Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound The LM4832N is a manufacturer by NSC (National Semiconductor Corporation).  

**Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W per channel into 8Ω at 5V (typical)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω  
- **Shutdown Current:** 0.1µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin PDIP (Plastic Dual In-Line Package)  

**Descriptions:**  
The LM4832N is a dual audio power amplifier designed for portable electronic devices. It features a low-voltage operation, making it suitable for battery-powered applications.  

**Features:**  
- Dual bridge-tied load (BTL) audio power amplifier  
- Low quiescent current  
- Thermal shutdown protection  
- Click-and-pop suppression circuitry  
- No output coupling capacitors required  
- Surface-mount and through-hole package options  

This information is based on the manufacturer's datasheet.

Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound