The recommended power-up sequence is to apply VDD first, followed by VDDIO, and then the clock signal. This ensures proper initialization of the device.
The WM8940 can be configured using the I2C interface. The device has several registers that control its operation, including the audio interface, PLL, and power management. Refer to the datasheet for register descriptions and configuration examples.
The WM8940 supports clock frequencies up to 50 MHz. However, the maximum frequency may vary depending on the specific application and system requirements.
To optimize power consumption, use the WM8940's power-down modes, adjust the clock frequency, and use the device's built-in power management features, such as dynamic voltage and frequency scaling.
The WM8940 has an ESD protection rating of 2 kV human body model (HBM) and 200 V machine model (MM).
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WM8940CGEFL/V Overview
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