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About connection between ADN4680E and FPGA

Hi all,

We are considering the following configurations using ADN4680E.

We want a direct connection between the ADN4680E and the FPGA.
Is this method correct?
Or should we also use a Buffer IC or something like that?

If there are any problems, it would be great if you'd let me know.

Best Regards,
Hiro

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  • Hi Hiro, 

    This configuration is perfectly valid.

    The 3.3V I/O bank of the FPGA can be connected directly to the digital DI, DE, /RE, RO, /FS and ENP pins of the ADN4680E, no buffer IC is needed.

    If you which to use lower voltage I/O banks on the FPGA, a level shifter like the ADG3246 can be used to interface with the ADN4680E.

    Regards,

    Neil

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  • Hi Hiro, 

    This configuration is perfectly valid.

    The 3.3V I/O bank of the FPGA can be connected directly to the digital DI, DE, /RE, RO, /FS and ENP pins of the ADN4680E, no buffer IC is needed.

    If you which to use lower voltage I/O banks on the FPGA, a level shifter like the ADG3246 can be used to interface with the ADN4680E.

    Regards,

    Neil

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