Christian,
Thanks for sharing the schematic and the waveforms. Nothing particularly stands out, so this is looking more and more like a device issue rather than something related to noise or layout. I'll see if I can locate an LMX2492EVM and test repeated…
Hello Darrell,
Yes, you can do a ramp with decreasing VCO frequency.
Please refer to section "3.2.3 Continuous Trapezoid Ramp Example" of the LMX2492EVM User's Guide for an example.
Thanks,
Vibhu
Hi Narendra,
1. correct, active filter is needed in this situation.
2. Please read LMX2492EVM user's guide, the schematic has already included active filter options.
3. I think you have no choice but use active filter here, no matter what is the…
Part Number: LMX2491 Other Parts Discussed in Thread: LMX2492EVM , In the typical application schematic on page 27 of the LMX2491 datasheet shows the output of the VCO being fed back to pin 4 (FIN) of the PLL. I purchased the LMX2492EVM eval board. The…
Part Number: LMX2492 Other Parts Discussed in Thread: LMX2491 , Hi everyone,
we are using the LMX2491 for an FMCW radar application and discovered some disturbing frequencies (namely at 156 kHz and 312 kHz) at our IF signal. During deeper investigations…
Part Number: LMX2492 Hi, I currently have managed to generated a 9 to 10ghz chirp (1ghz bandwidth) using the lmx2492EVM.
I'm wondering if it is possible to generate a 6ghz to 7ghz chirp instead by just modifying the TICS pro
software configuration…
Part Number: LMX2572EVM Other Parts Discussed in Thread: LMX2491 , LMX2572 , LMX2492EVM I have the part LMX2572EVM and want to make a sawtooth linear ramp signal from (3600 - 3650 ) MHz within 1 ms.
1st option: Using automatic ramping mode and setting…
Part Number: LMX2492 Hi Texas Instruments,
I want to make 11GHz output on LMX2492 and external VCO, MAOC-009265-TR0500(VCO on LMX2492evm) or most of VCO on market have 12V Vtune, but CPout of LMX2492 is 5V. Therefore, I need an active loop filter. …
Part Number: TICSPRO-SW Other Parts Discussed in Thread: LMX2492EVM I'm trying to download the TICSPRO-SW software for use in evaluating the LMX2492EVM board, however after I fill in the 'U.S. Government export approval' form and press submit it just…
Hi Sunset,
Correct, the performance up to 6GHz is same as LMX2492. People can use LMX2492EVM to evaluate LMX2491 or LMX2492 performance is the RF input frequency is equal to or less than 6GHz.
