[opendtv] Re: (No Date: Tue, 28 Sep 2004 10:30:37 -0400

  • From: "Keith Jack" <kjack2@xxxxxxxxxxxxxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Fri, 15 Oct 2004 14:57:24 -0700

Up to a point, then I/O drive requirements may become a significant
percentage of the power.

Also, when going to a smaller process, you also tend to put more features
on-chip, which may keep power in the same region as the previous design.


-- Keith 
 
> 
> Smaller capacitances to charge allows lower current levels 
> for given speed, which reduces power consumption.
>
> 
> Al Limberg
> ----- Original Message ----- 
> From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
> To: "OpenDTV (E-mail)" <opendtv@xxxxxxxxxxxxx>
> Sent: Friday, October 15, 2004 5:38 PM
> Subject: [opendtv] Re: (No Date: Tue, 28 Sep 2004 10:30:37 -0400
> 
> 
> > Frank Eory wrote:
> >
> > > Bert is fond of invoking Moore's Law to argue that
> > > in time, the cost differences due to silicon area
> > > between COFDM and 8-VSB will be in the noise.
> >
> > Correct. I'll stick with my original $35 prediction
> > for built-in ATSC receivers by 2007. I was going to
> > hedge, and say that an extension of NTSC shutdown to
> > 2009 might delay that. But perhaps such CYA behavior
> > is uncalled for, because the tuner mandate does not
> > change its schedule even if the shutoff date is
> > extended (that I know of).
> >
> > > But Moore's Law doesn't apply to power dissipation.
> > > In fact, the power problem keeps getting worse as
> > > CMOS geometries continue to shrink. The desktop PC
> > > solution to this problem -- a massive heatsink & fan
> > > -- will never fly in the CE world.
> >
> > And yet, Pentium 4s are also available in battery
> > powered lap tops.
> >
> > Correct me if I'm wrong, but with shrinking CMOS
> > comes a mandatory reduction in voltage, to prevent
> > arching. Doesn't this result in power reduction
> > as well? The 18 um of today's ATSC receivers
> > might have seemed bleeding edge in 2000, but it's
> > very mature technology today, right? Not positive
> > about the LG receiver, but the Linx did use 18 um,
> > no different from the 2nd gen receivers.
> >
> > Bert
> >
> >
> > 
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