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Showing 510 results View by: Thread Post Sort by
    Answered
  • RE: spice model for LMH6552

    Hooman Hashemi
    Hooman Hashemi
    Resolved
    Hi, Here is the pspice file (zip) shown as *.mod (change the extension to *.cir or *.txt to use with your simulation) on the LMH6552 Product Folder (under "Tools and Software"): Regards, Hooman
    • over 9 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: How to synchronize two LM98722 AFEs

    Hooman Hashemi
    Hooman Hashemi
    Hi John, It should be possible to synchronize the LM98722 AFEs as you are intending. You will need to make sure that the SH_R input meets setup and hold timing with the applied INCLK of each device. This will be easier to do if the INCLK is at pixel…
    • over 9 years ago
    • Data converters
    • Data converters forum
  • RE: LMH6629 3dB BW

    Hooman Hashemi
    Hooman Hashemi
    Hi KPK, To answer your questions about the LMH6629 Transimpedance Amplifier, please refer to Equations 8, and 9, copied below: Assuming GBWP = 4GHz, Cin= 100pF, RF= 20k. 1. f(-3dB) = 17.8MHz (from Equation 9) 2. CF = 0.45pF (from Equation 8) …
    • over 9 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: LM98725 - PLL Locking

    Hooman Hashemi
    Hooman Hashemi
    Hi Christian, The latency through the device from INCLK to CLKOUT output will vary somewhat from part to part due to process variability, random mismatch, etc. For this reason you must use the CLKOUT output from each IC to capture the DOUTx data from…
    • over 9 years ago
    • Data converters
    • Data converters forum
  • RE: Question on the VPP/VNN voltatge description in the datasheet of LM96551

    Hooman Hashemi
    Hooman Hashemi
    Hello Frank, The operating conditions you are asking about is what page 4 specifies (3.3V to 50V) and which is reiterated in the Operating Ratings table on page 5. The absolute maximum ratings are voltage levels that if you exceed you have the chance…
    • over 9 years ago
    • Data converters
    • Data converters forum
  • RE: LMH1251, wrong pulse width of V sync.

    Hooman Hashemi
    Hooman Hashemi
    Hi Shinichi, From talking to the designer, the answer I got was "the trailing edge is not going to occur at an accurate point, but the leading edge will be". Since he is no longer in my group, unfortunately I cannot push him for more detail. I hope…
    • over 9 years ago
    • Data converters
    • Data converters forum
  • Answered
  • RE: LMH6518 reference designs

    Hooman Hashemi
    Hooman Hashemi
    Resolved
    Hi, That LMH6518 circuitry (Figure 69) comes from the Reference book listed in the datasheet: "Wideband amplifiers by Peter Staric and Erik Margan, published by Springer in 2006. (Section 5.2)." Maybe you can do a deeper dive by getting the book…
    • over 9 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: LM6171

    Hooman Hashemi
    Hooman Hashemi
    Hi Jared, Please go ahead and forward all your schematics to that same TI email I provided and I'll forward it (internally only) as needed. Regards, Hooman
    • over 9 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: Parasitic capacitances on the inverting and non-inverting inputs for op amp LM6181IN/NOPB

    Hooman Hashemi
    Hooman Hashemi
    Hello Mark, Unfortunately those parasitic capacitance values you asked for are not available, and I hate to just guess at some numbers. I'm assuming that you need these values to predict the device behavior under conditions not covered in the datasheet…
    • over 10 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: Heat dissipation Vs Power consumption of CDCM7005RGZT

    Hooman Hashemi
    Hooman Hashemi
    Hello, I am not entirely sure I understand the distinction you draw between the Power dissipation and Heat dissipation. I have always used these interchangeably as I believe any power dissipation will be in the form of heat that needs to escape the…
    • over 10 years ago
    • Clock & timing
    • Clock & timing forum
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