LMH0074 Datasheet, PDF (7/14 Pages) Intersil Corporation – SMPTE 259M / 344M Adaptive Cable Equalizer

LMH0074
www.ti.com
SNLS277D – AUGUST 2007 – REVISED APRIL 2013
APPLICATION INFORMATION
PCB LAYOUT RECOMMENDATIONS
Refer to the following Application Note on TI'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 being equalized. The current is highest for short cable
and decreases as the cable length is increased. Figure 2 shows supply current vs. Belden 1694A cable length for
270 Mbps data.
75
70
65
60
55
0
100
200
300
400
BELDEN 1694A CABLE LENGTH (m)
Figure 2. Supply Current vs. Belden 1694A Cable Length, 270 Mbps
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