SSM2302CPZ-REEL7

Overview

The SSM2302CPZ-REEL7 is a filterless, high-efficiency Class-D stereo audio amplifier manufactured by Analog Devices Inc. It operates from a single supply voltage ranging from 2.5 V to 5.0 V and delivers up to 1.4 W of continuous output power into an 8 Ω load at 5.0 V with less than 1% THD+N. The device features a signal-to-noise ratio better than 98 dB and achieves 85% efficiency under standard test conditions. It utilizes Σ-Δ modulation to minimize electromagnetic interference (EMI) emissions. Key electrical specifications include a typical shutdown current of 20 nA, a differential input impedance of 150 kΩ or 210 kΩ depending on the shutdown state, and a fixed switching frequency of 1.8 MHz.

Feature Summary

• Filterless Class-D architecture utilizing Sigma-Delta modulation for reduced EMI emissions
• Integrated pop-and-click suppression circuitry for noiseless activation and deactivation
• Built-in thermal shutdown and output short-circuit protection mechanisms
• Configurable gain settings via digital control pin or external resistors

Applications

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

Procurement Notes

Verify component authenticity through authorized channels as this part is marked obsolete. Confirm package integrity upon receipt, specifically checking for damage to the 16-lead LFCSP exposed pad. Ensure storage conditions comply with moisture sensitivity level requirements prior to soldering. Cross-reference ordering information with official manufacturer documentation to validate revision status.

Selection Notes

Select this component for applications requiring minimal external filtering components to conserve board space. Consider the 2.5 V to 5.0 V supply range compatibility with portable battery-powered systems. Evaluate the 1.4 W output capability against specific speaker impedance requirements. Assess the need for differential versus single-ended input configurations based on source signal characteristics.

Part Context

The SSM2302 belongs to the SSM23xx series of audio amplifiers designed for mobile phone applications. It is a fully integrated stereo amplifier that minimizes external component count. The CPZ suffix indicates a lead-free version housed in a 16-lead, 3 mm × 3 mm Lead Frame Chip Scale Package (LFCSP). The REEL7 suffix denotes tape and reel packaging for automated assembly processes.

Replacement Considerations

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