Other Parts Discussed in Thread: LMX2615-SP,
Dear Technical Support Departments at Texas Instruments,
In the frame of the LISA Project https://sci.esa.int/web/lisa/-/61367-mission-summary , L3 class mission in Phase B1 at the ESA Science Program, I have the role of an embedded hardware engineer at the Albert Einstein Institute https://www.aei.mpg.de/interferometry-in-space in Hannover (Germany) for the realization of part of the frequency distribution chain of its payload electronics.
After concluding several performance tests in your LMX2595 and LMX2615-SP RF Synthesizers, we have two questions related to the frequencies and phase lock of the generated signals:
- Are the LMX2595 and LMX2615 chips able to generate both 2.400GHz and 2.401GHz frequencies, at different ports and at the same time? If yes, how do we have to program the synthesizer to do so?
- When generating a 2.400GHz signal (at RFout ports) using a 10MHz reference clock (at OSCin port), we expect the 2.400GHz signal to be phase-locked to the 10MHz clock. However, we connected both signals to the oscilloscope to compare them in time domain and they seem not to be locked: one of them is used as trigger source of the oscilloscope and the other appears drifting in time. If they were phase-locked, both signals should appear locked in time domain, without any signal drifting. Are the generated signals at RFout ports always phase-locked to the input signal at OSCin port? If there is a specific configuration for that, could you please provide more details in how to do it?
