Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general best practices for audio circuit board design, such as separating analog and digital grounds, using a solid ground plane, and minimizing trace lengths and widths.
Proper biasing of the LM4810 involves setting the voltage on the Bypass pin (BP) to 1/2 of the supply voltage (VCC) and ensuring that the voltage on the Shutdown pin (SD) is below 0.8V to enable the device. Additionally, the input pins should be biased to the desired common-mode voltage.
The maximum power dissipation of the LM4810 is dependent on the ambient temperature and the thermal resistance of the package. To ensure the device doesn't overheat, it's essential to provide adequate heat sinking, such as a thermal pad or a heat sink, and to keep the ambient temperature within the recommended operating range.
Yes, the LM4810 can be used in a stereo audio application by using two devices, one for each channel. The devices should be configured in a master-slave arrangement, with the master device providing the clock signal to the slave device. The datasheet provides more information on how to configure the devices for stereo operation.
The recommended input and output coupling capacitor value for the LM4810 is dependent on the specific application and the desired frequency response. However, a general rule of thumb is to use a capacitor value of 1uF to 10uF for input and output coupling, with a voltage rating that exceeds the maximum input or output voltage.
LM4810MMX/NOPB datasheet
by Texas Instruments
