AD1833ACSTZ

Overview

The AD1833ACSTZ is a six-channel, 24-bit digital-to-analog converter (DAC) from Analog Devices, housed in a 48-lead LQFP package. It supports sample rates up to 96 kHz on all channels and 192 kHz on two channels. The device features a dynamic range of 107 dB and THD+N of -94 dB in six-channel mode. It operates on a single 5 V analog supply and a separate 3.3 V tolerant digital interface supply. Key specifications include 108 dB interchannel isolation, on-chip volume control with 1024 linear steps, and software-controllable clickless mute.

Feature Summary

• Six-channel stereo DAC architecture with multibit sigma-delta modulators for reduced idle tones.
• Supports 16-, 20-, and 24-bit word lengths with flexible serial data interfaces (I2S, Left/Right Justified, DSP).
• On-chip programmable volume control per channel with 1024-step linear scale and clickless mute capability.
• Integrated digital de-emphasis filters compliant with Redbook standards for 32 kHz, 44.1 kHz, and 48 kHz sample rates.

Applications

• DVD Video and Audio Players
• Home Theater Systems
• Automotive Audio Systems
• Set-Top Boxes
• Digital Audio Effects Processors

Procurement Notes

Verify the component status as obsolete before procurement planning. Confirm that the AC suffix denotes the industrial temperature range (-40°C to +85°C) and the ST suffix indicates the 48-lead LQFP plastic package. Ensure compatibility with existing 5V analog and 3.3V digital power rails in the target design.

Selection Notes

Select this model for applications requiring six independent audio channels or three stereo pairs. The AC variant is suitable for industrial environments operating between -40°C and +85°C. Consider the AA variant if a different performance binning is required, though both share the same package and pinout. Verify MCLK requirements against available system clocks, as the internal clock scales based on the selected interpolation mode.

Part Context

The AD1833ACSTZ belongs to the AD1833A family of multichannel DACs. It is functionally similar to the AD1833AASTZ but may differ in specific performance binning criteria defined by Analog Devices. Both variants utilize the same 48-lead LQFP package and support identical interface protocols and sample rate configurations.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the AD1833A series is marked obsolete, alternative solutions require evaluating newer multi-channel DAC families from Analog Devices or other manufacturers with compatible pinouts and interface standards.

FAQ

What is the maximum sample rate supported by the AD1833ACSTZ?

The device supports 96 kHz sample rates on all six channels and 192 kHz sample rates on two channels.

How does the AD1833ACSTZ handle digital de-emphasis?

It includes built-in digital de-emphasis filters compliant with the Redbook standard (50 ms/15 ms curve) for sampling rates of 32 kHz, 44.1 kHz, and 48 kHz.

Can the AD1833ACSTZ operate with a 3.3V digital interface?

Yes, it features a separate digital supply pin (DVDD2) that allows the digital interface to be tolerant of 3.3V logic levels while the analog core operates at 5V.