if vinand, if you want to digitize 48 signals with 250 KHz bandwidth, you might want to consider purchasing a 48 input PCIe ADC board and doing the signal processing in a computer (in software). (not use FPGA boards). but then you'd have to mix the deuterium line to baseband, so you'd need 48 downconverters.
if you want to use snaps, and you don't have much processing to do on the fpga, and you want to save money, you could plug in a ADC16 board into the snap - this is a bit of a cludge, but would give you 28 channels per snap (16 external ADC channels, and 12 on board ADC channels). if you have a roach1 or roach2 lying around, there's a 64 channel adc board you could use that sample at up to 50 Msps; i'm not sure about the analog bandwidth - you might not have to use downconverters... best wishes, dan On Fri, May 25, 2018 at 6:24 AM, Vinand Prayag <[email protected]> wrote: > Hi, > > Please find attached the User Requirement. The bandwidth is actually only > 250KHz > > Cheers, > Vinand > > On Fri, May 25, 2018 at 5:20 PM Marcus D. Leech <[email protected]> wrote: > >> On 05/25/2018 07:28 AM, Vinand Prayag wrote: >> >> Hi all, >> >> We are looking at building a telescope in Mauritius which is called the >> Mauritius Deuterium Telescope, MDT for short. As the name suggests it is a >> Deuterium focused experiment. We have planned for a pathfinder station to >> be built for the end of this year and had in mind the SNAP boards for the >> digital back-end. We were set to buy four SNAPs by the end of next month >> but a sudden slash in funding has put a dent in our plans. I was wondering >> if anyone has any unused SNAPs that we can get off their hands at a reduced >> price. Currently one SNAP is sitting at $3500 from Digicom. Anything below >> $3000 will greatly help us. We will obviously be extremely grateful for >> donations. Hope to have some positive feedback from some of you. >> >> >> Kind Regards, >> Vinand Prayag >> >> Do you have a pointer to a project description? >> >> Why such high bandwidth if you're looking at Deuterium? >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "[email protected]" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> > -- > You received this message because you are subscribed to the Google Groups " > [email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected].
