ADAU1461WBCPZ

Overview

The ADAU1461WBCPZ is a low-power stereo audio codec featuring an integrated SigmaDSP core. It supports 24-bit resolution with sampling rates from 8 kHz to 96 kHz. The device includes two ADCs and two DACs, achieving a typical signal-to-noise ratio of 98 dB. Power consumption is specified at 17 mW for recording and 18 mW for playback at 48 kHz. It operates on a 3.3 V analog supply (AVDD) and digital I/O supply (IOVDD). The component utilizes SPI and I2C control interfaces and is housed in a 32-lead LFCSP package.

Feature Summary

• Integrated SigmaDSP processor for real-time audio equalization and dynamics processing
• Configurable analog input mixers supporting single-ended and differential signals
• Built-in automatic level control and microphone bias voltage generation
• Flexible output drivers including headphone amplifiers and line outputs

Applications

• Automotive head units
• Automotive amplifiers
• Navigation systems
• Rear-seat entertainment systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required packaging formats. Confirm that the component meets all automotive qualification standards if intended for vehicle integration. Cross-reference pin configurations with existing designs to validate interface requirements before finalizing procurement orders.

Selection Notes

Select this component when system design requires combined analog conversion and programmable digital signal processing within a single package. Evaluate power budgets carefully, as headphone driver currents significantly impact total consumption. Ensure the host controller supports the necessary SPI or I2C protocols for configuration management during the development phase.

Part Context

This part belongs to the Analog Devices SigmaDSP family, designed to merge high-fidelity audio conversion with flexible digital processing capabilities. It targets applications demanding compact solutions for complex audio routing and enhancement tasks without requiring external DSP hardware.

Replacement Considerations

ADAU1461WBCPZ-R7

FAQ

What is the maximum sampling rate supported by the ADAU1461?

The device supports sampling rates ranging from 8 kHz up to 96 kHz.

How is the digital core power supplied?

The digital core voltage is generated internally by an on-board regulator derived from the AVDD supply, requiring only decoupling capacitors at the DVDDOUT pin.

Can the analog inputs be configured for differential operation?

Yes, the six analog input pins can be configured for either single-ended or fully differential PGA input modes.