LMH0074 Datasheet, PDF (6/8 Pages) Intersil Corporation – SMPTE 259M / 344M Adaptive Cable Equalizer

Application Information
PCB LAYOUT RECOMMENDATIONS
Please refer to the following Application Note on National's
website: AN-1372, “LMH0034 PCB Layout Techniques.”
The PCB layout techniques in the application note apply to
the LMH0074 as well.
SUPPLY CURRENT VS. CABLE LENGTH
The supply current (I_CC) depends on the amount of cable be-
ing equalized. The current is highest for short cable and
decreases as the cable length is increased. Figure 1 shows
supply current vs. Belden 1694A cable length for 270 Mbps
data.
30027515
FIGURE 1. Supply Current vs. Belden 1694A Cable
Length, 270 Mbps
www.national.com
6