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Hi, I programmed Spartan chip to produce serial data ( main_Clock, Data Clock, Data and Tag ) stream for a DAC. I need to make this system work with out wires. The main clock is 3MHz, Data clock is 1.5MHz. Can anybody advice me how to make it digital wireless ( Transmitter plus receiver). I have not done anything like this before. The DAC will be at 6 feet away from the Spartan chip. Thanks John
On May 12, 8:31 am, john <conphil...@hotmail.com> wrote: > Hi, > > I programmed Spartan chip to produce serial data ( main_Clock, Data > Clock, Data and Tag ) stream for a DAC. I need to make this system > work with out wires. The main clock is 3MHz, Data clock is 1.5MHz. Can > anybody advice me how to make it digital wireless ( Transmitter plus > receiver). I have not done anything like this before. The DAC will be > at 6 feet away from the Spartan chip. > > Thanks > John The best way is to modulate your signal at 5.8GHz and embed the phase correction data into the data stream. I assume the data flow is one- way only.
Hi, Yes, The data is flowing in one way. Would you please suggest some hardware. I am also thinking about bluetooth. Please advice! Regards, John
On May 12, 11:56 am, john <conphil...@hotmail.com> wrote: > Hi, > > Yes, The data is flowing in one way. Would you please suggest some > hardware. I am also thinking about bluetooth. Please advice! > > Regards, > John Bluetooth will not give you 1.5MHz data rate. In fact, 5.8GHz might not be enough, but the next ISM band is 25GHz.
On May 12, 12:17 pm, john <conphil...@hotmail.com> wrote: > Any suggestions regarding Hardware? > Regards, > John The Atmel ATR2820 RF Transceiver would be a good start, but I can't design your apps without knowing the full spec.
On Mon, 12 May 2008 08:31:59 -0700 (PDT), john <c...@hotmail.com> wrote: >Hi, > >I programmed Spartan chip to produce serial data ( main_Clock, Data >Clock, Data and Tag ) stream for a DAC. I need to make this system >work with out wires. The main clock is 3MHz, Data clock is 1.5MHz. Can >anybody advice me how to make it digital wireless ( Transmitter plus >receiver). I have not done anything like this before. The DAC will be >at 6 feet away from the Spartan chip. One-off project or a few dozen or a few hundred thousand? Per week? A hobby/learning/grow-your-brain project or for sale (and use) by a third party? Will UL/CSA/EC/FCC/etc. certification be required? Are the consequences of a communications failure: none, benign, pretty bad, or someone dies? Is this for a medical application (noting that your IP block is from Wayne State University Medical Center)? With that out of the way, if you can grind down the data rate a bit (no pun intended), you're close to being able to use an off-the-shelf solution like an XBee module, advertised to top out at 1 Mbps. <http://www.sparkfun.com/commerce/product_info.php?products_id=8695> -- Rich Webb Norfolk, VA
On May 12, 12:49 pm, Rich Webb <bbew...@mapson.nozirev.ten> wrote: > On Mon, 12 May 2008 08:31:59 -0700 (PDT), john > > <conphil...@hotmail.com> wrote: > >Hi, > > >I programmed Spartan chip to produce serial data ( main_Clock, Data > >Clock, Data and Tag ) stream for a DAC. I need to make this system > >work with out wires. The main clock is 3MHz, Data clock is 1.5MHz. Can > >anybody advice me how to make it digital wireless ( Transmitter plus > >receiver). I have not done anything like this before. The DAC will be > >at 6 feet away from the Spartan chip. > > One-off project or a few dozen or a few hundred thousand? Per week? > > A hobby/learning/grow-your-brain project or for sale (and use) by a > third party? > > Will UL/CSA/EC/FCC/etc. certification be required? > > Are the consequences of a communications failure: none, benign, pretty > bad, or someone dies? > > Is this for a medical application (noting that your IP block is from > Wayne State University Medical Center)? > > With that out of the way, if you can grind down the data rate a bit > (no pun intended), you're close to being able to use an off-the-shelf > solution like an XBee module, advertised to top out at 1 Mbps. Take a look at the RF data rate of 250Kbps. Does it mean the same for me as for you? > > <http://www.sparkfun.com/commerce/product_info.php?products_id=8695> > > -- > Rich Webb Norfolk, VA
Hi, What do you think about Texas Instrument's IEEE 802.16 (WiMax) chip set ( TRF1X/2X RF Chipset ). Please advice! Regards, John
On May 12, 12:58 pm, john <conphil...@hotmail.com> wrote: > Hi, > > What do you think about Texas Instrument's IEEE 802.16 (WiMax) chip No. > set ( TRF1X/2X RF Chipset ). Maybe. > Please advice! Forget about Bluetooth, WiFi, XYZBee, WiAnything. If you want slicings or channelings, you need 25GHz. To get 1.5MHz data rate, you need the full bandwidth for 5.8GHz.