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Old 11-13-2009, 07:01 AM
Tim Wescott
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Default Re: Help with a DSP project

On Thu, 12 Nov 2009 15:49:50 -0600, Kevin100 wrote:


>>
>>Kevin100 wrote:
>>> My group is working on a project where we need to improve the SNR of a
>>> 64QAM RF channel.

>>
>>How can you imrove the SNR of a channel?
>>
>>> It is 6.4 MHz wide and the center frequency can be as
>>> high as 82 MHz. How do we go about selecting a DSP for this project?

> Or
>>> what would be a good DSP to use?

>>
>>This is likely to be out of league of programmable DSPs. Consider FPGA.
>>
>>> We want to avoid doing an hardware
>>> development, so ideally we would like to use a DSP development kit.

> Any
>>> suggestions?

>>
>>Find a different project.
>>
>>
>>Vladimir Vassilevsky
>>DSP and Mixed Signal Design Consultant http://www.abvolt.com
>>
>>

>
> The sampling rate needs to be >170 Msps and we need 12 bit resolution,
> and <50 microsecond latency. If I understand you right, there are no
> DSP development kits that can operate at these speeds? I mean a kit
> with a ADC, FPGA, and DAC all on one board.
>

See what the FPGA vendors have. Most folks hear "DSP" and assume you
mean a DSP chip, not an FPGA.

Terms are misleading...

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