The PAMS58xx series is a family of fully integrated digital input Class D amplifiers designed for high performance audio applications. Delivering up to 41 W (stereo) or 82 W (mono), this series provides exceptional sound quality, high efficiency, and design scalability—all while following a uniform PCB layout for easy integration.
Equipped with advanced digital signal processing (DSP), the PAMS58xx series enables precise and flexible audio tuning without the need for external components. Built in DSP features include:
- Equalization (EQ)
- Dynamic Range Control (DRC)
- Automatic Gain Limiter (AGL)
- Dynamic Range Boost (DRB)
To further enhance efficiency, the integrated Class H power control dynamically adjusts the supply voltage based on audio demand, reducing heat generation and extending battery life. With ultra low THD+N (0.02%) and output noise below 37 µV RMS, the PAMS58xx series delivers clean, distortion free, high fidelity audio.
The family offers over 90% efficiency, integrated tuning capabilities, and a common pinout across all five variants (PAMS5803/04/25/26/27). This allows engineers to scale power and features through firmware—simplifying development, accelerating design cycles, and reducing overall BOM cost.
| Features | Benefits |
| • Class H Power Control (16-step) | • Reduced heat, extended battery life to 50%+ |
| • Integrated DSP (EQ, DRC, AGL, DRB) | • Eliminates need for external DSP, saves cost and BOM space |
| • Uniform PCB Layout Across Series | • Scalable design with pin-to-pin compatible devices |
| • Ultra-low THD+N (0.02%) | • Delivers clean, high-fidelity audio |
| Product Details | |
|---|---|
| Part Numbers | Description |
| PAMS5803 | Stereo 24W, mono 40W, PVDD max 17V and Rdson 110mΩ, digital input audio amp with basic DSP and class H support |
| PAMS5804 | Stereo 33W, mono 66W, PVDD max 26.4V and Rdson 135mΩ, digital input audio amp with basic DSP and class H support |
| PAMS5825 | Stereo 33W, mono 51W, PVDD max 21V and Rdson 75mΩ, digital input audio amp with rich DSP and class H support |
| PAMS5826 | Stereo 40W, mono 80W, PVDD max 26.4V and Rdson 95mΩ, digital input audio amp with rich DSP and class H support |
| PAMS5827 | Stereo 41W, mono 82W, PVDD max 26.4V and Rdson 75mΩ, digital input audio amp with advanced DSP and class H support |
