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LM4543VHX from NS,National Semiconductor

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LM4543VHX

Manufacturer: NS

AC 97 Codec with Stereo with National 3D Sound

Partnumber Manufacturer Quantity Availability
LM4543VHX NS 179 In Stock

Description and Introduction

AC 97 Codec with Stereo with National 3D Sound The LM4543VHX is a high-performance audio codec manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Descriptions:**  
The LM4543VHX is a single-chip audio codec designed for high-quality audio applications. It integrates analog-to-digital (ADC) and digital-to-analog (DAC) converters, along with digital signal processing (DSP) features. It is commonly used in PCs, multimedia systems, and other audio processing applications.

### **Features:**  
- **High-Quality Audio Conversion:**  
  - 18-bit stereo ADC and DAC  
  - Supports sample rates up to 48 kHz  
- **Digital Signal Processing (DSP):**  
  - On-chip digital filtering  
  - Programmable gain and attenuation  
- **Interface Options:**  
  - AC'97 2.1 compliant interface  
  - Supports master/slave modes  
- **Low Power Consumption:**  
  - Operates at 3.3V supply voltage  
  - Power-down modes for energy efficiency  
- **Integrated Analog Features:**  
  - On-chip microphone preamplifier  
  - Stereo line inputs/outputs  
  - Mono microphone input  

### **Specifications:**  
- **Package:** 48-pin TQFP (Thin Quad Flat Pack)  
- **Operating Voltage:** 3.3V  
- **Signal-to-Noise Ratio (SNR):**  
  - DAC: >90 dB  
  - ADC: >85 dB  
- **Total Harmonic Distortion + Noise (THD+N):**  
  - DAC: <0.02%  
  - ADC: <0.05%  
- **Operating Temperature Range:** -40°C to +85°C  

This information is based solely on the manufacturer's datasheet and technical documentation.

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