ADC and DAC information
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- Posts: 26
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ADC and DAC information
Hello,
I'm just starting to play around with the RedPitaya and it is a pretty nifty device.
Is there any chance you can give us the part numbers for the ADC and DAC for the v1.1 board?
Is undersampling possible with these ADCs?
Can they perform at higher, lower clock to reduce pipeline delay?
Thanks,
I'm just starting to play around with the RedPitaya and it is a pretty nifty device.
Is there any chance you can give us the part numbers for the ADC and DAC for the v1.1 board?
Is undersampling possible with these ADCs?
Can they perform at higher, lower clock to reduce pipeline delay?
Thanks,
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- Posts: 67
- Joined: Wed May 28, 2014 12:15 pm
Re: ADC and DAC information
Red Pitaya is equipped with LTC2145CUP-14 and DAC1401D125HL from Linear Technology. I would kindly suggest that you take a look at their datasheets and specifications to find out all the details.
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- Posts: 26
- Joined: Fri Jun 27, 2014 3:19 pm
Re: ADC and DAC information
Great thanks.
Do you have any plans on releasing some kind of schematics for the hardware? I am mainly interested in the filtering/buffering circuitry for the high speed ADC and DAC (if any).
Are the programming pins of the ADC connected?
From the file:, it doesn't seem like they are.
Do you have any plans on releasing some kind of schematics for the hardware? I am mainly interested in the filtering/buffering circuitry for the high speed ADC and DAC (if any).
Are the programming pins of the ADC connected?
From the file:
Code: Select all
RedPitaya/FPGA/release1/fpga/code/red_pitaya.xdc
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Re: ADC and DAC information
The small detail that the conversion to 2's complement is done in fpga fabric - instead of programming the ADC to do the conversion - might serve as a further hint to answer this question
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Re: ADC and DAC information
I'm working in an application that requires compensating the frequency changes in the oscillator with time, temperature, voltage, etc. would it be possible to know the part name of the 125MHz crystal oscillator?
Thanks
Thanks
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Re: ADC and DAC information
Have a look at the photos in the links on http://www.eevblog.com/forum/microcontr ... schematic/
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Re: ADC and DAC information
Hello,
I am using Redpitaya board for fpga development and i want to know if it is possible to sample the ADC at 50 MHz.
Thanks for your help.
I am using Redpitaya board for fpga development and i want to know if it is possible to sample the ADC at 50 MHz.
Thanks for your help.
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- Joined: Mon Feb 22, 2016 11:47 am
Re: ADC and DAC information
Hi,
I like to change the ADC (LTC2145-14) against a 16 bit variant (LTC2185-16) but the needed pins (43 and 44) are grounded. Is a future version of Red Pitaya planned with the connection to the necessary FPGA pins?
I like to change the ADC (LTC2145-14) against a 16 bit variant (LTC2185-16) but the needed pins (43 and 44) are grounded. Is a future version of Red Pitaya planned with the connection to the necessary FPGA pins?
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- Posts: 1441
- Joined: Sat Jun 07, 2014 12:49 pm
- Location: Königswinter
Re: ADC and DAC information
You can disconnect the 125MHz crystal oscillator and use either an external clock source or a clock generated in the FPGA in its place. For the latter scenario, you'll need to design a clock source into the FPGA logic. In both cases, some soldering is required (see here).papis_traore wrote:I am using Redpitaya board for fpga development and i want to know if it is possible to sample the ADC at 50 MHz.
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Re: ADC and DAC information
I have the same problemAndreNe wrote:Hi,
I like to change the ADC (LTC2145-14) against a 16 bit variant (LTC2185-16) but the needed pins (43 and 44) are grounded. Is a future version of Red Pitaya planned with the connection to the necessary FPGA pins?
Can I order Red Pitaya with a 16-bit ADC and zynq 7020?
I want the Calibrated kit.
Regards
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