The recommended PCB layout for the MAX985EUK-T involves placing the device near the audio input, using a ground plane to reduce noise, and keeping the analog and digital grounds separate. A 4-layer PCB with a dedicated ground plane is recommended.
To optimize the performance of the MAX985EUK-T in a noisy environment, use a low-pass filter at the input, add a ferrite bead or a common-mode choke to the power supply lines, and use a shielded cable for the audio input. Additionally, consider using a noise-reducing capacitor between the analog and digital grounds.
The MAX985EUK-T can tolerate a maximum power supply voltage of 5.5V. Exceeding this voltage may damage the device. It is recommended to use a voltage regulator to ensure a stable 5V supply.
The MAX985EUK-T can be configured for a specific audio application by adjusting the gain settings, filter cutoff frequencies, and output impedance. Refer to the datasheet and application notes for specific configuration guidelines.
The MAX985EUK-T has a thermal pad that must be connected to a thermal relief pattern on the PCB to ensure proper heat dissipation. A thermal interface material (TIM) can be used to improve heat transfer between the device and the PCB.
MAX985EUK-T datasheet
by Maxim Integrated Products
