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© 2007 Yamar Electronics Ltd.

11

DS-ISL40 R1.6

4.9

PLL Power Pins

VccPLL should be connected to Vcc. GndPLL should be connected to ground. The PLL supply has to

be sufficiently powered, to avoid any fluctuations of power supply. A capacitor of at least 47uF should

be connected as close as possible to these pins. It is recommended to keep the lines between 3.3V

power supply and the Vcc pins as short as possible with wide PCB traces for Vcc, VccPLL, Gnd and

GndPLL.