SSM2519ACBZ-RL

Overview

The SSM2519ACBZ-RL is a digital input Class-D audio power amplifier integrating a DAC and sigma-delta modulator. It delivers 2.31 W into 4 Ω and 1.35 W into 8 Ω at 5 V supply with 1% THD+N. The device operates on a 2.5 V to 5.5 V PVDD and 1.5 V to 3.6 V VDD, supporting sample rates from 8 kHz to 48 kHz. It features an SNR of 98 dB (A-weighted), PSRR of 80 dB at 217 Hz, and 9 mW idle power at 1.8 V/3.6 V. Packaged in a 12-ball WLCSP.

Feature Summary

• Filterless digital input architecture combining DAC and sigma-delta modulation for low EMI and high efficiency.
• Supports standalone operation or I2C control via programmable serial interface formats including I2S, TDM, and PCM.
• Includes pop and click suppression, short-circuit protection, thermal shutdown with autorecovery, and smart power-down modes.

Applications

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

Procurement Notes

Verify the specific suffix ACBZ-RL against the manufacturer's current ordering guide to confirm package type and reel specifications. Ensure compatibility with system voltage requirements (PVDD 2.5 V–5.5 V, VDD 1.5 V–3.6 V) and digital interface standards before integration. Confirm availability status as distribution channels may vary.

Selection Notes

Select this component for applications requiring a fully digital audio interface to minimize noise susceptibility from GSM interference or other digital signals. It is suitable for power-sensitive portable devices where low quiescent current and high efficiency are critical. Consider the 12-ball WLCSP package constraints for PCB layout and thermal management.

Part Context

The SSM2519 is part of Analog Devices' digital input Class-D amplifier family. It utilizes a three-level sigma-delta modulator designed to provide low EMI interference and high audio efficiency. The device is specified over the industrial temperature range of −40°C to +85°C and includes built-in protections for robust operation in mobile environments.

Replacement Considerations

SSM2517CBZ-RL

FAQ

Can the SSM2519 operate without an external bit clock (BCLK)?

Yes, the BCLK signal is not required. The device can internally generate the appropriate BCLK signal if the BCLK pin is tied to VDD or GND to select the rate.

What is the function of the SD pin?

The SD pin determines the operational mode. Connecting it to VDD enables standalone mode, while tying it through a 20 kΩ resistor to VDD enables I2C control mode. Pulling it low activates shutdown mode.