ADH519SPin NumberTerminalSymbolPin TypePin Description 1 VDD3 Power Supply Voltage 2 VDD2 Power Supply Voltage 3 VDD1 Power Supply Voltage 4 GND Power Ground 5 GND Power Ground 6 RF IN RF I/O RF IN 2/ 7 GND Power Ground 8 GND Power Ground 9 GND Power Ground 10 GND Power Ground 11 GND Power Ground 12 GND Power Ground 13 GND Power Ground 14 RF OUT RF I/O RF OUT 2/ 15 GND Power Ground 16 GND Power Ground Package GND Power Bottom Ground Package Lid GND Power Package lid is connected to RF/DC ground Figure 2 – Terminal Connections 1/ The package bottom has an exposed metal pad that must connect the printed circuit board (PCB) RF/DC ground. 2/ This pin is DC blocked and internally matched to 50 ohms. ASD0016589 Rev. A | Page 2 of 8