> Some micro's have terible radiation characteristics and are > unsuitable to in radio modems with sensitive analogue frontends. > > ARM controllers are used in mobile phones etc. > > What characteristics do the LPC2000 have that lend thenselves > radio modems / phones etc. this is very interesting topic, I can't find any info on this in LPC datasheets, but we found interesting feature: when LPC PLL is enabled if you have near by (1-2 meters) FM radio you can hear the sweep tone for about second. Our QC found this as they have radio on their desk where LPC boards are tested, no one of other microcontrollers we used make such interference to the radio. Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) Development boards for ARM, AVR, PIC, and MSP430 (http://www.olimex.com/dev)
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Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by tsvetanusunov
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