PAM8009DHR

Overview

The PAM8009DHR is a 3W stereo Class-D audio power amplifier with an integrated stereo Single-Ended (SE) headphone driver. It operates on a supply voltage range of 2.8V to 5.5V and delivers up to 90% efficiency. The device features 64-step DC volume control spanning +20dB to -60dB, providing precise system audio management. Key electrical specifications include an SNR of 83dB and a PSRR of -61dB. It is housed in a 24-pin SOP package.

Feature Summary

• Integrated Auto Gain Control (AGC) for speaker protection and output power maximization
• Advanced DC volume control with 64 steps over a wide attenuation range
• Comprehensive protection including thermal shutdown, over-current protection, and under-voltage lockout

Applications

• LCD monitors and TVs
• Projectors
• All-in-one computers
• Game machines
• DVD players

Procurement Notes

Verify the specific ordering suffix DHR corresponds to the SOP-24 packaging configuration before procurement. Confirm that the required reel quantity matches the standard factory pack size of 1000 units. Ensure compatibility with the specified 12mm tape width and 13-inch reel dimensions for automated assembly lines. Cross-reference the marking code format XXXYWWLL for traceability requirements during the purchasing process.

Selection Notes

Select this component when a combined solution for BTL stereo speakers and SE headphones is required within a single IC. The built-in AGC function simplifies design by protecting speakers without external circuitry. The extensive DC volume control range reduces the need for additional analog potentiometers or digital-to-analog converters in the signal path. Verify that the operating voltage range aligns with the target system's power supply rails.

Part Context

This part belongs to the PAM8009 family of highly integrated audio amplifiers from Diodes Incorporated. It complements other variants like the PAM8009KGR, which utilizes a U-QFN4040-20 package instead of the SOP-24 form factor found in the DHR version. Both share identical electrical performance characteristics but differ in physical footprint and mounting style for PCB layout flexibility.

Replacement Considerations

The PAM8009KGR serves as a functional equivalent offering identical electrical specifications but utilizes a U-QFN4040-20 package. Designers must account for the difference in pinout geometry and thermal dissipation characteristics when substituting between the SOP-24 and QFN packages.