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LM4549VH from NSC,National Semiconductor

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LM4549VH

Manufacturer: NSC

AC 97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound

Partnumber Manufacturer Quantity Availability
LM4549VH NSC 10 In Stock

Description and Introduction

AC 97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound The LM4549VH is a high-performance audio codec manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NSC)  
- **Type:** Audio Codec (ADC/DAC)  
- **Interface:** AC ’97 2.1 compliant  
- **Resolution:** 18-bit ADC and DAC  
- **Sampling Rate:** Up to 48 kHz  
- **Dynamic Range (DAC):** 90 dB  
- **Dynamic Range (ADC):** 85 dB  
- **Power Supply:** 3.3V or 5V operation  
- **Package:** 48-pin TQFP (Thin Quad Flat Package)  

### **Descriptions:**  
The LM4549VH is a high-quality audio codec designed for PC multimedia applications, providing stereo ADC and DAC functionality. It complies with the AC ’97 2.1 specification, supporting full-duplex audio processing.  

### **Features:**  
- **AC ’97 2.1 Compliant**  
- **18-bit Stereo ADC and DAC**  
- **Supports Multiple Sampling Rates (up to 48 kHz)**  
- **Low Power Consumption**  
- **On-Chip Analog Mixing and Gain Control**  
- **3D Stereo Enhancement**  
- **Integrated PLL for Clock Generation**  
- **48-pin TQFP Package**  

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

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