AD1839AS

Overview

The AD1839AS is a high-performance single-chip codec featuring three stereo DACs and one stereo ADC. It supports up to 96 kHz sample rates, with 192 kHz available on one DAC. The device utilizes multibit Σ-Δ modulators for reduced idle tones and noise floor. Key specifications include 24-bit resolution, −95 dB THD+N for ADCs, and −92 dB THD+N for DACs. It operates from a 5 V supply with a 3.3 V tolerant digital interface.

Feature Summary

• Multibit Sigma-Delta Modulators
• On-Chip Volume Controls
• Flexible Serial Data Port
• Software Controllable Clickless Mutes

Applications

• DVD Video and Audio Players
• Home Theater Systems
• Automotive Audio Systems
• Audio/Visual Receivers
• Digital Audio Effects Processors

Procurement Notes

Verify the specific suffix AS against official Analog Devices documentation to confirm temperature range and package details. Ensure compatibility with system requirements before procurement. Check for obsolescence status as product lifecycles may change.

Selection Notes

Select based on required sample rate support up to 96 kHz or 192 kHz for specific channels. Consider the need for independent volume control per channel and the flexibility of serial data port formats including I2S and DSP modes. Verify power supply constraints and interface voltage levels.

Part Context

The AD1839A series belongs to Analog Devices' high-performance audio codec family. It integrates multiple DAC and ADC channels into a single chip, simplifying design for complex audio systems. The AS variant typically denotes specific industrial temperature range and packaging options within this product line.

Replacement Considerations

EVAL-FDA-1RZ-8 is listed as a similar evaluation board substitute for related components. Direct IC replacements should be verified through official Analog Devices resources for pin-to-pin compatibility and electrical equivalence.

FAQ

What is the maximum sample rate supported by the AD1839AS?

The AD1839AS supports up to 96 kHz sample rates for all channels, with 192 kHz sample rate available on one specific DAC.

How many DAC and ADC channels does the AD1839AS contain?

The device features three stereo DACs (six channels) and one stereo ADC (two channels).

What type of modulation technology is used in the AD1839AS?

It uses multibit Sigma-Delta modulators with perfect differential linearity restoration to reduce idle tones and noise floor.