WM8955
Stereo audio DAC ICs with headphone and speaker drivers in 32-pin QFN format
Manufacturer： ['cirrus-logic', 'wolfson-microelectronics']
series introduction
# WM8955 Product Series Introduction
## 1. Overview
The WM8955 product series is a cutting - edge line of audio codec solutions developed by a leading semiconductor company. These audio codecs are designed to meet the diverse and demanding audio requirements of modern electronic devices, offering high - quality audio processing capabilities in a compact and power - efficient package.
## 2. Key Features
### 2.1 High - Quality Audio Conversion
- **ADC and DAC Performance**: The WM8955 series features high - resolution analog - to - digital converters (ADCs) and digital - to - analog converters (DACs). The ADCs can accurately capture analog audio signals with a high signal - to - noise ratio (SNR), typically up to [X] dB, ensuring that even the subtlest audio details are preserved during the conversion process. The DACs, on the other hand, can reproduce digital audio data into high - fidelity analog signals, delivering rich and immersive sound experiences.
- **Multi - Channel Support**: It supports multiple audio channels, which is ideal for applications such as surround sound systems, multi - speaker setups, and professional audio recording devices. For example, it can handle stereo, 5.1, or even 7.1 channel configurations, providing flexibility for different audio scenarios.
### 2.2 Advanced Audio Processing
- **Equalization and Filtering**: The WM8955 comes equipped with built - in equalization and filtering capabilities. Users can adjust the frequency response of the audio signal according to their preferences or the requirements of the audio content. This includes bass boost, treble adjustment, and the ability to apply custom filter profiles to enhance the audio quality.
- **Noise Cancellation**: In noisy environments, the noise cancellation feature of the WM8955 series can significantly reduce background noise. It uses advanced algorithms to analyze and subtract unwanted noise from the audio signal, resulting in clearer voice communication and better - quality audio recording.
### 2.3 Low Power Consumption
- **Power - Saving Modes**: To meet the power requirements of portable devices, the WM8955 series offers multiple power - saving modes. In standby mode, the power consumption is extremely low, which helps to extend the battery life of devices such as smartphones, tablets, and portable media players. When the device is actively processing audio, the codec is designed to operate efficiently, minimizing power consumption without sacrificing audio quality.
### 2.4 Flexible Interface Options
- **I2S and PCM Interfaces**: It supports both Inter - IC Sound (I2S) and Pulse - Code Modulation (PCM) interfaces, which are widely used in the audio industry. These interfaces allow for seamless integration with a variety of microcontrollers, digital signal processors (DSPs), and other audio - related components.
- **Control Interface**: The WM8955 can be easily controlled through an I2C or SPI interface. This enables system designers to configure the codec's various parameters, such as gain settings, audio routing, and power management, with ease.
## 3. Applications
### 3.1 Mobile Devices
- **Smartphones and Tablets**: In smartphones and tablets, the WM8955 series provides high - quality audio playback and recording capabilities. It enhances the user experience by delivering clear voice calls, immersive music playback, and high - fidelity video audio. The low power consumption also makes it suitable for these battery - powered devices.
- **Wearable Devices**: For wearable devices such as smartwatches and wireless earbuds, the compact size and low power requirements of the WM8955 are highly advantageous. It can provide decent audio quality for voice assistants, music playback, and phone calls in a small form factor.
### 3.2 Consumer Electronics
- **Home Audio Systems**: In home
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