SSM3582BCPZR7

Overview

The SSM3582BCPZR7 is a 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 delivers up to 2 × 14.67 W into 4 Ω loads at 12 V, or 2 × 14.4 W into 8 Ω loads at 16 V. The device features a proprietary filterless Σ-Δ modulation scheme, achieving a signal-to-noise ratio of 106.5 dB and total harmonic distortion plus noise of 0.004% at 5 W into 8 Ω. It supports I2S, left justified, and TDM interfaces with sample rates from 8 kHz to 192 kHz. The component is housed in a 40-lead, 6 mm × 6 mm LFCSP package.

Feature Summary

• Proprietary spread spectrum Sigma-Delta modulation enables direct speaker connection without output filters while minimizing radiated emissions.
• Integrated power management includes internal low-dropout regulators for analog and digital supplies, reducing external component count.
• Advanced protection mechanisms include thermal early warning, automatic gain control for brownout prevention, and pop/clickless on/off sequencing.

Applications

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

Procurement Notes

Verify the specific suffix BCPZR7 against the manufacturer's ordering guide to confirm tape-and-reel packaging and commercial temperature range specifications. Ensure compatibility with system voltage rails and digital interface protocols before integration. Cross-reference the datasheet revision to validate current performance parameters and pin configurations.

Selection Notes

Select this amplifier for applications requiring high efficiency and minimal external components. The integrated digital volume control and I2C interface allow for flexible system configuration. Consider the mono mode capability if higher single-channel power output is required for specific load impedances.

Part Context

This component belongs to the SSM3582 series of high-efficiency digital audio amplifiers. It utilizes a full-bridge power stage architecture optimized for low impedance loads. The device integrates a three-level modulator and comprehensive fault detection logic within a compact lead frame chip scale package.

Replacement Considerations

SSM3582ACPZ

FAQ

What is the minimum supported speaker load impedance?

The amplifier supports loads as low as 3 Ω/5 μH in stereo mode and 2 Ω/5 μH in mono mode.

How does the device handle power consumption during silence?

An automatic power-down function shuts down the amplifier and DAC when no signal is present, minimizing power consumption during digital silence.