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LM4883SQ from NSC,National Semiconductor

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LM4883SQ

Manufacturer: NSC

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function

Partnumber Manufacturer Quantity Availability
LM4883SQ NSC 52 In Stock

Description and Introduction

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function The LM4883SQ is a dual audio power amplifier manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Output Power:** 1.1W per channel into 8Ω at 5V (THD+N = 1%)  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical at 1kHz, 1W output)  
- **Shutdown Current:** 0.01µA (typical)  
- **Quiescent Current:** 4mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 14-Pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
- The LM4883SQ is a dual bridge-connected audio power amplifier designed for portable applications.  
- It features an internal depop circuitry to reduce turn-on/off transients.  
- The amplifier is optimized for low-voltage operation, making it suitable for battery-powered devices.  

### **Features:**  
- **Dual Bridge-Tied Load (BTL) Configuration** – Eliminates the need for external coupling capacitors.  
- **Low Quiescent Current** – Enhances battery life in portable devices.  
- **Thermal Shutdown Protection** – Prevents damage from excessive heat.  
- **Improved PSRR (Power Supply Rejection Ratio)** – Reduces noise from the power supply.  
- **Space-Saving LLP Package** – Suitable for compact PCB designs.  

This information is strictly based on the manufacturer's datasheet for the LM4883SQ.

Application Scenarios & Design Considerations

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function
Partnumber Manufacturer Quantity Availability
LM4883SQ NS 1696 In Stock

Description and Introduction

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function The LM4883SQ is a dual audio power amplifier manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Output Power:** 1.1W per channel into 8Ω at 5V (THD+N = 10%)  
- **Quiescent Current:** 4mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 14-Pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
- The LM4883SQ is designed for portable audio applications such as mobile phones, PDAs, and portable media players.  
- It features a low-power shutdown mode for power-saving operation.  
- The amplifier includes internal thermal shutdown protection.  

### **Features:**  
- Dual-channel audio amplifier  
- Low quiescent current  
- Improved click-and-pop suppression  
- No output coupling capacitors required  
- Unity-gain stable  
- Short-circuit and thermal protection  

Would you like additional details on any specific aspect?

Application Scenarios & Design Considerations

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function

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