WM8731SEDS/V

Product Overview

• Category: Audio Codec
• Use: The WM8731SEDS/V is a high-performance stereo audio codec designed for portable audio applications.
• Characteristics: It offers a wide range of features including stereo ADC and DAC, microphone preamplifier, headphone amplifier, and digital audio interface. The device operates from a single 3.3V power supply and is available in a small package, making it suitable for space-constrained applications.
• Package: The WM8731SEDS/V comes in a small surface mount package.
• Essence: This audio codec provides high-quality audio conversion and processing capabilities for portable audio devices.
• Packaging/Quantity: The WM8731SEDS/V is typically sold in reels or trays, with a quantity of 2500 units per reel.

Specifications

• ADC Resolution: 24-bit
• DAC Resolution: 24-bit
• Sampling Rate: Up to 96 kHz
• Digital Interface: I2S, Left-Justified, Right-Justified
• Microphone Preamplifier Gain: Programmable up to 40 dB
• Headphone Amplifier Output Power: 30 mW into 16 ohms
• Power Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The WM8731SEDS/V has a total of 28 pins. Here is the detailed pin configuration:

1. VDDIO: Digital IO Power Supply
2. DVDD: Digital Core Power Supply
3. AGND: Analog Ground
4. AVDD: Analog Power Supply
5. LOUT1N: Negative Left Line Output
6. LOUT1P: Positive Left Line Output
7. LINN: Negative Left Line Input
8. LINP: Positive Left Line Input
9. LOUT2N: Negative Left Headphone Output
10. LOUT2P: Positive Left Headphone Output
11. ROUT1N: Negative Right Line Output
12. ROUT1P: Positive Right Line Output
13. RINN: Negative Right Line Input
14. RINP: Positive Right Line Input
15. ROUT2N: Negative Right Headphone Output
16. ROUT2P: Positive Right Headphone Output
17. MICBIAS: Microphone Bias Voltage
18. MICINN: Negative Microphone Input
19. MICINP: Positive Microphone Input
20. BCLK: Bit Clock
21. LRCLK: Left/Right Clock
22. SDA: I2C Serial Data
23. SCL: I2C Serial Clock
24. GND: Ground
25. NC: No Connection
26. NC: No Connection
27. NC: No Connection
28. NC: No Connection

Functional Features

• High-quality stereo audio conversion with 24-bit resolution.
• Flexible digital audio interface supporting multiple formats (I2S, Left-Justified, Right-Justified).
• Programmable microphone preamplifier gain for optimal recording performance.
• Integrated headphone amplifier with sufficient output power for portable applications.
• Low power consumption for extended battery life.

Advantages and Disadvantages

Advantages: - High-performance audio codec with excellent sound quality. - Compact package suitable for space-constrained applications. - Wide range of features for versatile audio processing.

Disadvantages: - Limited quantity per reel may not be suitable for high-volume production.

Working Principles

The WM8731SEDS/V operates by converting analog audio signals into digital format using the ADC, and vice versa using the DAC. The digital audio data is processed and can be transmitted through the digital interface to other devices. The microphone preamplifier amplifies the microphone input signal, while the headphone amplifier drives the headphones with sufficient power.

Detailed Application Field Plans

The WM8731SEDS/V is commonly used in various portable audio applications, including: - MP3 players - Portable gaming devices - Voice recorders - Digital audio players - Mobile phones

Alternative Models

Here are some alternative models that offer similar functionality to the WM8731SEDS/V: - WM8731LSEDS/V - WM8731SES/RV - WM8731SEDS/VR

These alternative models may have slight differences in specifications or pin configuration, but they serve as suitable replacements for the WM8731SEDS/V in different application scenarios.

In conclusion, the WM8731SEDS/V is a high-performance stereo audio codec designed for portable audio applications. It offers excellent sound quality, versatile features, and compact packaging, making it an ideal choice for various portable audio devices.