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LM4863MTX from NSC,National Semiconductor

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LM4863MTX

Manufacturer: NSC

Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Partnumber Manufacturer Quantity Availability
LM4863MTX NSC 2229 In Stock

Description and Introduction

Dual 2.2W Audio Amplifier Plus Stereo Headphone Function The LM4863MTX is a 1.1W audio power amplifier manufactured by National Semiconductor (NSC).  

**Specifications:**  
- **Output Power:** 1.1W into 8Ω at 5V  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Quiescent Current:** 2.5mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin SOIC (LM4863MTX)  

**Descriptions:**  
- The LM4863MTX is a mono bridged audio power amplifier designed for low-voltage applications.  
- It features a shutdown mode for power-saving operation.  
- The device is optimized for driving speakers in portable electronics.  

**Features:**  
- Bridge-tied load (BTL) configuration  
- No output coupling capacitors required  
- Low shutdown current  
- Improved PSRR for noise reduction  
- Unity-gain stable  
- Internal thermal shutdown protection  

(Source: National Semiconductor datasheet)

Application Scenarios & Design Considerations

Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

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