FM Radio

Brad Arnold bradswitzer at gmail.com
Thu Aug 23 19:04:23 CEST 2007


Sorry, replyed to the wrong post...either way, interesting IC

On 8/23/07, Brad Arnold <bradswitzer at gmail.com> wrote:
>
> That information is not entirely correct.
>
> The NXP TEA5766 has FM, RDS, and I2C. It can be implemented in a 36 mm
> square area with only 11 external components (other than the IC). It
> Operates at 2.7V, 15mA, and consumes 40.5 mW. The size of the IC itself is
> 3.3x3.3mm.
>
> Sounds appealing, doesn't it?
>
> Brad
>
> On 8/23/07, Ian Stirling < OpenMoko at mauve.plus.com> wrote:
> >
> > Tilman Baumann wrote:
> > > Giles Jones wrote:
> > >
> > >> Ian Stirling <OpenMoko at mauve.plus.com> wrote :
> > >>
> > >>> It's valuable if it's very cheap or free.
> > >>
> > >>
> > >> But it's another chip on the already large board.
> > >
> > >
> > > Agree
> > >
> > >> DAB radios are more useful given the number of extra channels.
> > >
> > > Agree.
> > > Definitely more geekish. :)
> > >
> > >
> > >> There's no end of features you could implement, mobile TV would be
> > >> another feature now that the EU have standardised on a format.
> > >
> > > A DAB receiver could also supply you with DMB data. Which would be for
> >
> > > example video compressed for mobile use...
> > > DMB is DAB with oder codecs used in the data streams.
> >
> > A FM radio (using the above mentioned chip) can be implemented in under
> > 10mm*10mm board space, and under about 10mW power.
> > A DAB radio takes (ballpark) 50mm*50mm, and 500mW.
> > Not to mention that in the UK, the sound quality is often worse.
> > The regulator recently dropped the requirement for 128kbps, and lets the
> > broadcasters drop the bitrate as far as they like.
> > And this is Mp2, not even mp3.
> >
> > As to why not carry a seperate radio.
> > It's another thing to lose, charge, and get tangled in my pocket.
> > It doesn't vibrate to remind me when my favourite show is on.
> > It needs batteries charged.
> > It can't timeshift programs.
> > It can't broadcast sound over bluetooth.
> > Calls can't break into radio I'm listening to.
> > It can't compress quiet programs to a high average volume.
> >
> > _______________________________________________
> > OpenMoko community mailing list
> > community at lists.openmoko.org
> > http://lists.openmoko.org/mailman/listinfo/community
> >
>
>
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