Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates The WM8731CLSEFL is a high-performance stereo CODEC manufactured by Wolfson Microelectronics. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Wolfson Microelectronics
- **Type:** Stereo Audio CODEC
- **Interface:** I2S, Left Justified, Right Justified, DSP
- **Resolution:** 16/20/24/32-bit
- **Sampling Rate:** 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), 1.8V to 3.6V (Digital)
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 28-pin SSOP
### **Descriptions:**
The WM8731CLSEFL is a low-power, high-quality stereo CODEC designed for portable audio applications. It integrates a stereo DAC and ADC with support for multiple digital audio formats. The device features an on-chip headphone driver and programmable digital filters for enhanced audio performance.
### **Features:**
- **Stereo DAC and ADC** with high-fidelity audio performance
- **Programmable Sample Rate** (8 kHz to 96 kHz)
- **On-Chip Headphone Amplifier** with volume control
- **Low Power Consumption** (suitable for battery-powered devices)
- **Digital Audio Interface** (I2S, Left/Right Justified, DSP)
- **Software Control** via 2-wire (I2C) or 3-wire (SPI) interface
- **Integrated Digital Filters** for noise shaping and interpolation
- **Automatic Level Control (ALC)** for microphone input
- **Bias Voltage Generation** for electret microphones
This information is based on the manufacturer's datasheet and technical documentation.
