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Modem chipset

Discussion in 'Electronic Design' started by derek, Dec 9, 2004.

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  1. derek

    derek Guest

    Hi

    Could anyone introduce me modem chipset which is 300 or 1200 and is
    buyable on the internet? I have known some chips but cannot find them
    in digikey and allied etc. For example, MC145442 and MC145407 but I
    cannot find where to buy. I also want to know the approxmate price.

    Thanks!
     
  2. Leon Heller

    Leon Heller Guest

    http://www.cermetek.com/02/lspeed.html


    Leon
     
  3. Dan Major

    Dan Major Guest

    (derek) wrote in
    Texas Instruments TMS99532 - $2.50ea at B.G. Micro http://www.bgmicro.com -
    page 7 of the catalog under "Spec. Function".
     
  4. Dave VanHorn

    Dave VanHorn Guest

    Pay scrupulous attention to the power supply decoupling in the data sheet,
    as well as decoupling the data lines. Check the chips that you get, for
    noise when SQT is asserted. If you get noise, they are defective.
     
  5. Wim Ton

    Wim Ton Guest

    Could anyone introduce me modem chipset which is 300 or 1200 and is
    The 7910 family?

    Wim
     
  6. Leon Heller

    Leon Heller Guest

    They haven't been made for yonks.

    Leon
     
  7. Dave VanHorn

    Dave VanHorn Guest

    The 7911 was better, and both were also fussy about supply and control
    signal decoupling.
     
  8. Scott Miller

    Scott Miller Guest

    CML Micro offers a whole line of chips, though they're not the most
    convenient to buy on the 'net. They've been pretty good about providing
    samples, though. I'm currently using their CMX860 for Bell 202.

    Scott
     
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