SSM2317CBZ-REEL

Overview

The SSM2317CBZ-REEL is a fully integrated, single-channel Class-D audio amplifier designed for mobile phone applications. It delivers 3 W into a 3 Ω load and 1.4 W into an 8 Ω load at a 5.0 V supply voltage with a 93 dB signal-to-noise ratio. Operating from a single 2.5 V to 5.5 V supply, it features a default fixed gain of 18 dB or user-adjustable settings via external resistors. The device utilizes spread-spectrum pulse density modulation to minimize EMI emissions and includes automatic level control (ALC) to prevent clipping.

Feature Summary

• Filterless design utilizing Sigma-Delta modulation to reduce external component count and board space.
• Automatic Level Control (ALC) improves dynamic range and prevents speaker clipping.
• Micropower shutdown mode with ultralow current consumption for extended battery life.
• Integrated pop-and-click suppression circuitry minimizes audible noise during power transitions.

Applications

• Mobile phones
• MP3 players
• Portable gaming devices
• Educational toys

Procurement Notes

Verify the specific ordering suffix REEL against manufacturer documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with the required input common-mode voltage range and confirm that the 9-ball WLCSP package dimensions align with the target PCB footprint constraints before finalizing procurement.

Selection Notes

Select this component when minimizing external filter components is critical for compact portable designs. It is suitable for systems requiring high efficiency and low electromagnetic interference through spread-spectrum modulation. Verify that the application supports the specified single-supply voltage range and consider the built-in thermal protection for robust operation in enclosed spaces.

Part Context

This part belongs to the Analog Devices SSM2317 series of high-efficiency mono Class-D audio amplifiers. It is specifically engineered to maximize performance in mobile phone applications while maintaining a minimal external component count. The series emphasizes low EMI radiated emissions and high audio fidelity within a small form factor.

Replacement Considerations

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