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LM4840LQ from NS,National Semiconductor

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LM4840LQ

Manufacturer: NS

Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux

Partnumber Manufacturer Quantity Availability
LM4840LQ NS 1000 In Stock

Description and Introduction

Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux The LM4840LQ 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 (THD) + Noise:** 0.2% (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** LQFP (Low-Profile Quad Flat Package)  

### **Descriptions:**  
The LM4840LQ is a stereo audio power amplifier designed for portable applications. It features a low-voltage operation, making it suitable for battery-powered devices. The amplifier includes thermal shutdown and click-and-pop suppression to enhance audio performance.  

### **Features:**  
- **Stereo Operation:** Supports two-channel audio output.  
- **Low Quiescent Current:** 4mA (typical) for extended battery life.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Click-and-Pop Suppression:** Reduces unwanted noise during power-up/down.  
- **Bridge-Tied Load (BTL) Output:** Eliminates the need for output coupling capacitors.  
- **Space-Saving Package:** LQFP for compact PCB designs.  

This information is sourced from the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux

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