ISO7740 datasheet(28/43 Pages) TI1

28 / 43 page

Time = 2.5 ns / div

ISO7740, ISO7741, ISO7742

SLLSEP4D – MARCH 2016 – REVISED MAY 2017

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Product Folder Links: ISO7740 ISO7741 ISO7742

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9.2.3 Application Curve

The following typical eye diagrams of the ISO774x family of devices indicates low jitter and wide open eye at the

maximum data rate of 100 Mbps.

Figure 24. Eye Diagram at 100 Mbps PRBS 216 – 1, 5 V and

25°C

Figure 25. Eye Diagram at 100 Mbps PRBS 216 – 1, 3.3 V

and 25°C

Figure 26. Eye Diagram at 100 Mbps PRBS 216 – 1, 2.5 V 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

at the input and output supply pins (VCC1 and VCC2). The capacitors should be placed as close to the supply pins

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 SN6501 Transformer Driver for Isolated Power Supplies (SLLSEA0) or SN6505A Low-Noise 1-A

Transformer Drivers for Isolated Power Supplies (SLLSEP9).

ISO7740 Datasheet(PDF) 28 Page - Texas Instruments