Datasheet

SUPPLY CURRENT (mA)
75
55
BELDEN 1694A CABLE LENGTH (m)
0 200100
50 150
60
65
70
LMH0044
SNLS216E –APRIL 2006–REVISED APRIL 2013 www.ti.com
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 LMH0044 as well.
REPLACING THE GENNUM GS1574A
The LMH0044 is footprint compatible with the Gennum GS1574A.
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
1.485 Gbps data and Figure 3 shows supply current vs. Belden 1694A cable length for 270 Mbps data.
Figure 2. Supply Current vs. Belden 1694A Cable Length, 1.485 Gbps
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Product Folder Links: LMH0044