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GS1528 Data Sheet
Figure 3-1: Output signal for 270Mb/s input
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Figure 3-2: Output signal for 1.485Gb/s input
When measuring return loss at the GS1528 output, it is necessary to take the
measurement for both a logic high and a logic low output condition. This is because
the output protection diodes act as a varactor (voltage controlled capacitor) as
shown in Figure 3-3.
Consequently, the output capacitance of the GS1528 is dependent on the logic
state of the output.
16632 - 5 June 2005
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