Part Number: LMX2615-SP
Need to determine Output swing of RFoutAP/M to make sure it's compatible with receiving device and having difficulty using Pout specifications on Pg 8 in Table 6.5 of datasheet (6dBM at 8GHz and 4dBm at 15GHz) and Pout graphs shown in Figure 16 on Pg 14 of the datasheet to determine this.
If you could answer the 3 questions posed in the following sketch that would go a long way towards helping me determine compatibility. NOTE: All Traces In Sketch Are Single Ended 50ohms
Thank You, John
Assume the single-ended output power at OUTA_PWR = 31 is 7dBm, then you should measure 1.415Vpp at point P using a single-ended probe. You will measure the same voltage swing at point M but its phase is 180 deg shifted from P.
If you use a differential probe to measure the voltage swing across P and M, you will measure 2.83Vpp.
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.
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.