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LM4874MHX from NS,National Semiconductor

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LM4874MHX

Manufacturer: NS

2.1W Differential Input, BTL Output Stereo Audio Amplifier with Selectable Gain and Shutdown

Partnumber Manufacturer Quantity Availability
LM4874MHX NS 1780 In Stock

Description and Introduction

2.1W Differential Input, BTL Output Stereo Audio Amplifier with Selectable Gain and Shutdown The LM4874MHX is a mono 3W audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 3W into 4Ω at 5V  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Quiescent Current:** 4mA (typical)  
- **Shutdown Current:** 0.6μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1W into 4Ω  
- **PSRR (Power Supply Rejection Ratio):** 60dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (MHX)  

**Descriptions and Features:**  
- Designed for battery-powered applications  
- Improved pop-and-click suppression  
- Thermal shutdown protection  
- Unity-gain stable  
- No external compensation required  
- Low shutdown current for power savings  
- Internal gain set to 6dB  

This amplifier is commonly used in portable audio devices such as mobile phones, PDAs, and other small electronics.

Application Scenarios & Design Considerations

2.1W Differential Input, BTL Output Stereo Audio Amplifier with Selectable Gain and Shutdown

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