ADAU1961WBCPZ-R7

Overview

The ADAU1961WBCPZ-R7 is a stereo audio codec featuring 24-bit analog-to-digital and digital-to-analog converters. It supports sampling rates from 8 kHz to 96 kHz with an integrated PLL for clock generation. The device operates on a 3.3 V analog supply (AVDD range: 2.97 V to 3.65 V) and includes six configurable analog input pins, a stereo digital microphone interface, and multiple output drivers. Key performance metrics include a signal-to-noise ratio of 98 dB for both ADC and DAC channels. It utilizes I2C and SPI control interfaces and is housed in a 32-lead LFCSP package rated for -40°C to +105°C.

Feature Summary

• Integrated programmable gain amplifiers and flexible mixers for routing up to six analog inputs or bypassing the ADCs.
• Built-in automatic level control and noise gate functions for optimized recording signal paths.
• Supports capless headphone configurations and provides individual fine level controls on all analog outputs.
• Includes a software-controllable clickless mute feature to suppress pop-and-click artifacts during state changes.

Applications

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

Procurement Notes

Verify the specific suffix R7 against official documentation to confirm reel packaging requirements. Ensure the design accommodates the AEC-Q100 qualification standards required for automotive deployment. Confirm that the 32-lead LFCSP thermal pad soldering meets the manufacturer's PCB layout guidelines for optimal heat dissipation.

Selection Notes

Select this component when a low-power stereo codec with high dynamic range is required for automotive environments. The integrated PLL simplifies clock tree design by accepting main clocks between 8 MHz and 27 MHz. Verify that the available analog input count and output driver types match the system's transducer requirements before finalizing the bill of materials.

Part Context

This part belongs to the Analog Devices ADAU1961 series of low-power audio codecs. It is specifically designed for automotive applications requiring robust analog front-end capabilities. The WBCPZ designation indicates the lead-free 32-lead LFCSP package variant compliant with automotive reliability standards.

Replacement Considerations

Consult the official ordering guide for direct cross-references. No alternative part numbers are confirmed in the provided source material.

FAQ

What is the maximum operating temperature for the ADAU1961?

The device is qualified for an operating temperature range of -40°C to +105°C.

Does the ADAU1961 support digital microphone inputs?

Yes, it includes a dedicated stereo digital microphone input interface alongside its analog inputs.

How is the internal digital supply voltage generated?

The device features an on-board regulator that generates the internal digital supply voltage from the external AVDD pin.