| Pin | unction | Description | Interface Schematic |
| 1 | VCC1 | Power supply for the bias circuits.This pin draws current proportional to VPC. When VPC iS 2.5V the maximum current is about 30mA. When | VCC1 |
| 2 | GND | VPC goes down to OV the current also goes down to OmA. Ground connection. For best performance, keep traces physically short and connect immediately to ground plane. A via hole under each ground pin to the ground plane is recommended. | |
| 3 | GND | Same as pin 2 | |
| 4 | VCC2 | Power supply for the driver stage and interstage matching. An external decoupling capacitor is required. The electrical length between the pin and this capacitor affects the gain. See the application schematic for recommended line length for optimum gain. For operation at frequen- cies below 600 MHz a series inductor is required. | VCC2 Stages |
| 5 | RF IN | so I RF input. DC voltages are present at this pin, and an external blocking capacitor is required when connecting this pin to a DC path to ground. For optimum impedance matching, a shunt inductor to ground is recommended; see the application schematic for details. | See pin 4 schematic. |
| 6 | GND | Same as pin 2 | |
| 7 | GND | Same as pin 2 | |
| 8 | PC | Power control pin. A DC voltage between OV and 3.OV can be applied to control the gain. When no gain control is required this pin should be connected to a fixed voltage between 2.5V and 3.OV. This pin draws some current proportional to VPC. When VPC iS 2.5V the maximum cur- rent into this pin is about l mA. | See pin l schematic. |
| 9 | GND | Same as pin 2 | |
| 10 | GND | Same as pin 2 | |
| 11 | GND | Same as pin 2 | |
| 12 | RF OUT | RF output. The power supply for the output stage also needs to be sup- plied to this pin through the external matching circuit. The load imped- ance to this pin should be 5+jo I for maximum output power. | RFOUT |
| 13 | RF OUT | Same as pin 12. | See pin 12 schematic. |
| 14 | GND | Same as pin 2 | |
| 15 | GND | Same as pin 2 | |
| 16 | GND | Same as pin 2 | |
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