ADAU1590ACPZ

Overview

The ADAU1590ACPZ is a two-channel, bridge-tied load (BTL) switching audio power amplifier with an integrated Σ-Δ modulator. It accepts analog input signals and generates a switching output to drive speakers directly. The device operates from supply voltages ranging from 9 V to 15 V for the power stage, while the analog modulator and digital logic operate from a 3.3 V supply. Key performance metrics include 0.005% THD+N, 101 dB dynamic range, and PSRR greater than 55 dB.

Feature Summary

• Integrated stereo modulator and power stage
• EMI-optimized modulator
• On/off-mute pop-noise suppression
• Short-circuit protection
• Overtemperature protection

Applications

• Flat panel televisions
• PC audio systems
• Mini-components

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct channels. Confirm package integrity and pin alignment against LFCSP-48 specifications. Ensure compliance with RoHS directives prior to integration. Validate datasheet revision status to confirm current operational parameters.

Selection Notes

Evaluate thermal dissipation requirements based on PCB layout and ambient temperature conditions. Verify compatibility of the 3.3 V digital interface with system microcontrollers. Assess power supply stability within the 9 V to 15 V operating range. Consider PGA gain settings for optimal signal-to-noise ratio in specific application contexts.

Part Context

This component belongs to the ADAU1590 series of Class-D audio amplifiers. It features a 2-channel BTL architecture designed for high-fidelity audio reproduction. The integrated Σ-Δ modulator simplifies external circuitry by reducing the need for additional filtering components.

Replacement Considerations

The datasheet identifies this part as obsolete. No official substitute part numbers are documented in the provided source material.