The recommended PCB layout for the MAX9812LEXT+ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the microphone. Additionally, the input and output traces should be kept short and away from noise sources.
To optimize the gain setting, you need to consider the microphone sensitivity, the desired signal-to-noise ratio, and the maximum allowable signal amplitude. You can use the gain setting formula provided in the datasheet and adjust it based on your specific requirements.
Clock jitter can affect the MAX9812LEXT+ performance by introducing noise and distortion in the output signal. To minimize the effect of clock jitter, use a high-quality clock source and ensure that the clock signal is clean and stable.
No, the MAX9812LEXT+ is designed to work with analog microphones. It does not have a digital interface to connect to digital microphones. You need to use an analog microphone with the MAX9812LEXT+.
To ensure EMC with the MAX9812LEXT+, follow proper PCB design and layout practices, use shielding and grounding techniques, and ensure that the device is properly decoupled from the power supply. Additionally, use EMI filters and shielding on the input and output lines.
