Eric, EMC article pretty good..
(in finnish it means "really great")
But why is it still so difficult to understand that
the mouth doesn't produce heat and radiation
while the ears listen for small, feeble signals??
(the other article on GPRS)
"With a current practical limit of 4-timeslots due to radiation and heating issues.."
this was fun:
"The resulting increase in power amplifier current, together
with increased CMOS dissipation due to the higher computation load.."
Great to assume that the reader knows that the RF parts
are bipolar, SiGe,etc and the other stuff is CMOS.
Obviously this was a problem especially long time ago
when the DSP (CMOS) used half of the battery power, the
transmit (mouth) PA (power amplifier) the other half.
That is, when Intel run a 386 at max 33MHz, but now it is
kind of a different cost calculation.
But "Richard Lodge, from Tropian" must have gotten some
key words through, but probably didn't get a chance
to really review the final draft??
Ilmarinen
ANyway, I'm happy that even QCDMA finally picked up on
some of the power saving features of GSM, but those
guardbands are tough. |
