rickman wrote:> linnix wrote: > > rickman wrote: > > > linnix wrote: > > > > rickman wrote: > > > > > sg wrote: > > > > > > thnx. ill look into it. > > > > > > no its not military intended, but worldwide marketplace intended. > > > > > > > > > > There are a lot of modules out there that are much smaller than your > > > > > form factor. They implement the full GPS function and communicate over > > > > > a serial port. Some also provide software support so you can add your > > > > > own code to the ARM CPU which is on most of them. > > > > > > > > They are also very expensive, of the order of $200 each. > > > > The RF chip is about $20 + another $20 for a DSP. > > > > Of course, you have to do some programmings. > > > > > > I am getting pricing between $100 for qty 1 to <$25 for qty 10k. > > > Basically the module is a vehicle for selling the chips. In fact, the > > > module approach saves you having to develop all the firmware since it > > > is included in the on-module ARM. > > > > > > They are selling these modules for the cell phone market, so I can't > > > imagine that it has much overhead cost or the cell phone makers would > > > just use the chips. > > > > I guess you work for a big company. We would not be buying 10k. > > One quote I got was: > > > > Sample pricing is US$210.00 per unit > > 100 units for production = US$180.00 per unit > > 500 units for production = US$165.00 per unit > > > > The RF chip could be less than $10 if you are buying 10K. > > Yes, but the RF chip still requries the baseband chip and the ARM > processor. To the best of my knowledge everyone still has a three chip > solution. I guess there may be some who have combined the baseband > processing with an ARM chip as a custom SOC solution, but I have not > seen that yet.Yes, that's a module with an embedded ARM. However, since getting the quote sometimes ago, we have designed not to go with the single chip solution. Since we need an FPGA on the board anyway, it could be decoding the 4MHz baseband as well. The GPS is not needed all the time, so only the incremental costs are importannt. The FPGA is not part of the cost issue.> > Who did you get your quotes from? Check with uBlox or Fastrax. They > seem to have the best modules at this point, at least in terms of size, > power and cost. Pricing at 100 is $46 and at 500 is $34. uBlox has > new modules that are indoor capable with 157dBm sensitivity rating. > The price is only a bit more.OK, I will check it out. Thanks.> > If you need contacts, I can send you mine.
engineering services needed - arm/pcb design
Started by ●January 29, 2006
Reply by ●January 31, 20062006-01-31