ADAU1966WBSTZ

Digital To Analog Converters Overview

The ADAU1966WBSTZ is a 16-channel, high-performance differential output DAC from Analog Devices Inc. It utilizes a multibit sigma-delta architecture to support sample rates from 32 kHz to 192 kHz with 24-bit resolution. Key electrical specifications include an A-weighted dynamic range of 118 dB and THD+N of -98 dB at full scale. The device operates on separate 5 V analog (AVDD), 2.5 V digital (DVDD), and 3.3 V or 5 V I/O (IOVDD) supplies. It features integrated PLL clock generation, software-controllable volume adjustment, and a built-in temperature sensor with ±3°C accuracy. The component is housed in an 80-lead LQFP package and is qualified for automotive applications.

Digital To Analog Converters Feature Summary

• 16 independent differential DAC channels with 118 dB A-weighted dynamic range
• Supports 24-bit audio data at sample rates up to 192 kHz
• Integrated linear regulator driver generating 2.5 V digital supply from 5 V analog input
• Low EMI design using continuous-time architectures and on-chip PLL clock derivation

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet revision to ensure compatibility with required voltage levels and packaging options. Confirm that the 80-lead LQFP thermal characteristics meet the system's heat dissipation requirements under maximum operating conditions.

Digital To Analog Converters Selection Notes

Select this component when a high channel count with differential outputs is required. Ensure the system can provide distinct 5 V analog and 2.5 V digital power rails. Consider the low propagation delay mode if minimal latency is critical at 192 kHz, noting the trade-off in stop-band attenuation.

Digital To Analog Converters Part Context

This part belongs to the ADAU1966 family of multi-channel DACs. The WBSTZ suffix typically denotes the automotive-grade qualification and the specific 80-lead LQFP package variant. It serves as a central audio conversion component in complex digital audio signal chains requiring multiple isolated output channels.

Digital To Analog Converters Replacement Considerations

No public confirmed substitute part numbers are listed in the provided documentation. Cross-referencing should be performed based on pin compatibility, channel count, and electrical specifications with other high-channel-count DACs from Analog Devices or competitors.

Digital To Analog Converters FAQ

How does the ADAU1966 minimize electromagnetic interference (EMI)?

It employs a low EMI design featuring continuous-time DAC architectures and an on-chip PLL to derive the master clock from LRCLK, eliminating the need for external high-frequency clocks.

What is the function of the VSUPPLY and VSENSE pins?

VSUPPLY accepts the 5 V input supply, while VSENSE provides the regulated 2.5 V output for the digital core. These pins interface with an internal linear regulator driver circuit.

Can the propagation delay be reduced during operation?

Yes, in 192 kHz sample rate mode, the propagation delay can be significantly reduced by enabling the low propagation delay option via the DAC Control 0 register.