SSM3302ACPZ-RL

Overview

The SSM3302ACPZ-RL is a stereo Class-D audio amplifier utilizing filterless Σ-Δ modulation. It delivers 2 × 10 W into 4 Ω and 2 × 8 W into 8 Ω at 12 V supply. The device operates on a single supply voltage ranging from 7 V to 18 V. Key electrical parameters include a typical shutdown current of 10 µA, an average switching frequency of 300 kHz, and a signal-to-noise ratio of 98 dB. It features a fixed input impedance of 40 kΩ and selectable closed-loop gain between 9 dB and 24 dB.

Feature Summary

• Filterless design using spread spectrum pulse density modulation to minimize radiated EMI emissions.
• Fully differential inputs providing high common-mode noise rejection with fixed input impedance.
• Integrated 5 V regulator and micropower shutdown mode for simplified system integration.
• Built-in pop-and-click suppression circuitry to eliminate audible transients during power cycling.

Applications

• Portable audio systems requiring reduced PCB space
• Embedded audio/video devices in automotive or industrial environments
• Subwoofer drivers in 2.1 audio configurations via mono mode

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and reel specifications. Ensure compatibility with the required operating temperature range and supply voltage constraints before finalizing procurement decisions.

Selection Notes

Select this component for applications prioritizing board space efficiency through filterless operation. Consider the fixed input impedance when designing input coupling networks to maintain consistent corner frequencies across different gain settings. Evaluate thermal management requirements based on the LFCSP package characteristics.

Part Context

This part belongs to the Analog Devices SSM3302 series of stereo audio amplifiers. It is housed in a 40-lead, 6 mm × 6 mm lead frame chip scale package (LFCSP). The device is designed for commercial temperature ranges and integrates protection features such as thermal shutdown and output short-circuit detection.

Replacement Considerations

Consult the manufacturer's official replacement guide for verified substitute part numbers. Do not assume functional equivalence with other Class-D amplifiers without verifying pinout compatibility and electrical specifications.