A 4-layer PCB with a solid ground plane and a separate power plane is recommended. The RFU01SM4ST2R should be placed near the antenna, and the antenna should be matched to 50 ohms. A decoupling capacitor should be placed close to the VCC pin.
The RFU01SM4ST2R requires a 1.8V to 3.6V power supply. A voltage regulator or a low-dropout regulator (LDO) can be used to regulate the voltage. The VCC pin should be decoupled with a 10nF capacitor to ground.
The maximum transmit power of the RFU01SM4ST2R is +20dBm (100mW). However, the actual transmit power may vary depending on the antenna and the PCB layout.
The RFU01SM4ST2R can be configured for different frequency bands by adjusting the external matching components and the antenna design. The datasheet provides a reference design for the 2.4GHz frequency band, but the device can be used in other frequency bands with proper matching and antenna design.
The operating temperature range of the RFU01SM4ST2R is -40°C to +85°C. However, the device may not operate optimally at the extreme temperatures, and the performance may degrade.
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RFU01SM4ST2R Overview
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