GS2993 Datasheet, PDF (17/23 Pages) Gennum Corporation – Automatic power-down on loss of signal

4.8 Cable Length Indicator (CLI)
The GS2993 has a Cable Length Indicator output. This is an analog voltage in the range
of 0V to 3.3V, varying monotonically with input cable length. See Figure 4-2 and
Table 4-6 below.
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0
100 200 300 400
Cable Length (m)
Figure 4-2: Cable Length Indicator Output
Table 4-6: Cable Length Indicator Output
Cable Length (m)
0
120
140
160
200
300
400
CLI (V)
0.62
1.00
1.06
1.13
1.29
1.58
1.98
NOTE: The CLI output voltage is referenced to V_{CC_A}.
GS2993 Dual Output Adaptive Cable Equalizer
Data Sheet
53966 - 4
August 2012
17 of 23
Propietary & Confidential