A 4-layer PCB with a solid ground plane and a separate power plane is recommended. The OLS249 should be placed near the antenna, and the RF traces should be kept as short as possible.
The OLS249 requires a 2.7V to 5.5V power supply, and the VCC pin should be decoupled with a 10nF capacitor. The EN pin should be tied to VCC or a digital signal for enable/disable functionality.
The OLS249 can handle up to 20dBm of input power, but it's recommended to operate at 15dBm or less for optimal performance and reliability.
The OLS249 has a complex impedance of 10.5 + j15.5 ohms at 2.4GHz. A pi-network or a T-network can be used for impedance matching, and the values of the matching components can be calculated using a Smith chart or an impedance matching tool.
The OLS249 operates from -40°C to 85°C, but the performance may degrade at extreme temperatures. It's recommended to operate within the 0°C to 70°C range for optimal performance.
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OLS249 Overview
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