AD1839AASZ-REEL

Overview

The AD1839AASZ-REEL is a high-performance single-chip audio codec manufactured by Analog Devices Inc. It integrates three stereo digital-to-analog converters (DACs) and one stereo analog-to-digital converter (ADC). The device supports sample rates up to 96 kHz, with 192 kHz capability available on the first DAC channel. It features 24-bit resolution for both conversion paths. The ADC provides a typical signal-to-noise ratio of 105 dB and total harmonic distortion plus noise of -95 dB. The DACs achieve a typical signal-to-noise ratio of 108 dB and total harmonic distortion plus noise of -92 dB. The component operates from a 5 V supply and utilizes a flexible serial interface compatible with I2S, DSP, and left/right-justified formats.

Feature Summary

• Integrates three independent stereo DAC channels and one stereo ADC channel within a single package.
• Features multibit Sigma-Delta modulators with data-directed scrambling to minimize idle tones and jitter sensitivity.
• Includes on-chip volume controls per channel with 1024-step linear scale adjustment and software-controllable clickless mute functions.
• Supports multiple serial data formats including I2S, left-justified, right-justified, and DSP modes via an SPI-compatible control port.

Applications

• DVD video and audio players
• Home theater systems
• Automotive audio systems
• Audio/visual receivers
• Digital audio effects processors

Procurement Notes

Verify the specific ordering suffix REEL against the manufacturer's current documentation to confirm tape-and-reel packaging configuration. Confirm that the A-grade industrial temperature rating (-40°C to +85°C) aligns with the target application environment requirements before finalizing procurement.

Selection Notes

Select this component when a system requires multiple independent stereo outputs alongside a stereo input within a single integrated circuit. Ensure the host processor supports the required serial interface protocols and can provide the necessary master clock frequencies. Verify that the 5 V analog supply voltage matches the system power architecture.

Part Context

The AD1839A belongs to the AD1839 series of high-performance audio codecs from Analog Devices. This family is designed for professional and consumer audio applications requiring high fidelity and low distortion. The AD1839A specifically offers a higher channel count compared to stereo-only variants in the same product line.

Replacement Considerations

The AD1839AASZ is a non-reel version of the same component. Direct functional substitutes are not explicitly listed in the provided datasheet; consult the manufacturer's official replacement guide for qualified alternatives.