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Showing 39 results View by: Thread Post Sort by
  • LMH1982: phase noise

    Joe Nguyen1
    Joe Nguyen1
    TI Thinks Resolved
    Part Number: LMH1982 Other Parts Discussed in Thread: LMH1983 , Tool/software: Do you have phase noise measurements for SD_CLK and HD_CLK? I'd like to know if the performance is similar to the LMH1983 CLKOUT1 and CLKOUT2/3.
    • 2 months ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMH1982: GENLOCK

    Zeming Kong
    Zeming Kong
    Resolved
    Part Number: LMH1982 Other Parts Discussed in Thread: LMH1983 , Hi team, The output clock frequency will change if we turn on/off GENLOCK, and it is not acceptable. Do you have any method to decrease the frequency change? Best, Zeming
    • Resolved
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMH1982: PLL specification

    Shunsuke Yamamoto
    Shunsuke Yamamoto
    Resolved
    Part Number: LMH1982 Other Parts Discussed in Thread: LMH1983 , Hi team, Is the PLL in LMH1982 same with PLL in LMH1983? Because if they are same or similar, they can utilize LMH1982 as an alternative of LMH1983. Best regards, Shunsuke Yamamoto
    • Resolved
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMH1982: Auto Format

    Zeming Kong
    Zeming Kong
    Resolved
    Part Number: LMH1982 Other Parts Discussed in Thread: LMH1983 , Hi team, LMH1983 has auto format detection function, does LMH1982 have similar funtion? Best, Zeming
    • Resolved
    • over 2 years ago
    • Clock & timing
    • Clock & timing forum
  • Answered
  • LMH1982: input format

    Yasushi Fujiwara
    Yasushi Fujiwara
    Resolved
    Part Number: LMH1982 Hello Experts, I have a question. The table 2 in the datasheet shows known supported standard timing formats. Can this device support other formats? (such as VGA Hsyc 31.469KHz?) Best Regards, Fujiwara
    • Resolved
    • over 4 years ago
    • Clock & timing
    • Clock & timing forum
  • LMH1982: Looking for Genlock IC which supports 4k60 video

    Gerald
    Gerald
    TI Thinks Resolved
    Part Number: LMH1982 Hi Team, May I ask for help? My customer concern is as shown below: " I saw LMH1982 but it doesn't support 4k60 video. The genlock application I want to use with video scaler IC deals only with V_sync not H_sync. However, LMH1982…
    • over 4 years ago
    • Interface
    • Interface forum
  • LMH1982: Unable to realize synchronous genlock function using LMH1982

    leo xue
    leo xue
    TI Thinks Resolved
    Part Number: LMH1982 Other Parts Discussed in Thread: LMH1981 hello, we are using LMH1982 to generate video clock generator with genlock, but we failed to make the video genlock and synchronization to work. please refer to below information. we get the…
    • over 7 years ago
    • Interface
    • Interface forum
  • LMH1982: No lock indication of SD_LOCK

    Pierluigi Michetti
    Pierluigi Michetti
    TI Thinks Resolved
    Part Number: LMH1982 Other Parts Discussed in Thread: LMP7711 Hello I have the strange problem reported here https://e2e.ti.com/support/interface/f/138/p/542596/1981841?tisearch=e2e-sitesearch Did anyone solve it or is it a bug? Thank you.
    • over 6 years ago
    • Interface
    • Interface forum
  • RE: [ LMH1982 ] No lock indication of SD_LOCK

    Alan O
    Alan O
    It should be OK to maximize the ICP1 value to test if it helps reduce PLL PFD input phase offset due to leakage on the Vc node. This will increase the BW and DF slightly. Besides VCXO input impedance, another potential leakage path is leakage loop…
    • over 8 years ago
    • Interface
    • Interface forum
  • RE: lmh1982: Lock not 100% reliable. Position TOF random in 5-10% of cases

    Alan O
    Alan O
    I suggest to try the following: 1) Generate Output TOF timing using the 27 MHz SD clock frequency domain (TOF_CLK=0 ,SD_FREQ=0) instead of the native HD clock frequency. Follow "Option 2" example in datasheet section 8.1.6.2.2.1. 2) While PLL1 is…
    • over 8 years ago
    • Interface
    • Interface forum
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