ADAU1381BCBZ-RL

Overview

The ADAU1381BCBZ-RL is a low-power, 24-bit stereo audio codec manufactured by Analog Devices Inc. It features a built-in sound engine for enhanced recording and playback processing, including wind noise detection, dual-band automatic level control, and a 6-band equalizer. The device supports sampling rates from 8 kHz to 96 kHz with a serial interface compatible with I2S, left-justified, right-justified, or TDM modes. It integrates a 400 mW speaker amplifier into an 8 Ω load, stereo line outputs, and pseudo-differential microphone inputs. Power supply voltages range from 1.8 V to 3.65 V, and the component is housed in a 30-ball WLCSP package.

Feature Summary

• Integrated sound engine providing digital signal processing capabilities such as wind noise autofiltering and dual-band automatic level control.
• Built-in Class-D speaker amplifier capable of driving dynamic speakers directly.
• Flexible clock generation via a programmable PLL supporting various master clock frequencies.
• Supports both analog pseudo-differential and optional digital PDM microphone inputs.

Applications

• Digital still cameras
• Digital video cameras

Procurement Notes

Verify the specific ordering suffix RL against current manufacturer documentation to confirm reel packaging specifications. Confirm that the component status remains active or check for end-of-life notifications prior to finalizing design-in decisions. Ensure compatibility with existing board layouts regarding the WLCSP footprint and thermal requirements.

Selection Notes

Select this component for applications requiring integrated audio processing and direct speaker drive capability within a compact form factor. Evaluate power consumption metrics against battery life requirements, considering the available power-saving modes. Verify that the system's microcontroller can support the required I2C or SPI control protocols and serial audio data formats.

Part Context

This part belongs to the ADAU1381 series of low-noise stereo codecs. It is designed for portable consumer electronics where space and power efficiency are critical constraints. The inclusion of a dedicated sound engine reduces the processing burden on the main application processor.

Replacement Considerations

Check for updated revisions or alternative packages within the same family. Consult official substitution guides for pin-compatible alternatives if the current package is unavailable.