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  Andreas Zutter47

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum

  LMK04805: slow frequency swinging +-1..10Hz

  TI Thinks Resolved

  Part Number: LMK04805 We are using the LMK04805 with a CVHD950 122.88MHz VCXO and a 30.72MHz TCXO, then we set the output divider of clock out 0 to 1, so we have 2293.76MHz at the output. Phase noise looks ok above 10Hz. But on the spectrum analyzer we...
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  HENRY JUNG

  • over 2 years ago
  • Clock & timing
  • Clock & timing forum

  LMK04805: LMK04805 Lock issue

  TI Thinks Resolved

  Part Number: LMK04805 Dears. We have used LMK04805. I am testing with LMK04805EVM. I entered 122.88Mhz into REF Clock(CLKin1) and set the GUI as follows. 122.88Mhz is supplied as a Signal Generator. Lock does not work. Why can not I lock? Thank y...
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  Derek Payne

  • 9 months ago
  • Clock & timing
  • Clock & timing forum

  RE: LMK04816: Generating 125 MHz and 150 MHz from the same LMK04816 part.

  Hi Doug, The least common multiple of 150 MHz and 125 MHz is 750 MHz, so you will need a multiple of 750 MHz to generate both frequencies. There is no multiple of 750 MHz in the 2370-2600 range. So your assumption is correct, the VCO range on the LMK04816...
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  Lee, Sam

  • over 3 years ago
  • Clock & timing
  • Clock & timing forum

  LMK04805: For typo in datasheet

  • Resolved

  Part Number: LMK04805 Hi team, Can you confirm that R26[27:26] in LMK04805 's datasheet
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  jianyang lin

  • over 3 years ago
  • Clock & timing
  • Clock & timing forum

  LMK04805: need help to check CLKout closed loop jitter spec using a commercial quality VCXO in offset=10Hz to 1KHz

  • Resolved

  Part Number: LMK04805 Dear TI engineer: Please help to check CLKout closed loop jitter spec using
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  Arvind Sridhar

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum

  RE: CDCLVP1204 / CDCLVP1212 input edge rate question

  Hi Jaime Martin, Here is a better comparison. The reference is a 100 MHz WENZEL But to your point, you are absolutely correct. If you are driving LMK04805 PLL1 configured for relatively low bandwidth, the broadband noise floor is irrelevant. Either...
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  jaime martin

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum

  RE: LMK048XX/049XX clock for RF DAC

  Noel, in this time we have changed our plans. We have now a frequency (around 2340 MHz) that needs the use, again, of LKM04805. But my main question is independent, I think, of that. Is it possible to use the LMK04805 in this "special" configuration...
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  Timothy T

  • over 3 years ago
  • Clock & timing
  • Clock & timing forum

  RE: LMK04805BEVAL: Unable to get 0-delay output

  Hello Marek, Page 23 of the EVM User Guide has some instructions on using 0-delay with CodeLoader, have you reviewed this information? Did you also review section 9.1.5 from the LMK04805 datasheet on PLL programming? 73, Timothy
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  Arvind Sridhar

  • over 6 years ago
  • Clock & timing
  • Clock & timing forum

  RE: LMK04805B loop filter

  Hi Nicolas, By permanent clocks if you mean clocks that are always active on start-up, then refer to the note below Before the LMK048xx is programmed, CLKout8 is enabled and operating at a nominal frequency (~90-99 MHz for LMK04805) and CLKout6 and...
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  jaime martin

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum

  Need of a clock receiver/mux/distributor

  Hello. We are looking for a 10 MHz receiver with minimum jitter to synchronize/lock all a transceiver system. There are two inputs to select from, one is a 50 ohm SW input with levels above 0 dBm, the other being a LVCMOS-3.3V internal oscillator. Two...

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