Analog/Serdes interview questions/leetcode type

Intel
msqY85

Go to company page Intel

msqY85
Sep 19, 2020 11 Comments

Looking for pointers on phone/f2f interview questions for analog serdes domains...wish analog had a leetcode type stash...#hardware #interview #analog #serdes

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TOP 11 Comments
  • I’d expect DFE, FFE, Tap spacing. DAC/ADC. DFE error propagation... CTLE. Channel types and reach. Power consumption and trade offs. Measurements and what they mean not simply regurgitating standards. Being able to explain makes a big difference.
    Sep 21, 2020 2
    • Intel
      msqY85

      Go to company page Intel

      msqY85
      OP
      Thanks for the response. Pardon me if I’m asking too much, for EQ circuit design most of us have pointers to books/lectures...for a more high level like you have mentioned serdes types/reach, power consumption tradeoffs do you have any ieee papers or pointers for preparation? TIA.
      Sep 21, 2020
    • Go look up the 400GbE IEEE task force. Start at the AdHoc and work your way through task force presentations. That stuff will give you the background and the “why.” You need not look at every presentation. If you start at AdHoc you’ll get a good sense of which ones/authors/companies to skip.

      https://www.ieee802.org/3/bs/

      https://www.ieee802.org/3/bs/public/adhoc/
      Sep 21, 2020
    • AMD
      rJEK23

      Go to company page AMD

      rJEK23
      This is great too, I have heard Prof NK lectures in the past. The accent can be a bit thick at times though..
      Sep 20, 2020
  • AMD
    rJEK23

    Go to company page AMD

    rJEK23
    Equalization techniques, LMS adaptation, CTLE etc. featured heavily on my interviews. Also, a lot of interviews went back to analog basics, feedback loops, Opamps, mirrors, noise , etc.
    Sep 19, 2020 0
  • Intel
    msqY85

    Go to company page Intel

    msqY85
    OP
    Thanks rJEK23, targeting design engineer roles, not interested in lead...i havent worked on adaptation, worked on eq circuits...do they ask more than theory details for adaptation? Any pointers for this...elad alons lec look good but he glosses over this stuff...basics razavi i guess
    Sep 19, 2020 1
    • AMD
      rJEK23

      Go to company page AMD

      rJEK23
      Those two are both excellent resources. Razavi cover to cover , everytime I do it, i get new i sights.
      Sep 20, 2020
  • AMD
    rJEK23

    Go to company page AMD

    rJEK23
    Also, what kind of roles are you targeting, m guessing technical lead ? The scope of the interview might broaden depending on that
    Sep 19, 2020 0