PAM8303CBSCC

Overview

The PAM8303CBSC is a mono Class-D audio power amplifier manufactured by Diodes Incorporated, housed in an MSOP-8 package. It delivers 3W output at 10% THD with a 4Ω load at 5V supply. The device operates on a single supply voltage ranging from 2.8V to 5.5V and features ultra-low EMI performance, exceeding FCC Class-B standards by 20dB at 300MHz. It includes differential inputs for high PSRR, shutdown current below 1µA, short-circuit protection, and thermal shutdown.

Feature Summary

• Filterless architecture eliminates the need for external output filters, reducing PCB area and system costs.
• Ultra-low EMI design provides superior noise immunity compared to standard regulatory limits.
• High efficiency up to 90% optimizes battery life in portable applications.
• Integrated protection mechanisms include short-circuit protection and thermal shutdown.

Applications

• Cellular phones and smart phones
• MP4/MP3 media players
• GPS navigation systems
• Digital photo frames
• Portable game machines

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distributors. Confirm the MSOP-8 package marking matches official datasheet specifications. Ensure compliance with RoHS and halogen-free requirements as defined by the manufacturer. Check for End-of-Life status or recommended alternatives if sourcing for new designs.

Selection Notes

Select this component for space-constrained portable devices requiring high-fidelity audio without bulky output filters. The differential input interface is suitable for noise-sensitive environments. Ensure the application supply voltage remains within the 2.8V to 5.5V range for optimal performance and reliability.

Part Context

The PAM8303C series is designed for mobile consumer electronics where size and battery efficiency are critical. The CBSC suffix specifically denotes the MSOP-8 surface-mount package variant. This family of amplifiers utilizes advanced CMOS technology to achieve high power output in minimal footprint configurations.

Replacement Considerations

The datasheet explicitly recommends using the PAM8304 for new designs, as the PAM8303C is not recommended for new design. Verify pin compatibility and electrical specifications when transitioning to alternative models.

FAQ

Does the PAM8303CBSC require an external LC filter?

No, the PAM8303CBSC features a filterless architecture that allows direct driving of speakers without external low-pass filters.

What is the maximum operating temperature for the PAM8303CBSC?

The maximum ambient operating temperature is +85°C, while the junction temperature range extends up to +125°C.