When selecting a Radio Receiver IC, you must prioritize the Frequency Range (e.g., FM, AM, SW, or UHF/VHF) to ensure it matches your application. Key performance metrics include Sensitivity (the ability to pick up weak signals), Selectivity (the ability to differentiate between adjacent channels), and Signal-to-Noise Ratio (SNR). For modern digital applications, verify the Interface Type (such as I2C or SPI) for MCU integration and the Power Consumption levels, especially for battery-operated portable devices.