JAJSGA9C September 2018 – September 2019 ISO1500
To make sure device operation is reliable at all data rates and supply voltages, a 0.1-μF bypass capacitor is recommended at the logic and transceiver supply pins (VCC1 and VCC2). The capacitors should be placed as near to the supply pins as possible. Side 2 requires one VCC2 decoupling capacitor on each VCC2 pin. If only one 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 TI's SN6505B device. For such applications, detailed power supply design and transformer selection recommendations are available in the SN6505 Low-Noise 1-A Transformer Drivers for Isolated Power Supplies data sheet.