Part Number: LMX2492 Hello,
I connected LMX2492 to an external VCO, and loop filtering adopted the fourth-order passive form. The simulation control adopted the TiPLLatinum and TICS Pro provided by Ti, in which the phase margin was set at 49.7° and the…
Part Number: LMX2492 Hi team,
The customer use LMX2492 + CHC2442 to generate 24G source signal, originally, 40MHz TCXO feeding to LMX2492, they works well for 24GHz source signal generation. However, when switching to 100MHz VCXO feeding to LMX2492, they could not functionally be ope…
Hi Cherry,
Linearity and phase noise are contradict to each other. To get better linearity, we need higher loop bandwidth. However, once we open wide the loop, fractional spurs problem will get worst. As a result, phase noise is bad.
If you need both…
Part Number: LMX2492 Hi Team,
The frequency synthesizer configuration is LMX2492+CHC2442, generating a Chirp signal with a time interval of 204us and a bandwidth of 50MHz. Our concern is that within the 204us duration, we need to traverse the entire 50MHz bandwidth. Does the LMX2492 need …
Part Number: LMX2492 Hello,
I am using PFD_DLY = 1 and the performace in good, but Is good idea set PFD_DLY=0 (Reserved) to reduce (a bit) the pull-in time?
What means PFD_DLY=0?
Thank you in advance
Part Number: LMX2492 Hi Team,
Good day. Can you please help with the inquiry below?
A customer use LMX2492 + CHC2442 to generate 24G source signal, originally, 40MHz TCXO feeding to LMX2492, works well for 24GHz source signal generation. However, when …
Found the problem.
Our LO section is shielded and it seems there are some parasitic feedbacks in section space. We added RF absorber above LO section and it helped
Part Number: LMX2492 Hi Texas team,
We want to use LMX2492 IC as PLL for our X-band transmitter designing, before going to the PCB level we want to simulate our whole system in ADS software. IBIS file given in website is enough for simulation or you…
Part Number: LMX2492-Q1
Hi,
When reading table 7.6 of the LMX2492-Q1 datasheet, the following question arises:
What is the frequency range that I can use on pin fOSCin if the signal is single ended ?
I think that there is no problem in using the following…