SSM3582ACPZ

Overview

The SSM3582ACPZ is a fully integrated, high-efficiency digital input stereo Class-D audio amplifier manufactured by Analog Devices Inc. It operates from a single 4.5 V to 16.5 V supply and utilizes a proprietary filterless Σ-Δ modulation scheme. The device delivers up to 2× 14.67 W into 4 Ω loads at 12 V and 2× 14.4 W into 8 Ω loads at 16 V with less than 1% THD+N. Key performance metrics include a 106.5 dB signal-to-noise ratio and 93.8% efficiency into an 8 Ω load. It supports sample rates from 8 kHz to 192 kHz via I2S, left justified, or TDM interfaces.

Feature Summary

• Proprietary spread spectrum Sigma-Delta modulation enables direct speaker connection without output filters while minimizing radiated emissions.
• Integrated I2C control interface allows for address configuration, volume adjustment, and status monitoring across up to 16 devices on a single bus.
• Pop and clickless power-on and power-off sequences ensure silent transitions during activation and deactivation.
• Automatic power-down functionality reduces quiescent current consumption when no digital audio signal is detected.

Applications

• Mobile computing
• All-in-one computers
• Portable electronics
• Wireless speakers
• Televisions

Procurement Notes

Verify the specific suffix (ACPZ) corresponds to the lead frame chip scale package variant. Confirm that the ordering part number matches the required thermal pad specifications for proper heat dissipation. Ensure compatibility with the intended single-supply voltage range of 4.5 V to 16.5 V before integration.

Selection Notes

Select this component for designs requiring high power density and minimal external bill of materials. It is suitable for applications needing low total harmonic distortion and high signal-to-noise ratios. Consider the 40-lead LFCSP package constraints for PCB layout and thermal management requirements in compact enclosures.

Part Context

This device belongs to the SSM3582A series of digital input audio amplifiers. It is designed as a complete solution for stereo audio playback systems. The amplifier integrates internal low-dropout regulators for analog and digital supplies to simplify power architecture.

Replacement Considerations

SSM3582ACPZ-RL