ADAU1381BCPZ

Overview

The ADAU1381BCPZ is a low-power, 24-bit stereo audio codec manufactured by Analog Devices Inc. It integrates two analog-to-digital converters and two digital-to-analog converters supporting sampling rates from 8 kHz to 96 kHz. The device includes a built-in sound engine for audio processing, featuring wind noise detection, dual-band automatic level control, and a six-band equalizer. It provides a 400 mW speaker amplifier into an 8 Ω load and supports both pseudo-differential and single-ended microphone inputs. The component operates with analog and digital I/O voltages ranging from 1.8 V to 3.3 V and utilizes serial interfaces including I2C or SPI for control.

Feature Summary

• Integrated configurable sound engine providing enhanced recording and playback processing capabilities
• Built-in 400 mW speaker amplifier capable of driving dynamic speakers directly
• Supports multiple input configurations including analog stereo and optional digital PDM microphones

Applications

• Digital still cameras
• Digital video cameras

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure package compatibility. Confirm that the component meets all required environmental specifications for the intended operating temperature range. Cross-reference the datasheet revision history to validate any updates to pin functions or electrical characteristics prior to final procurement decisions.

Selection Notes

Select this component when a compact solution combining high-fidelity audio conversion with integrated power amplification is required. Ensure the system design accommodates the 1.8 V to 3.3 V supply voltage requirements for both analog and digital domains. Verify that the available serial interface protocols match the host controller's capabilities for configuration and data transfer.

Part Context

This part belongs to the ADAU1381 series of low-noise stereo codecs designed for portable multimedia applications. It is distinct from other Analog Devices audio processors by its combination of ADC/DAC functionality with a dedicated speaker driver stage. The BC prefix typically denotes the commercial temperature grade variant within the product family.

Replacement Considerations

Direct replacements must be verified through official Analog Devices substitution guides. Alternative components may require significant schematic and firmware modifications due to differences in pinout, register maps, and internal signal processing architectures.