SPA-1318 2150 MHz 1 Watt Power Amplifier with Active Bias
The SPA-1318 is a high‑efficiency GaAs HBT power amplifier designed for the 2150 MHz PCS band. It offers active bias control, high linearity, and a surface‑mountable plastic package for infrastructure equipment.
The manual includes product features, electrical parameters, absolute maximum ratings, pin descriptions, bias‑circuit schematics, evaluation‑board layout, ordering information, and recommended land‑pattern drawings to aid designers in integrating the device.
| Frequency of Operation | 2110‑2170 MHz |
|---|---|
| Output Power at 1 dB Compression | 29.5 dBm |
| Small Signal Gain | 11.5 dB |
| Input VSWR | 1.44 |
| Device Current | 320 mA |
| Power Dissipation | 4.0 W |
| Maximum Device Voltage | 6.0 V |
| RF Input Power | 800 mW |
The manual recommends a 5 V supply for the active‑bias network, with an absolute maximum device voltage of 6 V.
The device delivers about 29.5 dBm (≈1 W) output power at the 1 dB compression point.
Pin 2 (Vbias) is the bias‑control pin for the active bias network, setting the device current.
The absolute maximum device current is 750 mA, while typical operation is around 320 mA.