SSM2356CBZ-RL7

Overview

The SSM2356CBZ-RL7 is a fully integrated, high-efficiency stereo Class-D audio amplifier from Analog Devices. It operates on a single supply voltage ranging from 2.5 V to 5.5 V and delivers up to 2 W per channel into a 4 Ω load or 1.4 W per channel into an 8 Ω load at 5.0 V. The device utilizes sigma-delta modulation for filterless operation, achieving a signal-to-noise ratio of 103 dB and a total harmonic distortion plus noise of 0.004%. It features a typical shutdown current of 20 nA, user-selectable gain settings of 6 dB or 18 dB, and built-in thermal and short-circuit protection.

Feature Summary

• Filterless stereo Class-D architecture using sigma-delta modulation eliminates the need for output filters.
• Integrated pop-and-click suppression minimizes audible transients during power-up and power-down cycles.
• User-selectable gain configuration allows switching between 6 dB and 18 dB without changing input impedance.
• Ultralow EMI emission mode significantly reduces radiated emissions, particularly above 100 MHz.

Applications

• Mobile phones
• MP3 players
• Portable gaming devices
• Portable electronics

Procurement Notes

Verify component authenticity through authorized channels as this part is marked obsolete by the manufacturer. Confirm RoHS compliance status via official documentation before integration. Ensure design compatibility with the 16-ball WLCSP package dimensions and thermal requirements. Review datasheet specifications for absolute maximum ratings to prevent operational damage.

Selection Notes

Select this component for designs requiring high efficiency and minimal external component count in portable applications. Verify that the required output power aligns with the 4 Ω or 8 Ω load capabilities at the target supply voltage. Consider the ultralow EMI mode if the design must meet strict FCC Class B emission standards. Ensure the input signal common-mode voltage range matches the device's operating specifications.

Part Context

The SSM2356CBZ-RL7 belongs to the SSM2356 series of stereo audio amplifiers manufactured by Analog Devices. It is packaged in a 16-ball, 1.66 mm × 1.66 mm Wafer Level Chip Scale Package (WLCSP). The device is designed to maximize performance in mobile phone applications while conserving board space through its filterless operation.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.