I am trying to use a AD5734 on a custom board.
I found this sequence on a other post, ad5754---no-output, it reveals two problems.
The DVCC is up before the AVDD and the AVSS, around 5ms between DVCC and AVDD, then 2 ms later AVSS is up.
Request for information on CONFIGURING THE AD5724/AD5734/AD5754
Data Sheet AD5724/AD5734/AD5754 rev.FCONFIGURING THE AD5724/AD5734/AD5754: 'The DVCC must be brought high before any of the interface lines are powered. If this is not done, the first write…
I understand that there is no linux driver for ad5724.
I also don't find any linux driver for similar device from the same family (AD5724/AD5734/AD5754)
Is there any idea how (and if) we can use ad5724 with Linux ?
Would you be able to share the schematics especially that which involved the AD5734. Also, could you specify how are you sending the words to the part? Would you be able to provide scope shots of the /SYNC, SDIN, and SCLK lines?
The reason why you read zero from the register is that the required output range was not set and has a default setting of unipolar 5V range. It is also important to note that all DAC channels on power-down mode by default and will ignore any writes…
We have a write issue after power up. The first write to set the output range is sometimes ignored. We found that to write twice has improvement. The digital input pins are pull-up to DVCC on the board. So, DVCC and digital inputs become high…
We are using AD5734AREZ in our design and it seems that there are some problem with the output range. In the firmware, I configure it as +10.8 V output, however some times the output will be 5V once I power on the board. It does not happen very often…
My initial write on the AD5754 is ignored ?