ADAU1401AWBSTZ

Overview

The ADAU1401AWBSTZ is a SigmaDSP audio processor featuring a 28-/56-bit, 50 MIPS core. It integrates two stereo ADCs and four stereo DACs with 24-bit resolution. The device supports sampling rates up to 192 kHz and includes an auxiliary ADC with a 4-input mux. Digital interfaces include I2C and SPI for control, alongside flexible serial data ports supporting I2S, left-justified, right-justified, and TDM modes. It operates on 3.3 V analog/PLL supplies and 1.8 V digital supply, housed in a 48-lead LQFP package.

Feature Summary

• Integrated 28-/56-bit DSP with 50 MIPS processing capability
• Two ADCs (SNR 100 dB) and four DACs (SNR 104 dB)
• Supports self-boot from serial EEPROM via dedicated pins
• Programmable PLL for master clock generation from crystal or external input

Applications

• Multimedia speaker systems
• Automotive head units
• Digital televisions
• Studio monitors
• Musical instrument effects processors

Procurement Notes

Verify the specific suffix 'WBSTZ' against the manufacturer's ordering guide to confirm package type and temperature range. Confirm RoHS compliance status through official documentation. Ensure compatibility with required I2C/SPI voltage levels (IOVDD at 3.3 V). Check for automotive qualification requirements if applicable to the target system.

Selection Notes

Select this component when a complete single-chip audio solution with high-dynamic-range conversion is required. The internal 1.8 V regulator simplifies power design by accepting a 3.3 V input. Use SigmaStudio software for graphical configuration of signal processing blocks such as biquad filters and dynamics processors. Ensure sufficient external EEPROM capacity for self-boot program storage.

Part Context

This part belongs to the ADAU1401A family of SigmaDSP devices. It serves as a standalone audio subsystem combining processing and conversion. The 'W' indicates the plastic LQFP package, while 'B' typically denotes the industrial temperature range (-40°C to +85°C), though verification against the datasheet ordering table is recommended.

Replacement Considerations

The ADAU1401YSTZ is a previous version of this component. Verify pinout compatibility and check for any differences in electrical specifications or feature sets before substitution.