The recommended power-up sequence is to apply the analog power supply (VDDA) first, followed by the digital power supply (VDDD). This ensures that the analog circuitry is powered up before the digital circuitry.
To optimize performance in a noisy environment, ensure that the device is properly decoupled, use a low-ESR capacitor for power supply filtering, and consider using a ferrite bead or common-mode choke to reduce high-frequency noise.
The WM8740SEDS/V supports clock frequencies up to 192 kHz, but the maximum frequency may vary depending on the specific application and system requirements.
To configure the WM8740SEDS/V for master clock mode, set the MCLK pin to the desired clock frequency, and ensure that the BCLK and LRCLK pins are properly configured to match the clock frequency and audio format.
The recommended layout and routing for the WM8740SEDS/V involves keeping analog and digital signals separate, using a star-grounding scheme, and minimizing signal trace lengths and vias to reduce noise and crosstalk.
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WM8740SEDS/V Overview
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