Texas Instruments provides a recommended PCB layout in the CC1175RHMR datasheet and application notes. It's essential to follow these guidelines to ensure optimal performance, especially for the RF section. A good layout can help reduce electromagnetic interference (EMI), improve impedance matching, and increase the overall reliability of the design.
To minimize power consumption, configure the CC1175RHMR to use the lowest possible frequency and output power required for your application. You can also use the device's built-in power-saving features, such as the low-power mode and automatic wake-up from sleep mode. Additionally, optimize your firmware to minimize the time spent in active mode and use the device's sleep mode whenever possible.
The CC1175RHMR is rated for operation from -40°C to 85°C. However, it's essential to consider the operating temperature range of your specific application and ensure that the device is properly cooled or heat-sinked to prevent overheating, which can affect its performance and reliability.
To troubleshoot RF performance issues, start by verifying that the device is properly configured and that the PCB layout follows the recommended guidelines. Use a spectrum analyzer to measure the RF signal and identify any issues with frequency, amplitude, or modulation. You can also use the CC1175RHMR's built-in diagnostic features, such as the RSSI (Received Signal Strength Indicator) and LQI (Link Quality Indicator), to help identify the source of the problem.
Yes, the CC1175RHMR can be used with an external antenna. However, it's essential to ensure that the antenna is properly matched to the device's impedance and that the antenna's radiation pattern and gain are suitable for your application. You may need to add additional components, such as a balun or a matching network, to ensure optimal performance.
CC1175RHMR datasheet
by Texas Instruments
