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Technical question for Nexys4-DDR (410-292)


Question

Dear DIGILENT team,

 

Thank you for your support.

I have a questions,

1. How much is the limit for Analog signal and Digital signal for Vin?
2. How much is the limit for Analog signal and Digital signal for Vout?
3. How many in channels and out channels for Analog signal ?
4. How many in channels and out channels for Digital signal ?
5. How many input impedance for input 1 channel?
6. How many output impedance for output 1 channel?
7. How much is the Frequency limit for Analog signal for input?
 

Is those information on the datasheet?

 

I couldn't find it.

If you can answer these, that's great help.

 

 

Thank you so much for your kindness.

 

 

Best Regards,

 

Takashi 

 

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Hi Takashi,

I am not very sure what you are asking. If you are referring to the XADC Pmod, I can tell you that this is wired to the auxiliary analog input pins of the FPGA. The pins can be configured as analog input, or digital input/output. The XADC is a dual channel 12-bit ADC converter and can go up to 1MSPS.

The VCC pin of the Pmod is able to provide 3.3V . The FPGA Bank (Bank 15) where the analog pins are connected is also powered at 3.3V.

If you want more information about the XADC and how you can use it, you can check the Xilinx UG480 https://www.xilinx.com/support/documentation/user_guides/ug480_7Series_XADC.pdf

For other information you can also check the Reference Manual: https://reference.digilentinc.com/reference/programmable-logic/nexys-a7/reference-manual

Regards,

Bianca

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