Lpc2000

----- Original Message ----- 
From: "Rob Jansen" <rob@...>
To: <lpc2000@yahoogroups.com>
Sent: Saturday, January 28, 2006 6:11 AM
Subject: [lpc2000] EMI - was Re: lpc2138 5V tolerant is not really tolerant!


> I'm not an EMI expert,
>> I do have a 51
>> ohm series resistor on all I/O lines including the RXD and TXD of
>> USART0 to make sure that no EMI problems occur.
>>
>> regards,
>> Charles
>>
>
> I did do some ESD research/design once for a web tablet. Although the IC
> used (forget which one) was said to be ESD safe, firing at the touch
> screen with a Human Body Model ESD tester resulted in error. I then
> added R/C combinations to resolve this problem.
>
> But I'm definitely not an EMI expert and would even think that adding
> resistors may make the problem worse ...
> Are there any special considerations to take into account with (apart
> from PCB design and use of separate ground/power planes) ?

Devices like AVX TransGuards can be very useful.

Leon 

---
[This E-mail has been scanned for viruses but it is your responsibility 
to maintain up to date anti virus software on the device that you are
currently using to read this email. ]