I'm using the uBlox devices. They perform well and seem well designed.
Their data is also excellent.

Cheers,
Zik

On 1/19/07, Yigit Turgut <y.turgut@gmail.com> wrote:
> St Microelectronics has ST20-xx series gps processors which are widely
> used.Performance is better than SiRF prodcuts.Zarlink Semiconductors
> and Fujitsu has gps processors.Zarlink offers good price but never
> used them and heard of them.Centrality Communications has multi
> processor/w gps functions.Volswagen uses Centrality Communications
> processor on their navigation systems.
>
> Don't know the others but probably St has the fastest clock speed with
> up to 50mhz.Just keep in mind that DSP used to arrang data coming from
> the channels effects the system almost as much as the cpu used.
>
> Yigit
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