ADAU1761BCPZ-R7

Overview

The ADAU1761BCPZ-R7 is a stereo audio codec featuring an integrated SigmaDSP core. It provides 24-bit resolution for both analog-to-digital and digital-to-analog conversion, supporting sampling rates from 8 kHz to 96 kHz. The device operates on analog supplies ranging from 1.8 V to 3.65 V and digital I/O supplies from 1.63 V to 3.65 V. Key performance metrics include a signal-to-noise ratio exceeding 98 dB and low power consumption of 7 mW during record or playback at 48 kHz with a 1.8 V supply. It includes six configurable analog inputs, flexible mixers, and output drivers for line and headphone applications.

Feature Summary

• Integrated SigmaDSP processor enabling programmable equalization, compression, and limiting via SigmaStudio software.
• Flexible analog input architecture supporting single-ended, pseudo-differential, and full differential configurations with automatic level control.
• Multiple high-power analog output drivers including differential line outputs and capless headphone amplifiers.
• Supports I2C and SPI control interfaces alongside stereo and TDM digital audio serial data ports.

Applications

• Smartphones and multimedia phones
• Digital still cameras and digital video cameras
• Portable media players and portable audio players
• Phone accessories products

Procurement Notes

Verify the specific suffix R-7 indicates tape and reel packaging when sourcing components. Confirm that the operating voltage requirements align with the system design, as the analog supply supports up to 3.65 V while digital I/O ranges from 1.63 V to 3.65 V. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS technology used in the LFCSP package.

Selection Notes

Select this component for designs requiring high-fidelity audio processing with significant DSP capabilities within a compact footprint. The integrated PLL allows clock generation from external frequencies between 8 MHz and 27 MHz, simplifying clock tree design. Consider the power management modes if battery life is critical, as the device offers extreme power saving states suitable for standby applications.

Part Context

This part belongs to the Analog Devices SigmaDSP family, which combines audio codecs with programmable digital signal processors. The ADAU1761 specifically targets consumer electronics where space is limited but audio quality must remain high. It serves as a complete audio solution by integrating ADCs, DACs, and processing cores into a single 32-lead LFCSP package.

Replacement Considerations

Check for availability of the non-reel version ADAU1761BCPZ if tray packaging is required. Verify compatibility with existing firmware or SigmaStudio projects if migrating from previous revisions of the ADAU1761 series.