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Altera_Forum's avatar
Altera_Forum
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8 years ago

LVDS over CAT7 or CAT5 cables

Hello,

I'm wondering what could be the maximal bitrate on I/Os LVDS over 50m CAT7/CAT5 cables (twisted pair).

Thanks in advance.

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
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    8 years ago

    I guess less than 50 MBPS without cable equalizer. Did you look at the cable attenuation characteristic? Ethernet 1000BASE-T (250 MBPS per pair) is specified to work over 100 CAT5 with about 24 dB attenuation at highest frequency components. But it accepts a much larger signal dynamic than LVDS.