The STM351-2 is a RF power module produced by ST company. The operating frequency range is 325-351MHz, and the output power is 1.0W.
The STM351-2 is a linear RF power module intended for wireless local loop (WLL) and other fixed‑radio‑access subscriber applications. It operates in the 325‑351 MHz band, requires a 20 V supply, and delivers up to 1.0 W average (2.0 W peak‑envelope) output power with a gain of 21 dB.
The document lists absolute maximum ratings, electrical specifications such as 12.5 % typical efficiency, 50 Ω input/output impedance, and a 200 mA quiescent current. Pin‑out details, mechanical dimensions, and handling notes are also included for system integration.
| Frequency range | 325‑351 MHz |
|---|---|
| Supply voltage (VCC) | +21 Vdc |
| Output power (average) | 1.0 W AVG (2.0 W PEP) |
| Gain | 21 dB |
| Input/Output impedance | 50 Ω |
The module operates from 325 MHz to 351 MHz.
It delivers a typical average output power of 1.0 W (2.0 W peak‑envelope).
The module requires a +21 Vdc supply.
The gain is specified as 21 dB.