Answered

• LMX2595: LMX2595 spurs

  

  Kailyn Chen

  Resolved

  Part Number: LMX2595 Hello, When LMX2595 output above 15Ghz signal, it would appear 3/4 spurs, below 15GHz is normal. For example, if LMX2595 is configured 15.35Ghz output, it appears spurs at 3/4*15.35GHz=11.5125GHz. How to solve the problems? Best…

  • Resolved

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: Changing charge pump current results in unwanted transient

  

  Dylan g

  Part Number: LMX2595 Hello, we have recently encountered a problem when stepping frequency that we are unsure why it happens When tuning to a new frequency in Full Assist, we are opening the charge pump from 3mA to 6mA, writing out the calibrated data…

  • 13 days ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: LMX2595

  

  Francisco Gutiérrez

  TI Thinks Resolved

  Part Number: LMX2595 Hello, I would to know if LMX2594RHAT is compatible (Pinout & control) with LMX2595RHAT. In case of programming frequencies from 500MHz to 5GHz, can I change LMX2595RHAT to LMX2594RHAT without modificacion of Pcb and firmware.…

  • 4 months ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: Spur issue at the frequency ramp output

  

  Sudheer Kumar K

  TI Thinks Resolved

  Part Number: LMX2595 We are using LMX2595 PLL in one of our design. We want use Ramp function in that with frequency ranging from 5.71 GHz to 5.9 GHz. we are observing more spurs in 1GHz span. Attached is the settings we followed, loop filter value used…

  • 1 month ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: output has noise

  

  Kailyn Chen

  TI Thinks Resolved

  Part Number: LMX2595 Hello, The reference clock is 100Mhz，output is 15.7Ghz，output curve and configuration are as following, and we could find that there is noise of the output. Could you please help to analyze? Best reagrds Kailyn

  • 2 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMX2595: MUXout pin issue (readback funtion not working)

  

  Gerardo b

  Resolved

  Part Number: LMX2595 I am working with the LMX2595. Regarding the SPI connection, I am able to write it, but it seems impossible to read any data from it so far. I know that the pin to read data is MUXOUT but I have not seen any data from it. However…

  • Resolved

  • 1 month ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: Lock Issues with Full Assist Calibration - Temperature

  

  Dylan g

  Part Number: LMX2595 Hello we are encountering locking issues at hotter and colder temperatures when using a full assist calibration done at 23C It is bizarre because we can see the output become locked again on the spectrum analyzer when moving the temperature…

  • 1 month ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: Advantage of VCO Ramp

  

  Ray Vincent Aranzaso

  TI Thinks Resolved

  Part Number: LMX2595 Hi, Good Day. What is the advantage of VCO Ramp function on LMX2595? Please advise. Thank you very much. Best Regards, Ray Vincent

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: Lock detect reports sporadic false lock when REFin removed

  

  Toby Brown

  TI Thinks Resolved

  Part Number: LMX2595 Hello, We are using the LMX2595 on multiple platforms and have found that the Lock Detect output from the MUX pin (LD_TYPE=1) can report false lock transitions when the REFin oscilaltor is removed. Some devices don't do it, some…

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

• LMX2595: calibration problem, MUXOUT is pulled up twice at one correct frequency

  

  LIU

  Part Number: LMX2595 I am programming an LMX2595 in partial Assist mode, and will use the MUXOUT pin to confirm that the VCO is locked.I use frequency from 7.988GHz to 12GHz, each step is 2MHz with 2007 steps. But I found that MUXOUT is pulled up twice at…

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

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