A good PCB layout for the MAX9934TAUA+ involves keeping the input and output traces short and away from noise sources, using a solid ground plane, and placing the device close to the input signal source. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog ground plane to minimize noise coupling.
The gain resistor (Rg) value depends on the desired gain and the input signal amplitude. A higher Rg value results in higher gain, but also increases the noise floor. A good starting point is to use the recommended Rg value from the datasheet, and then adjust it based on the specific application requirements.
The MAX9934TAUA+ can handle input signal amplitudes up to 5Vpp, but it's recommended to keep the input signal amplitude below 3Vpp to ensure optimal performance and minimize distortion.
The MAX9934TAUA+ has a built-in filter, but additional filtering may be necessary depending on the application. A good approach is to use a combination of passive filtering (e.g., RC filters) and active filtering (e.g., op-amp filters) to remove noise and interference.
The POR timing for the MAX9934TAUA+ is typically around 10ms, but it can vary depending on the specific application and power supply characteristics. It's recommended to wait for at least 10ms after power-on before using the device.
MAX9934TAUA+ datasheet
by Maxim Integrated Products
