1 & Coil2 But there is no activity on output pin.about inductor in datasheet it say 1.5MH which is hard to achieve ,what do u use as inductor?
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