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Original question:

CDCLVD1204: CDCLVD1204

CDCLVD1204: LVDS output parameters

Fan.Wang
Intellectual 2900 points
Part Number: CDCLVD1204
Other Parts Discussed in Thread: CDCLVD110A, , SN65LVDS2

Hello Experts, 

There is a parameter of Vring, 10% max in CDCLVD1204 datasheet. Does Vring belong to any LVDS standard? I did not find this spec in CDCLVD110A datasheet.

Also, the frequency of CDCLVD1204 is 800MHz for differential inputs. What's the capacitive loading in this test? Some datasheet like SN65LVDS2 will explicitly specify 10pF as well as 100Ohms loading as the test conditions. However, I did not find the capacitive loading in the CDCLVD110A or CDCLVD1204 datasheet. 

  • 0
    TI__Genius 16845 points

    The LVDS standard is defined by ANSI/TIA/EIA-644-A. Vring was in TIA-644A at the time of this device's development, however I'm not certain whether this parameter/standard has been updated since 2001.

    I searched internally but there isn't any information available that indicates what the capacitive load was unfortunately.

    Kind regards,
    Lane