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LM1973MX from NSC,National Semiconductor

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LM1973MX

Manufacturer: NSC

Micro-Pot 3-Channel 76 dB Audio Attenuator with Mute

Partnumber Manufacturer Quantity Availability
LM1973MX NSC 82 In Stock

Description and Introduction

Micro-Pot 3-Channel 76 dB Audio Attenuator with Mute The LM1973MX is a digitally controlled audio attenuator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Type:** Digitally Controlled Audio Attenuator  
- **Attenuation Range:** 0 dB to -102 dB (1 dB steps)  
- **Channels:** 2 (Stereo)  
- **THD (Total Harmonic Distortion):** <0.01%  
- **Signal-to-Noise Ratio (SNR):** >110 dB  
- **Supply Voltage:** ±5V to ±15V  
- **Package:** 20-Pin SOIC (LM1973MX)  
- **Interface:** Serial (SPI-compatible)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM1973MX is designed for high-performance audio applications requiring precise digital volume control. It provides low distortion and high signal-to-noise ratio, making it suitable for professional audio systems, mixers, and digital audio equipment.  

### **Features:**  
- **Precision Attenuation:** 1 dB steps from 0 dB to -102 dB  
- **Low Distortion:** Ensures high-fidelity audio output  
- **Wide Supply Voltage Range:** Supports ±5V to ±15V operation  
- **SPI-Compatible Serial Control:** Allows easy integration with microcontrollers  
- **Mute Function:** Software-controllable mute capability  
- **High SNR:** Maintains audio clarity even at low levels  
- **Robust Packaging:** 20-pin SOIC for reliable performance  

This information is based on the manufacturer's datasheet and specifications for the LM1973MX by NSC.

Application Scenarios & Design Considerations

Micro-Pot 3-Channel 76 dB Audio Attenuator with Mute

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