Data SheetHMC7885PIN CONFIGURATION AND FUNCTION DESCRIPTIONSVG1 (1)(18) NICGNDDC (2)(17) VDD1VG1 (3)(16) GNDDCGNDRFIN (4)(15) GNDRFOUTRFIN (5)HMC7885FH18(14) RFOUTGNDRFIN (6)(13) GNDRFOUTVG2 (7)(12) NICGNDDC (8)(11) VDD2VG2 (9)(10) GNDDCNOTES 002 1. THE PACKAGE BASE MUST BE MOUNTED TO A SUITABLE HEAT SINK FOR THE RF AND DC GROUND. IT IS RECOMMENDED TO USE 0-80 SOCKET CAP SCREWS. 12967- Figure 2. Pin Configuration Table 3. Pin Function Descriptions Pin No.MnemonicDescription 1 VG1 Supply Voltage for MMIC 1 Gates. This pin is typically −1.3 V dc. Pin 1 is connected internally to Pin 3. 2 GNDDC Power Supply Ground. 3 VG1 Supply Voltage for MMIC 1 Gates. This pin is typically −1.3 V dc. Pin 3 is connected internally to Pin 1. 4 GNDRFIN RF Input Ground. 5 RFIN RF Input. This pin is dc-coupled and matched to 50 Ω. 6 GNDRFIN RF Input Ground. 7 VG2 Supply Voltage for MMIC 2 Gates. This pin is typically −1.3 V dc. Pin 7 is connected internally to Pin 9. 8 GNDDC Power Supply Ground. 9 VG2 Supply Voltage for MMIC 2 Gates. This pin is typically −1.3 V dc. Pin 9 is connected internally to Pin 7. 10 GNDDC Power Supply Ground. 11 VDD2 Supply Voltage for MMIC 2 Drains. 12 NIC Not Internally Connected. However, this pin can be connected externally to the RF and/or dc ground. 13 GNDRFOUT RF Output Ground. 14 RFOUT RF Output. This pin is ac-coupled and matched to 50 Ω. 15 GNDRFOUT RF Output Ground. 16 GNDDC Power Supply Ground. 17 VDD1 Supply Voltage for MMIC 1 Drains. 18 NIC Not Internally Connected. However, this pin can be connected externally to the RF and/or dc ground. Package Base GND The package base must be mounted to a suitable heat sink for the RF and dc ground. It is recommended to use 0-80 socket cap screws. Rev. 0 | Page 5 of 11 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION EVALUATION BOARD ASSEMBLY BILL OF MATERIALS OUTLINE DIMENSIONS ORDERING GUIDE