A good PCB layout for the MAX9820ETB+T involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog layer to minimize noise.
The MAX9820ETB+T requires a single 2.7V to 5.5V power supply. It's recommended to power the device with a clean, low-noise power supply, and to sequence the power-on in the following order: AVDD, DVDD, and finally, the input signals.
The MAX9820ETB+T can handle input signal amplitudes up to 2.2Vrms (6.2Vpp) without distortion or clipping. However, it's recommended to keep the input signal amplitude below 2Vrms (5.6Vpp) to ensure optimal performance.
To optimize EMI performance, it's recommended to use a common-mode choke or a ferrite bead on the input lines, and to keep the device away from other noise-generating components. Additionally, using a shielded enclosure and minimizing the length of the input lines can also help reduce EMI.
The MAX9820ETB+T is specified to operate over a temperature range of -40°C to +85°C. However, it's recommended to operate the device within a temperature range of 0°C to +70°C for optimal performance and reliability.
