WM8903
Ultra-low power stereo audio CODECs in compact QFN packages
Manufacturer： ['cirrus-logic', 'wolfson-microelectronics']
series introduction
# WM8903 Product Series Introduction
## 1. Overview
The WM8903 product series is a cutting - edge line of audio codec solutions developed by a leading semiconductor company. These audio codecs are designed to offer high - performance audio processing capabilities in a compact and power - efficient package, making them ideal for a wide range of consumer and portable electronic devices.
## 2. Key Features
### High - Quality Audio Conversion
- **ADC and DAC Performance**: The WM8903 series is equipped with high - resolution analog - to - digital converters (ADCs) and digital - to - analog converters (DACs). The ADCs can accurately capture audio signals with a high signal - to - noise ratio (SNR), typically achieving values up to [X] dB. This ensures that even the subtlest audio details are faithfully recorded. The DACs, on the other hand, can reproduce audio with excellent fidelity, delivering rich and clear sound to the output devices.
- **Multi - Channel Support**: It supports multiple audio channels, which is crucial for applications such as surround sound systems or multi - microphone setups. For example, it can handle stereo input and output configurations, as well as more complex multi - channel arrangements, providing flexibility for different audio requirements.
### Low Power Consumption
- **Power - Saving Modes**: In today's portable device market, power efficiency is of utmost importance. The WM8903 series incorporates advanced power - saving modes. When the device is in standby or idle state, the codec can automatically enter a low - power mode, significantly reducing power consumption. This not only extends the battery life of portable devices but also helps in reducing heat generation, improving the overall reliability of the system.
- **Dynamic Power Management**: It also features dynamic power management capabilities. The codec can adjust its power consumption based on the actual audio processing load. For instance, during periods of low - volume or simple audio processing, it consumes less power, while still being able to handle high - intensity audio tasks when required.
### Integrated Audio Processing Functions
- **Equalization and Filtering**: The WM8903 series comes with built - in equalization and filtering functions. Users can adjust the audio frequency response according to their preferences or the characteristics of the audio content. For example, they can boost the bass for music with heavy beats or enhance the treble for clearer vocals. The filtering capabilities can also be used to remove unwanted noise or interference from the audio signal.
- **Volume Control and Mixing**: Precise volume control is available for both input and output channels. Additionally, the codec supports audio mixing, allowing multiple audio sources to be combined into a single output. This is useful in applications such as audio conferencing systems or multimedia players where different audio streams need to be mixed together.
### Small Form Factor
- **Compact Package Design**: The WM8903 series is packaged in a small and space - efficient form factor. This makes it suitable for integration into small - sized devices such as smartphones, tablets, earbuds, and other portable audio devices. The compact design also simplifies the PCB layout, reducing the overall size and cost of the end - product.
## 3. Applications
### Mobile Devices
- **Smartphones and Tablets**: In smartphones and tablets, the WM8903 series provides high - quality audio for voice calls, music playback, video viewing, and gaming. Its low power consumption is especially beneficial for extending the battery life of these devices, while the high - fidelity audio conversion ensures an immersive audio experience for the users.
- **Wearable Devices**: For wearable devices such as smartwatches and earbuds, the small form factor and low power requirements of the WM8903 series are essential. It enables clear voice communication and high - quality music playback in a compact and energy - efficient package.
###
Images for reference
Image Preview
Image Preview
Image Preview