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LMC1992N from NS,National Semiconductor

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LMC1992N

Manufacturer: NS

Digitally-Controlled Stereo Tone and Volume Circuits

Partnumber Manufacturer Quantity Availability
LMC1992N NS 428 In Stock

Description and Introduction

Digitally-Controlled Stereo Tone and Volume Circuits The LMC1992N is a digital volume control and tone control IC manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Supply Voltage Range:** 4.5V to 12V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Digital Control Interface:** Serial (I²C compatible)  
- **Channels:** 2 (stereo)  
- **Volume Control Range:** 0dB to -78dB (1dB steps)  
- **Bass Control Range:** ±12dB (2dB steps)  
- **Treble Control Range:** ±12dB (2dB steps)  
- **Balance Control:** Adjustable between left and right channels  
- **THD (Total Harmonic Distortion):** Typically 0.01%  
- **Package:** 20-pin PDIP (Plastic Dual In-line Package)  

### **Descriptions:**  
The LMC1992N is a digitally controlled audio processor designed for volume, bass, treble, and balance adjustments in stereo audio systems. It uses a serial interface (I²C) for control, making it suitable for microprocessor-based applications.  

### **Features:**  
- **Low Distortion:** Ensures high-quality audio performance.  
- **Wide Supply Voltage Range:** Compatible with various system designs.  
- **Non-Volatile Memory:** Retains settings when powered off.  
- **Mute Function:** Allows muting of audio output.  
- **Soft Transition:** Smooth volume and tone adjustments to prevent audible clicks.  

This IC is commonly used in car audio systems, home stereos, and other audio processing applications.

Application Scenarios & Design Considerations

Digitally-Controlled Stereo Tone and Volume Circuits

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