ADAU1962AWBSTZ

Digital To Analog Converters Overview

The ADAU1962AWBSTZ is a high-performance, single-chip digital-to-analog converter (DAC) featuring 12 channels with differential or single-ended voltage outputs. Utilizing Analog Devices' patented multibit sigma-delta architecture, it supports sample rates from 32 kHz to 192 kHz at 24-bit resolution. The device operates on separate 2.5 V digital and 3.3 V analog supplies, achieving a total quiescent power of 249 mW. It includes an integrated linear regulator driver, a phase-locked loop for clock generation, and a built-in temperature sensor. Key performance metrics include a dynamic range of up to 114 dB (A-weighted, differential) and -97 dB THD+N.

Digital To Analog Converters Feature Summary

• 12-channel DAC with differential or single-ended outputs using multibit sigma-delta architecture
• High audio fidelity: 114 dB dynamic range (differential) and -97 dB THD+N at 25°C
• Integrated PLL allows master clock derivation from LRCLK, eliminating external high-frequency clocks
• Low EMI design with 2.5 V digital supply and optimized continuous-time output stages
• Supports I2S, TDM, left/right justified formats with software-controllable volume and mute

Digital To Analog Converters Applications

• Automotive audio systems
• Home theater systems
• Digital audio effects processors

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'WBSTZ' against the manufacturer's ordering guide to confirm package type and tape/reel specifications. Ensure compatibility with automotive qualification standards if required by the application environment. Cross-reference the datasheet revision to confirm current electrical parameters.

Digital To Analog Converters Selection Notes

Select this component for applications requiring multiple synchronized audio channels with low distortion. The integrated PLL simplifies clocking architectures by deriving internal clocks from the frame clock. Verify that the system can accommodate the 2.5 V digital and 3.3 V analog supply rails and the 80-lead LQFP thermal requirements.

Digital To Analog Converters Part Context

This part belongs to the ADAU1962A series of high-performance audio DACs. It is designed for multi-channel audio processing where low electromagnetic interference and high dynamic range are critical. The device integrates digital filtering, volume control, and a temperature sensor, reducing the need for external support components in complex audio systems.

Digital To Analog Converters Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as other variants of the ADAU1962A, ensuring identical pinout and register compatibility. Verify that any substitute maintains the 12-channel configuration and similar electrical performance metrics like dynamic range and THD+N.

Digital To Analog Converters FAQ

How does the ADAU1962A reduce electromagnetic interference (EMI)?

The device employs a low EMI design featuring a 2.5 V digital supply to reduce waveform amplitude, an on-chip PLL to eliminate external high-frequency master clocks, and continuous-time output architectures to minimize emissions.

What is the maximum sample rate supported by the ADAU1962A?

The ADAU1962A supports sample rates up to 192 kHz. It also offers a low propagation delay mode specifically for 192 kHz operation.

Can the ADAU1962A operate without an external master clock?

Yes, the internal phase-locked loop (PLL) can derive the internal master clock from an external left-right frame clock (LRCLK), allowing operation without a separate high-frequency master clock source.