AD1835AASZ-REEL

Overview

The AD1835AASZ-REEL is a high-performance single-chip audio codec manufactured by Analog Devices Inc. It features four stereo digital-to-analog converters (DACs) and one stereo analog-to-digital converter (ADC). The device supports sample rates up to 96 kHz for both ADC and DAC channels, with the first DAC channel capable of operating at 192 kHz. It utilizes 24-bit resolution and multibit Sigma-Delta modulators. The codec operates on a 5 V supply with a 3.3 V tolerant digital interface. Key performance metrics include an ADC dynamic range of 105 dB and a DAC dynamic range of 108 dB. It is housed in a 52-lead MQFP plastic package.

Feature Summary

• Features four independent stereo DAC pairs and one stereo ADC pair with fully differential analog outputs.
• Includes on-chip volume controls per channel with 1024-step linear scale and software-controllable clickless mute functions.
• Supports flexible serial data interfaces including I2S, left-justified, right-justified, and DSP modes.
• Integrates TDM interface mode for glueless connection to SHARC DSPs.

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated by the 'Z' suffix. Ensure proper ESD handling procedures are followed during storage and assembly due to electrostatic sensitivity. Check for lead-free soldering requirements compatible with the MQFP package.

Selection Notes

Select this component when designing systems requiring multiple independent stereo output channels from a single codec. Consider the 3.3 V digital interface compatibility if interfacing with lower voltage logic controllers. Evaluate power consumption specifications against system thermal constraints, noting the separate analog and digital supply requirements for optimal noise performance.

Part Context

This part belongs to the AD1835A series of audio codecs from Analog Devices. It is specifically the reel-packaged version of the industrial temperature grade variant. The series is designed for high-fidelity audio processing applications requiring low distortion and high dynamic range.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD1835AASZ. Verify functional equivalence regarding sample rate capabilities and interface protocols before substitution.