Dear Technical Support Team,
I'd like to avoid unexpected output of IOUTA1 and IOUTA2 during power on and not supplied (before suplied) CLKIN/CLKINC.
How does default output of DAC5681 behave such as these situation ?
Best Regards,
ttd
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Dear Technical Support Team,
I'd like to avoid unexpected output of IOUTA1 and IOUTA2 during power on and not supplied (before suplied) CLKIN/CLKINC.
How does default output of DAC5681 behave such as these situation ?
Best Regards,
ttd
HI ttd,
The SYNCP/N pins is provided in the DAC which will disable to analog output of the DAC. Please hold this pins low before you are ready for an analog signal.
Regards,
Neeraj
Neeraj,
Thank you for your reply.
I understand that SYNCP/N pins should be low for disable analog output.
Is it possible to insert pull up and pull down such as fail safe on SYNCP/N for disable the analog output during power-on ?
Or internal pull up of RESETB work, so should I install external pulldown(strong than internal pull up) on RESETB to disable analog output before FPGA drives SYNCP/N(during power-on)?
How is value of internal pull up of RESETB?
Best Regards,
ttd
Hi ttd,
I would suggest you use the SYNCP/N instead of ResetB. You can try adding a pull down and pull up on Syncp and Syncn pins respectively.
Regards,
Neeraj