SSM3582BCPZRL

Overview

The SSM3582BCPZRL 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 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 THD + N below 1%. Key electrical specifications include 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. It supports sample rates from 8 kHz to 192 kHz with 24-bit resolution.

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 addressable configuration of up to 16 devices on a single bus via selectable pin slots.
• Advanced power management includes automatic shutdown during digital silence and pop/click-free turn-on sequences.
• Comprehensive protection mechanisms feature thermal early warning, overcurrent limiting, and undervoltage fault detection.

Applications

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

Procurement Notes

Verify the specific suffix BCPZRL against the manufacturer's official ordering guide to confirm package type and reel quantity specifications. Ensure compatibility with system voltage requirements ranging from 4.5 V to 16 V. Confirm that the 40-lead LFCSP footprint matches the PCB layout design. Validate that the commercial temperature range of -40°C to +85°C meets the operational environment standards.

Selection Notes

Select this component for designs requiring high-fidelity audio performance with minimal external components. The digital input architecture reduces susceptibility to noise in complex digital environments. Consider the mono mode capability if higher single-channel power output is required for specific driver configurations. Evaluate the low EMI mode option if strict electromagnetic interference regulations apply to the final product assembly.

Part Context

The SSM3582 belongs to Analog Devices' portfolio of high-performance audio amplifiers designed for portable and computing applications. It replaces traditional analog input amplifiers by accepting PCM audio data directly. The device integrates internal low-dropout regulators for analog and digital supplies, simplifying the bill of materials compared to discrete solutions or older amplifier generations.

Replacement Considerations

SSM3582ACPZ

FAQ

Does the SSM3582 require external output filters?

No, the device uses a proprietary filterless Sigma-Delta modulation scheme that allows direct connection to the speaker.

How many devices can be addressed on a single I2C bus?

Up to 16 individual addresses can be defined using the two ADDRx pins, supporting up to 32 audio playback channels in TDM mode.