SSM2529ACBZ-R7

Overview

The SSM2529ACBZ-R7 is a digital input, mono Class-D audio power amplifier integrating a DAC, DSP, and sigma-delta modulator. It delivers 2.4 W into 4 Ω and 1.4 W into 8 Ω at 5 V supply with 1% THD. Operating voltage ranges from 2.5 V to 5.5 V for SPKVDD and 1.08 V to 1.98 V for DVDD. The device supports sample rates from 8 kHz to 96 kHz via I2S, PCM, or PDM interfaces. It features an integrated PLL, LDO regulator, seven-band equalizer, dynamic range compression, and ultralow idle current.

Feature Summary

• Integrates a digital-to-analog converter, low-power audio-specific digital signal processor, and sigma-delta Class-D modulator for direct digital audio processing.
• Includes a fully programmable seven-band equalizer and dynamic range compressor with noise gate, expander, compressor, and limiter functions.
• Features selectable ultralow EMI emission mode and pop-and-click suppression for high-quality audio output.
• Supports single-supply operation with an on-chip low dropout regulator eliminating the need for external digital core supply.

Applications

• Mobile phones
• Portable media players
• Laptop PCs
• Wireless speakers
• Navigation systems

Procurement Notes

Verify the specific ordering suffix ACBZ-R7 against the manufacturer's official datasheet to confirm package type and reel specifications. Ensure the component matches the Rev. 0 data sheet parameters. Confirm that the intended application environment falls within the specified industrial temperature range of −40°C to +85°C. Validate that the system power supply constraints align with the absolute maximum ratings provided in the documentation.

Selection Notes

Select this component for applications requiring a filterless mono amplifier with digital inputs to minimize system noise interference. The integrated DSP allows for customized audio tuning without external components. Consider the 16-ball WLCSP package for space-constrained designs. Verify compatibility with the required serial audio interface formats such as I2S or TDM before integration.

Part Context

The SSM2529 belongs to Analog Devices' series of digital input Class-D amplifiers designed for portable electronics. It utilizes a three-level sigma-delta modulation architecture to achieve high efficiency and low electromagnetic interference. The device is optimized for battery-powered systems where power consumption and audio fidelity are critical performance factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

How does the SSM2529 handle master clock generation?

The device includes a built-in phase-locked loop (PLL) that can provide the master clock. Alternatively, it can accept an external MCLK or use BCLK as the clock source in certain configurations.

What protection features are included in the SSM2529?

The amplifier includes short-circuit and thermal protection with programmable autorecovery, speaker temperature prediction, power-on reset, and UVLO voltage monitoring.