SSM2315CBZ-REEL7

Overview

The SSM2315CBZ-REEL7 is a mono Class-D audio amplifier from Analog Devices, utilizing filterless Σ-Δ modulation. It operates on a single supply voltage ranging from 2.5 V to 5.5 V and delivers up to 3 W of continuous output power into a 3 Ω load at 5.0 V. The device features a default closed-loop gain of 6 dB, which can be adjusted via external resistors. It includes pop-and-click suppression, ultralow shutdown current (20 nA), and built-in thermal and short-circuit protection. The component is housed in a 9-ball, 1.5 mm × 1.5 mm WLCSP package.

Feature Summary

• Filterless design using spread-spectrum Σ-Δ modulation eliminates the need for external output filters and reduces EMI emissions.
• Integrated pop-and-click suppression circuitry minimizes audible transients during power-up and shutdown sequences.
• Fully differential input architecture provides high common-mode noise rejection and allows omission of input coupling capacitors under specific bias conditions.
• Micropower shutdown mode significantly reduces standby current consumption.

Applications

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

Procurement Notes

Verify the ordering suffix REEL7 corresponds to the standard reel packaging configuration as defined in the manufacturer's ordering guide. Confirm that the RoHS compliant status applies to the specific batch. Ensure the procurement documentation matches the exact part number SSM2315CBZ-REEL7 to avoid discrepancies with other packaging options like R2 or R21.

Selection Notes

Select this component for applications requiring high efficiency and minimal external component count due to its filterless operation. Consider the 6 dB default gain and verify if external resistors are needed for lower gain requirements. Evaluate the 9-ball WLCSP package constraints regarding PCB layout and thermal dissipation, especially when driving loads near the 3 W continuous power limit.

Part Context

The SSM2315 belongs to the Analog Devices SSM series of audio amplifiers. It is specifically engineered for mobile phone applications where board space and battery life are critical. The device represents a solution for maximizing performance while minimizing system cost through reduced external component requirements.

Replacement Considerations

Consult the official Analog Devices ordering guide for verified substitute part numbers within the same family. Cross-reference specifications such as package dimensions, pinout compatibility, and electrical parameters before substituting.