A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the RF input and output traces as short as possible and away from the digital lines. Use a common mode filter or a Pi-filter to reduce noise and EMI.
The MAX2870ETJ+ requires a 3.3V power supply and a 1.8V digital supply. Ensure the power supplies are clean and well-regulated. Use a voltage regulator with a low dropout voltage to minimize power consumption. Decouple the power supplies with 10uF and 100nF capacitors.
The MAX2870ETJ+ can handle up to +10dBm of input power. However, it's recommended to limit the input power to +5dBm to ensure optimal performance and prevent damage to the device.
The MAX2870ETJ+ can be programmed using a 3-wire serial interface. Use a microcontroller to send the desired frequency band and other configuration settings to the device. Refer to the datasheet for the complete programming guide.
The typical current consumption of the MAX2870ETJ+ is 120mA at 3.3V and 10mA at 1.8V. However, the current consumption may vary depending on the operating frequency, input power, and other factors.
