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LM4923LQ/NOPB from NS,National Semiconductor

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LM4923LQ/NOPB

Manufacturer: NS

1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select 8-WQFN -40 to 85

Partnumber Manufacturer Quantity Availability
LM4923LQ/NOPB,LM4923LQNOPB NS 282 In Stock

Description and Introduction

1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select 8-WQFN -40 to 85 The LM4923LQ/NOPB is a stereo audio power amplifier manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Type:** Stereo Audio Power Amplifier  
- **Output Power:** 1.1W per channel into 8Ω (at 5V supply)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.1% (typical)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Shutdown Current:** 0.01µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
The LM4923LQ/NOPB is a high-performance, low-power stereo audio amplifier designed for portable applications. It features an integrated depop circuit to minimize turn-on/off transients and provides excellent audio quality with low distortion.  

### **Features:**  
- **Low Quiescent Current:** 5.5mA (typical)  
- **Improved PSRR:** Reduces noise from power supply variations  
- **Click-and-Pop Suppression:** Minimizes audible noise during power-up/down  
- **Thermal Shutdown Protection:** Prevents damage from overheating  
- **Short-Circuit Protection:** Safeguards against output shorts  
- **Space-Saving LLP Package:** Suitable for compact designs  

This amplifier is commonly used in mobile phones, portable media players, and other battery-powered audio devices.

Application Scenarios & Design Considerations

1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select 8-WQFN -40 to 85

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