Time = 3.5 ns / div

Time = 3.5 ns / div

22

ISO7720, ISO7721

SLLSEP3A – NOVEMBER 2016 – REVISED DECEMBER 2016

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9.2.3 Application Curve

The following typical eye diagrams of the ISO772x family of devices indicate low jitter and wide open eye at the

maximum data rate of 100 Mbps.

Figure 21. ISO7720 Eye Diagram at 100 Mbps PRBS,

5 V Supplies and 25°C

Figure 22. ISO7721 Eye Diagram at 100 Mbps PRBS,

5 V Supplies and 25°C

10 Power Supply Recommendations

To help ensure reliable operation at data rates and supply voltages, a 0.1-μF bypass capacitor is recommended

as possible. If only a single primary-side power supply is available in an application, isolated power can be

generated for the secondary-side with the help of a transformer driver such as Texas Instruments' SN6501 or

SN6505A. For such applications, detailed power supply design and transformer selection recommendations are

available in the SN6501 data sheet (SLLSEA0) or SN6505A data sheet (SLLSEP9).