SNOSDC1 June 2024 LMH1229
ADVANCE INFORMATION
SDI_OUT serves as a loop-through output and is designed for transmission across 75Ω single-ended impedance. The nominal SDI cable driver output amplitude (VOD) is 800mVpp single-ended. In the presence of long output cable lengths or crosstalk, the SDI_VOD pin can be used to optimize the cable driver output with respect to the nominal amplitude. Table 6-7 details VOD settings that can be applied to SDI_OUT. The SDI_VOD pin can be overridden through register control. In addition, the nominal VOD amplitude can be changed by register control. For more information, refer to the LMH12x9 Programming Guide.
SDI_VOD(1) | DESCRIPTION |
---|---|
H | about +5% of nominal |
F | 800mVpp (nominal) |
R | about +10% of nominal |
L | about –5% of nominal |