This part is a kind of semiconductor called STA-5063.

Function of this product has General Purpose 3.3V 15dBm Amplifier.

Manufacturers : Sirenza Microdevices

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Product Description Sirenza Microdevices’ STA-5063 is a general purpose class A linear amplifier which utilizes InGaP GaAs Heterojunction Bipolar Transistor (HBT) amplifier housed in a low-cost surface-mountable plastic package. This product is specifically designed as a driver amplifier for WLAN 802.11a and 5.8GHz ISM band and 3.3-3.8GHz fixed wireless applications. It can run from a fixed 3.0-3.6V supply with its on chip active bias network which includes a power up and down control. On-chip impedance matching circuitry provides a 50Ω nominal RF input and output impedance. Its high linearity makes it an ideal choice for multicarrier and digital applications. Housed in an industry standard SOT-363 package, it has no blind solder joints and designed for low cost. STA-5063 3.3 – 6.2 [ ... ]

STA-5063 PDF Datasheet Download