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Showing 237 results View by: Thread Post Sort by
    Answered
  • LMK05028: LMK05028: How to use GPS PPS as the reference clock to generate 40 MHz

    Patrice Lacouture
    Patrice Lacouture
    Resolved
    Part Number: LMK05028 Other Parts Discussed in Thread: SN74AXC8T245EVM , LMK5C33216 , LMK5B33216 Hello, I try to follow the test in the forum :"LMK05028: How to use GPS PPS as the reference clock to prevent output frequency drift?" LMK05028: How to…
    • Resolved
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • LMK05028: LMK05028 sample

    Kota Morihara
    Kota Morihara
    TI Thinks Resolved
    Part Number: LMK05028 Since the LMK05028 is a sample program target device, I would like to apply for a sample, but the maximum quantity is 0. Can I get a sample of this device? Please give me a sample for consideration.
    • over 3 years ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMK05028: Register Map

    Kei Kuwahara
    Kei Kuwahara
    Resolved
    Part Number: LMK05028 Hello team, I can't find register map for this device on the datasheet. Could you please tell me which register to look for for each below: Which INx is selected for each DPLLs Which DPLL is selected for each OUTx Lock…
    • Resolved
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMK05028: Problem getting PLL2 to both phase and frequency lock to IN0 ref input.

    Gary Hubbard
    Gary Hubbard
    Resolved
    Part Number: LMK05028 Tool/software: I am trying to use the LMK05028 part to generate a reference clock using PLL1 and clean an incoming clock using PLL2. I am using the evaluation board, where the XO frequency is 10 MHz and the TCXO frequency is 48…
    • Resolved
    • over 1 year ago
    • Clock & timing
    • Clock & timing forum
  • LMK05028: PLL1 doesn't achieve lock, but PLL2 does

    Jeffrey Siegel
    Jeffrey Siegel
    Part Number: LMK05028 Input reference is 10MHz on Input 3 coming from Rohde Schwartz test equipment (high quality OCXO source) Overall Status 0x000D Read: 0x00000022 PLL1 Lock Status 0x000E Read: 0x000000c0 PLL2 Lock Status 0x000F Read: 0x00000000 …
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • LMK05028: Further problem with getting PLL2 to lock to a reference input when configured in 2-loop, REF-DPLL mode.

    Gary Hubbard
    Gary Hubbard
    Part Number: LMK05028 Tool/software: Hi, Further to my original question “LMK05028: Problem getting PLL2 to both phase and frequency lock to IN0 ref input” on 29-Oct-24, I now have another problem. PLL2 is configured in 2-loop REF-DPLL mode. I want…
    • over 1 year ago
    • Clock & timing
    • Clock & timing forum
  • LMK05028: LMK05028

    roei jubani1
    roei jubani1
    TI Thinks Resolved
    Part Number: LMK05028 i want to use one of the inputs of LMK05028 my input signal is 100MHZ LVCMOS. I saw on the elec. characteristics (p10 on datasheet) that the input freq of LVCMOS input is between 1-250Mhz, but on the pin function explanation…
    • over 4 years ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMK05028: Not phase locked to 25MHz input reference.

    Benjamin Hirt
    Benjamin Hirt
    Resolved
    Part Number: LMK05028 Hello, I have a design working with the LMK05028. I am attempting to use it in the 2 loop; REF, APLL mode. I have a LVDS input on IN0 at 25MHz and an XO at 48MHz. I'm using both PLL1 and 2 to output 100MHz and 312.5MHz respectively…
    • Resolved
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • LMK05028: LMK05028 I2C driver guidance

    RanjithKumar T R
    RanjithKumar T R
    TI Thinks Resolved
    Part Number: LMK05028 Hi team, While calculating the DCO frequency step size value, We get the denominator value as 0. While reading the denominator (DPLL2_REF_DEN_BY4(R511) - DPLL2_REF_DEN_BY0(R515) )register value in tics pro is also 0. …
    • over 4 years ago
    • Clock & timing
    • Clock & timing forum
  • LMK05028: LMK05028 TCXO PPM ACCURECY

    Qi Liu
    Qi Liu
    TI Thinks Resolved
    Part Number: LMK05028 Hi, support team My customer has the questions as follow: I want to use LMK05028 with different TCXO then the EVB my TCXO PN is SiT5155AI-FK-33E0-10.0000x with 0.5ppm freq stability over temp. if i work with external ref_clk_input…
    • over 4 years ago
    • Clock & timing
    • Clock & timing forum
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