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: ONET1141L
I have a customer that is working with the ONET1141L. They have a question a about the register 1, bit 4: "High Modulation Current enable bit".
What does this mean exactly? What is the effect to register 2,3 where the modulation current is set?
The customer will use the part in a 35Ohm transmission line at the output of the ONET1141L and wants to have here a 2Vpk-pk amplitude by increasing the modulation current. How would they do this in the registers?
Thanks and Regards,
FAE - South Germany
I'm looking into this with our team- will get back to you very soon.
Thanks for bearing with us.
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 Sriharsha Kota Pavan:
Do you have an update for me?
Thanks and regards,
In reply to Mihir Gupta65:
Yes, I just heard back from our team on this:
The "high modulation current enable" (HCENA) bit increases the bias current for the ModCurrent DACs by 25%, which means that the modulation o/p voltage (MAX) as well as the step size increases correspondingly for the same register settings of Reg 2 & 3.
If the customer wants to achieve 2Vpp SE with, we recommend them to set the HCENA = 1 and use a register setting of MODC = (800)10 or (810)10 according to the Fig. 14 in the Datasheet of ONET1141L.
Hope this helps, please feel free to ask any further questions.
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. 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 respect to these materials. 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.