GS3441 Datasheet, PDF (18/25 Pages) Semtech Corporation – Extended Reach 3G/HD/SD Adaptive Cable Equalizer with Dual Outputs

4.8 Cable Length Indicator (CLI)
The GS3441 has a Cable Length Indicator output. This is an analog voltage in the range
of 0V to 3.3V, varying monotonically with the input cable length. See Figure 4-4 and
Table 4-6 below.
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
0
100
200
300
400
500
600
CABLE LENGTH (m)
Figure 4-4: Cable Length Indicator Output
Table 4-6: Cable Length Indicator Output
Cable Length (m) 0
40
120
160
180
200
210
260
300
400
500
600
CLI (V)
0.54 0.59 0.75 0.91 0.96 1.01 1.09 1.24 1.39 1.59 2.03 2.27
Note: The CLI output voltage is referenced to VCC_A.
GS3441 Extended Reach 3G/HD/SD Adaptive Cable
Equalizer with Dual Outputs
Final Data Sheet Rev. 1
GENDOC-056647 May 2013
www.semtech.com
18 of 25
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