WM8731SEDS/RV

Product Overview

• Category: Audio Codec
• Use: The WM8731SEDS/RV is a high-performance stereo audio codec designed for portable audio applications such as smartphones, tablets, and portable media players.
• Characteristics: This audio codec offers high-quality audio playback and recording capabilities with low power consumption. It supports various audio formats and features advanced signal processing algorithms.
• Package: The WM8731SEDS/RV comes in a small surface-mount package, making it suitable for compact electronic devices.
• Essence: The essence of this product lies in its ability to provide high-fidelity audio playback and recording functionality in portable devices.
• Packaging/Quantity: The WM8731SEDS/RV is typically sold in reels containing a specified quantity of units.

Specifications

• Audio Formats: Supports various audio formats including PCM, I2S, and TDM.
• Sampling Rates: Supports sampling rates from 8 kHz to 96 kHz.
• Resolution: Offers up to 24-bit resolution for both playback and recording.
• Signal-to-Noise Ratio (SNR): Provides a high SNR of up to 100 dB.
• Power Supply: Operates on a single 3.3V power supply.
• Interface: Features an I2C interface for control and configuration.

Detailed Pin Configuration

The WM8731SEDS/RV has the following pin configuration:

1. VDD - Power supply voltage
2. GND - Ground
3. SDIN - Serial data input
4. SDOUT - Serial data output
5. SCLK - Serial clock input/output
6. LRCLK - Left/right channel clock input/output
7. BCLK - Bit clock input/output
8. RESET - Reset pin
9. AGND - Analog ground
10. AVDD - Analog power supply voltage
11. MICBIAS - Microphone bias voltage
12. LINEINL - Left line input
13. LINEINR - Right line input
14. LOUT1 - Left channel output
15. ROUT1 - Right channel output
16. LOUT2 - Second left channel output
17. ROUT2 - Second right channel output

Functional Features

• Audio Playback: The WM8731SEDS/RV supports high-quality audio playback with low distortion and noise.
• Audio Recording: It enables clear and accurate audio recording with its high-resolution capabilities.
• Signal Processing: This codec incorporates advanced signal processing algorithms for enhanced audio performance.
• Digital Interface: The I2C interface allows for easy control and configuration of the codec.
• Low Power Consumption: The WM8731SEDS/RV is designed to operate efficiently with low power consumption, making it suitable for portable devices.

Advantages and Disadvantages

Advantages: - High-quality audio playback and recording - Wide range of supported audio formats - Advanced signal processing algorithms - Low power consumption

Disadvantages: - Limited quantity of alternative models available - May require additional external components for certain applications

Working Principles

The WM8731SEDS/RV operates by receiving digital audio data through its serial data input (SDIN) pin. It then processes the audio data using its internal signal processing algorithms and converts it into analog signals. These analog signals can be output through the various output pins or recorded through the line inputs or microphone input.

Detailed Application Field Plans

The WM8731SEDS/RV is widely used in portable audio devices such as smartphones, tablets, and portable media players. Its high-quality audio capabilities make it suitable for applications where clear and accurate audio playback and recording are essential. Some specific application fields include:

1. Mobile Phones: The codec can be integrated into mobile phones to provide high-fidelity audio playback and recording for multimedia applications.
2. Tablets: It can enhance the audio experience of tablets by delivering superior sound quality for movies, music, and games.
3. Portable Media Players: The WM8731SEDS/RV can be used in portable media players to ensure high-quality audio output for a wide range of media formats.

Detailed and Complete Alternative Models

While the WM8731SEDS/RV is a popular choice for audio codecs in portable devices, there are alternative models available from other manufacturers. Some notable alternatives include:

• MAX98357A from Maxim Integrated
• CS42L42 from Cirrus Logic
• AK4556 from AKM Semiconductor

These alternative models offer similar functionality and performance characteristics, providing options for designers and developers in choosing the most suitable audio codec for their specific applications.

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