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LM4859SPX from NS,National Semiconductor

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LM4859SPX

Manufacturer: NS

Stereo 1.2W Audio Sub-system with 3D Enhancement

Partnumber Manufacturer Quantity Availability
LM4859SPX NS 405 In Stock

Description and Introduction

Stereo 1.2W Audio Sub-system with 3D Enhancement The LM4859SPX is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (per channel into 8Ω at 5V)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
- The LM4859SPX is a stereo audio power amplifier designed for portable applications.  
- It features a low-power shutdown mode to extend battery life.  
- Includes thermal shutdown protection to prevent overheating.  

### **Features:**  
- **Stereo Operation:** Supports two-channel audio output.  
- **Low Quiescent Current:** 4mA (typical) for improved efficiency.  
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from power supply fluctuations.  
- **No External Coupling Capacitors Required:** Simplifies circuit design.  
- **Click-and-Pop Suppression:** Minimizes audible noise during power-up/down.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Stereo 1.2W Audio Sub-system with 3D Enhancement

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