This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: DAC7811
We are using DAC7811 in a new design in daisy chain mode. 32 bits in one sequence.
There are certain data pattern that lead to "freezing" the DAC7811. After sending these pattern the DAC will not accept any further data. The output will remain at the value set by the "freezing" pattern until the power supply is cycled.
Some pattern that repeatedly freeze the DAC are: 0x11D3, 0x1129, 0x172B,... there are many. The first two bytes (that go to the daisy chain) are set to 0. If the daisy chain bytes are set to other values, the DAC also freezes with DAC data that normally does not cause freezing.
The DAC behaves normal when just 16 bit data is sent.
Just solved it: it was a feedthrough in the test setup to SYNC.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Wulf Mueller:
Thank you for the update, glad the problem was relatively easily resolved.
Kevin Duke, MGTSADC Product Marketing Engineer
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.