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Clock & timing

Clock & timing

Clock & timing forum

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Texas Instruments (TI) Clock & timing support forum is an extensive online knowledge base where millions of technical questions and solutions are available 24/7. You can search clock & timing IC content or ask technical support questions on everything from clock synchronizers and generators to clock buffers and timers. Find the right solution for your circuit design challenges by using our TI E2E™ support forums that are supported by thousands of contributing TI experts.

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Frequent questions
  • [FAQ] RF synthesizers: If the datasheet shows all 1’s and 0’s in the register maps, do I have to program them?

    Noel Fung
    Noel Fung
    Some registers in the register maps do not have configurable register bits but they are fixed to some 1's and 0's, do we have to program these registers?
    • Answered
    • over 4 years ago
    • Clock & timing
    • Clock & timing forum
  • [FAQ] RF synthesizers: Can I modulate the internal VCO of a RF synthesizer?

    Noel Fung
    Noel Fung
    I want to do FM modulation with the internal VCO, is this possible? Can you tell me how to feed the modulation signal to the VCO?
    • Answered
    • over 4 years ago
    • Clock & timing
    • Clock & timing forum
  • [FAQ] How do I design a pulse width modulator (PWM) circuit using LMC555, TLC555, LM555, NA555, NE555, SA555, or SE555?

    Ron Michallick
    Ron Michallick
    Other Parts Discussed in Thread: LM293 How does the PWM example in the data sheet work? What are the limitations of the data sheet PWM example? Is there a way to improve linearity and duty cycle range?
    • over 5 years ago
    • Clock & timing
    • Clock & timing forum
  • [FAQ] How do I design a-stable timer, oscillator, circuits using LMC555, TLC555, LM555, NA555, NE555, SA555, or SE555?

    Ron Michallick
    Ron Michallick
    Other Parts Discussed in Thread: LMC555 , NE555 , LM555 , NA555 , TLC551 , SE555 , TLC552 , TLC555 , SA555 , CD4060B , CD4024B , CD4040B , CD4020B What is the difference between the part numbers? How is the output frequency and duty cycle set? Why…
    • Answered
    • over 5 years ago
    • Clock & timing
    • Clock & timing forum
  • [FAQ] How do I design monostable timer circuits using LMC555, TLC555, LM555, NA555, NE555, SA555, or SE555?

    Ron Michallick
    Ron Michallick
    Other Parts Discussed in Thread: LMC555 , NE555 , LM555 , NA555 , TLC551 , SE555 , TLC552 , TLC555 , SA555 , CD74HC4060 , SN74LV8154 This FAQ covers mono-stable circuits using the LM555, NA555, NE555, SA555, and SE555 timers that are called LM, NA, NE…
    • over 5 years ago
    • Clock & timing
    • Clock & timing forum
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View FAQ threads
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  • Answered

    LMK04828: SYSREF to device clock alignment 0 Locked

    317 views
    1 reply
    Latest over 5 years ago
    by Derek Payne
  • Answered

    LMK04821: convert SYSREF output to single-end to drive LMG1020 0 Locked

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    3 replies
    Latest over 5 years ago
    by Derek Payne
  • Answered

    Functional replacement for LTC6908-1 0 Locked

    271 views
    3 replies
    Latest over 5 years ago
    by Lane Boyd
  • Suggested Answer

    CDCE813-Q1: Less than 8kHz input 0 Locked

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    Latest over 5 years ago
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    CDCLVC1102: Asynchronous 1G pin of CDCLVC11xx 0 Locked

    271 views
    1 reply
    Latest over 5 years ago
    by Lane Boyd
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    758 views
    3 replies
    Latest over 5 years ago
    by Derek Payne
  • Not Answered

    LMK05028: Output phase synchronization to input 1PPS 0 Locked

    2447 views
    15 replies
    Latest over 5 years ago
    by Amin Eshraghi
  • Answered

    LMK04906: Waiting time 0 Locked

    254 views
    1 reply
    Latest over 5 years ago
    by Derek Payne
  • Answered

    LMK03318: STAT1 and STAT0 selection to be 3.3V LVCMOS 0 Locked

    272 views
    1 reply
    Latest over 5 years ago
    by Lane Boyd
  • Not Answered

    LMX2594EVM: defective, with instabilities and spurs? 0 Locked

    304 views
    2 replies
    Latest over 5 years ago
    by Ion Prisecaru
  • Not Answered

    LMX2594EVM: are there anyways to remove spurious? 0 Locked

    304 views
    1 reply
    Latest over 5 years ago
    by Noel Fung
  • Answered

    TICSPRO-SW: Unable to download TICSPRO-SW 0 Locked

    784 views
    3 replies
    Latest over 5 years ago
    by Colman Cheung
  • Suggested Answer

    TICSPRO-SW: The link is not accessible 0 Locked

    403 views
    2 replies
    Latest over 5 years ago
    by Derek Payne
  • Suggested Answer

    LMX2594: Recommended 100MHz Clock Phase Noise? 0 Locked

    346 views
    1 reply
    Latest over 5 years ago
    by Dean Banerjee
  • Suggested Answer

    LMK00804B-Q1: Pin treatment on Thermal PAD and A1-A4 0 Locked

    264 views
    1 reply
    Latest over 5 years ago
    by Lane Boyd
  • Answered

    LMX2592: Clock Driver 0 Locked

    361 views
    6 replies
    Latest over 5 years ago
    by Randy4TIics
  • Suggested Answer

    LMX2594EVM: port to port isolation issue or cross talk 0 Locked

    249 views
    1 reply
    Latest over 5 years ago
    by Vibhu Vanjari
  • Answered

    LMX2594: LMX2594 lock problem 0 Locked

    1217 views
    6 replies
    Latest over 5 years ago
    by user6270634
  • Suggested Answer

    LMX2572: Frequency range of the reference clock and RF power needed from that clock. 0 Locked

    347 views
    3 replies
    Latest over 5 years ago
    by Vibhu Vanjari
  • Answered

    LMK05318: Vicm(Input Common Mode Voltage) and VIDpp(Input Voltage Swing Differential peak-peak) 0 Locked

    608 views
    1 reply
    Latest over 5 years ago
    by Shawn Han
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