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WM8731 from WM

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WM8731

Manufacturer: WM

Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates

Partnumber Manufacturer Quantity Availability
WM8731 WM 200 In Stock

Description and Introduction

Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates The WM8731 is a low-power stereo CODEC (Coder-Decoder) manufactured by Wolfson Microelectronics.  

### **Specifications:**  
- **Audio Resolution:** 16 to 32-bit  
- **Sampling Rates:** 8 kHz to 96 kHz  
- **Signal-to-Noise Ratio (SNR):** 100 dB (DAC), 95 dB (ADC)  
- **Total Harmonic Distortion + Noise (THD+N):** -85 dB (DAC), -80 dB (ADC)  
- **Power Supply:** 2.7V to 3.6V (analog), 1.7V to 3.6V (digital)  
- **Power Consumption:** 24 mW (typical)  
- **Interface:** I²C or SPI (configurable)  
- **Package:** 28-pin SSOP  

### **Descriptions:**  
The WM8731 is designed for portable audio applications, providing high-quality stereo audio ADC (Analog-to-Digital Converter) and DAC (Digital-to-Analog Converter) functionality. It supports multiple digital audio formats and includes features like programmable input/output gain, digital volume control, and de-emphasis filters.  

### **Features:**  
- **Stereo ADC & DAC** with 24-bit processing  
- **On-Chip Headphone Driver** (40 mW into 32Ω)  
- **Programmable Input/Output Gain**  
- **Digital Volume Control** with mute  
- **Low-Power Standby Mode**  
- **Software Control** via I²C or SPI  
- **Supports Multiple Audio Formats** (I²S, Left-Justified, Right-Justified, DSP)  
- **On-Chip PLL** for flexible clocking  

The WM8731 is commonly used in MP3 players, portable media devices, and other consumer audio applications.

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