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LM4830M from NS,National Semiconductor

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LM4830M

Manufacturer: NS

Two-Way Audio Amplification System with Volume Control

Partnumber Manufacturer Quantity Availability
LM4830M NS 4236 In Stock

Description and Introduction

Two-Way Audio Amplification System with Volume Control The LM4830M 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 4Ω at 5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1W output  
- **Shutdown Current:** 0.1µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin SOIC  

**Descriptions:**  
- The LM4830M is designed for portable audio applications such as mobile phones, PDAs, and portable media players.  
- It features a low-power shutdown mode to conserve battery life.  
- Includes thermal shutdown and short-circuit protection.  

**Features:**  
- Dual-channel audio amplifier  
- Bridge-tied load (BTL) or single-ended operation  
- No output coupling capacitors required  
- Pop-and-click suppression circuitry  
- Low quiescent current  
- Surface-mount package for compact designs  

This information is based on the manufacturer's datasheet.

Partnumber Manufacturer Quantity Availability
LM4830M NSC 3840 In Stock

Description and Introduction

Two-Way Audio Amplification System with Volume Control The LM4830M is a manufacturer by National Semiconductor (NSC). 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 + Noise (THD+N):** 0.2% (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin SOIC (M)  

### **Descriptions:**  
The LM4830M is a dual audio power amplifier designed for low-voltage applications. It features a bridge-tied load (BTL) configuration, eliminating the need for output coupling capacitors. It is suitable for portable devices such as mobile phones, PDAs, and portable media players.  

### **Features:**  
- **Dual BTL Outputs:** No external coupling capacitors required.  
- **Low Quiescent Current:** 4mA (typical).  
- **Shutdown Mode:** Reduces power consumption when inactive.  
- **Improved PSRR:** Minimizes power supply noise.  
- **Thermal Protection:** Prevents damage from overheating.  
- **Surface-Mount Package:** Compact 8-pin SOIC for space-constrained designs.  

This information is sourced from the manufacturer's datasheet.

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