DAC3171: No

Jintao Xu

Prodigy 80 points

Part Number: DAC3171
Other Parts Discussed in Thread: CDCE62005

I'm using DAC3171 7-bit DDR mode, but it seems like does not work in that mode.

My setting is

reg 0----0x46fc

reg 1---0x600e

reg 2---0x3f80

reg 3---0x0001

Is it right?

over 5 years ago

0 Neeraj Gill over 5 years ago

TI__Mastermind 20541 points

Hi Jintao,

We are looking at your question and will get back to you.

Regards,

Neeraj

0 Jintao Xu over 5 years ago in reply to Neeraj Gill

Prodigy 80 points

Hi Neeraj

Thank you very much

I tried several different setting, it doesn't work anyway.

Expecting your feedback.

Regards

0 Jintao Xu over 5 years ago in reply to Neeraj Gill

Prodigy 80 points

Hi Neeraj

I changed reg1 setting to 0x400e

The reg6 reading value is 0x10

It still doesn't work

0 Neeraj Gill over 5 years ago in reply to Jintao Xu

TI__Mastermind 20541 points

DAC3171_7_BIT.cfgHi,

Please find the attached file which shows the DAC register writes needed to get the DAC work in 7 BIT MODE. The file has register writes for CDCE62005 and then register writes for DAC3171.

0 Jintao Xu over 5 years ago in reply to Neeraj Gill

Prodigy 80 points

Hi Neeraj

Thanks for your reply

I tried your recommendation and follow the power-up sequence in DAC3171 datasheet 7.5.1.

Unfortunately, it still doesn't work.

Do you need any more information from my side?

And by the way, the following issue is exactly the same with mine. I submitted this issue to Liam Wu first, then she posts it on the forom.

e2e.ti.com/.../813445

Regards

Thomas

0 Neeraj Gill over 5 years ago in reply to Jintao Xu

TI__Mastermind 20541 points

Hi Jintao,

Was your issue solved?

Regards,

Neeraj

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DAC3171: No