SSM3582BCPZ

Overview

The SSM3582BCPZ 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 V supply and utilizes a proprietary filterless Σ-Δ modulation scheme. The device delivers 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. It features a 106.5 dB signal-to-noise ratio, 0.004% THD+N at 5 W into 8 Ω, and 93.8% efficiency into an 8 Ω load. Packaged in a 40-lead, 6 mm × 6 mm LFCSP with a thermal pad, it supports I2C control and multiple PCM formats.

Feature Summary

• Proprietary spread spectrum Sigma-Delta modulation enables direct speaker connection without external LC filters while minimizing radiated emissions.
• Integrated I2C control interface allows for up to 16 pin-selectable addresses and standalone operation without host microcontroller intervention.
• Automatic power-down function shuts down the amplifier and DAC during digital silence to minimize power consumption.
• Built-in protection mechanisms include short-circuit, undervoltage, thermal shutdown, and programmable gain limiting.

Applications

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

Procurement Notes

Verify the specific suffix BCPZ against the manufacturer's ordering guide to confirm package type and tape/reel specifications. Ensure the design accommodates the required PVDD supply range of 4.5 V to 16 V and appropriate decoupling for AVDD and DVDD rails. Confirm thermal management requirements for the 40-lead LFCSP package under maximum load conditions.

Selection Notes

Select this component for designs requiring high output power from a single supply with minimal external components. It is suitable for applications needing low EMI through optional ultralow emission modes. Consider the 40-lead LFCSP footprint and thermal pad requirements for PCB layout. Verify compatibility with digital audio interfaces such as I2S, left justified, or TDM protocols.

Part Context

The SSM3582 belongs to Analog Devices' line of digital input Class-D audio amplifiers designed for mobile and portable applications. It shares architectural similarities with the SSM3515 but offers stereo channel capability and higher power output. The device integrates internal low-dropout regulators for analog and digital supplies to simplify system power architecture.

Replacement Considerations

SSM3582ACPZ