GS1528B HD-LINX® II Multi-Rate Dual Slew-Rate Cable

Driver

Data Sheet

39623 - 4

August 2010

9 of 14

Figure 5-1: Output signal for 270Mb/s input

Figure 5-2: Output signal for 1.485Gb/s input

The output protection diodes act as a varactor (voltage controlled capacitor) as shown in

Figure 5-3. Therefore, when measuring return loss at the GS1528B output, it is necessary

to take the measurement for both a logic high and a logic low output condition.

Consequently, the output capacitance of the device is dependent on the logic state of the

output.

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