Cellular GSM Technology - DSPs in Mobile phones?

Author

DSPs in Mobile phones?

asude012@yahoo.com

2006-08-29, 4:33 am

Just curious about what Digital Signal Processors following brand of
Mobile phones use:-

1.) Nokia - Which family of DSP and other processor (if any) it uses ?
2.) Samsung - ?
3.) Motorola - ?
4.) Sony Erricson - ?
5.) LG - ?
6.) Siemens - ?

AD.

Randy Yates

2006-08-29, 10:33 pm

"asude012@yahoo.com" <asude012@yahoo.com> writes:
> [...]
> 4.) Sony Erricson - ?

Sony/Ericsson's old GSM phones used a custom chip containing a TI 54x
DSP and an AVR 8-bit host processor. The newer Sony Ericsson phones
are based on Ericsson chipsets, which use OMAP: ARM 9 and 55x
combo. There are a few new high-end phones that also contain a custom
audio/video processor that is based on the CEVA-Teak DSP core.
--
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Iwo Mergler

2006-08-30, 7:33 am

asude012@yahoo.com wrote:

> Just curious about what Digital Signal Processors following brand of
> Mobile phones use:-
>
> 1.) Nokia - Which family of DSP and other processor (if any) it uses ?
> 2.) Samsung - ?
> 3.) Motorola - ?
> 4.) Sony Erricson - ?
> 5.) LG - ?
> 6.) Siemens - ?
>
> AD.

There are chip manufacturers and there are
phone manufacturers. A phone manufacturer
will use whatever is cheap and does the job.

The one chip manufacturer I know "from the inside",
has and is using several different DSPs, depending
on customer preferences, performance requirements,
license costs, etc.

There is some pressure from the phone manufacturers
to stick to a specific DSP, to speed up time-to-market.
But there is no generic DSP brand loyalty for a
specific manufacturer.

Kind regards,

Iwo

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