The document introduces the SPA-1218 power amplifier from Sirenza Microdevices, which features high linearity performance and reliability, and is suitable for PCS systems and multi-carrier applications.
The SPA-1218 is a high‑efficiency GaAs HBT power amplifier designed for the 1960 MHz PCS band. It offers high linearity, on‑chip active bias control, and a surface‑mountable plastic package suitable for infrastructure equipment and multi‑carrier applications.
The document includes product features, operating frequency range, output power, gain, pin functions, absolute maximum ratings, moisture‑sensitivity level, ordering information, and recommended land‑pattern drawings for PCB layout. It also provides application circuit data and evaluation board schematics to aid designers in integrating the amplifier.
| Frequency of Operation | 1930‑1990 MHz |
|---|---|
| Output Power at 1 dB Compression | 29 dBm |
| Small Signal Gain | 11.5 dB |
| Input VSWR | 1.5 |
| Noise Figure | 2 dB |
| Device Current | 275‑330 mA |
| Device Voltage | 4.75‑5.25 V |
| Thermal Resistance (junction‑lead) | 35 °C/W |
| Max Supply Current (Icc) | 750 mA |
| Max Device Voltage | 6.0 V |
| Max RF Input Power | 29 dBm |
| Max Junction Temperature | +160 °C |
| Max Storage Temperature | +150 °C |
The SPA-1218 operates from 1930 MHz to 1990 MHz.
The maximum supply current is 750 mA.
The device can tolerate up to 29 dBm of RF input power.
Pin 2 (Vbias) is the bias control pin for the active bias network.