The recommended layout and routing for the WM8985CGEFL can be found in the Cirrus Logic application note AN235, which provides guidelines for PCB layout, component placement, and routing to ensure optimal performance and minimize noise.
The WM8985CGEFL can be configured for different audio interfaces such as I2S, SPI, and AC'97 through the use of external resistors and capacitors, as well as programming the device's registers. Refer to the datasheet and application notes for specific configuration examples.
The recommended power-up sequence for the WM8985CGEFL is to apply power to the analog supply (AVDD) first, followed by the digital supply (DVDD), and then the clock signal. This ensures proper device initialization and prevents damage to the device.
Common issues with the WM8985CGEFL can be troubleshooted by checking the device's register settings, verifying the clock and data signal integrity, and ensuring proper power supply and grounding. Refer to the datasheet and application notes for specific troubleshooting guidelines.
The WM8985CGEFL has a maximum junction temperature of 150°C. To ensure reliable operation, the device should be operated within the recommended temperature range, and proper thermal design and heat sinking should be implemented to prevent overheating.
