Wolfson releases two high-definition audio devices WM8861 and WM8862
21ic News Wolfson Microelectronics Co., Ltd. has released two new high-definition audio devices WM8861 and WM8862 for personal computers and notebook computers. The new devices offer up to five times better audio quality than existing solutions on the market today, with a 105dB signal-to-digital converter (DAC) and true 2Vrms capacitorless output capability. When combined with the advanced power management features of Wolfson's Clarity Audio Studio PC software, the WM8861 and WM8862 can significantly extend the battery life of a typical laptop for up to 30 minutes. This article refers to the address: http:// Both devices have built-in stereo speaker drivers that provide 2W of output per 4Ω load per channel and have the highest efficiency achievable on PC audio devices. The WM8861 and WM8862 require fewer external components to achieve this high level of audio quality, reducing the number of external components on average, reducing PCB board space requirements by 45%. In addition, this reduces the audio PCB material cost of a typical laptop by 56%. Wolfson's SilentSwitchTM technology ensures that no blasting and ticking at the output at any time, and that the unused audio path can be turned off quickly and quietly while ensuring maximum audio performance. Both devices feature speaker frequency response enhancement and dynamic range controllers in hardware that provide a louder sound from small speakers without the burden of audio signal processing on the main processor. This brings high-fidelity quality audio to laptops and dramatically improves the end-user experience – a perfect choice for music lovers, musicians, announcers and producers alike. There are many different types of headphones that consumers can choose from, and the way they are connected to the outlets varies. The WM8861 and WM8862 include an advanced headphone detection feature that actively detects the type of connection used when a headset is connected and translates the input connection into a property that matches the headset. This ensures full compatibility with earphones and headset connectors that are always diversified on the market today. The WM8861 has a new main I2S audio and I2C/SPI control interface that ensures control of downstream audio devices such as various high-fidelity DACs, digital input amplifiers or Wolfson WM0010 digital signal processor (DSP) audio DSPs . This ensures that audio signal processing is offloaded, resulting in lower power consumption and longer battery life. Nigel Burgess, Ou Sheng Microelectronics Product Line Manager, commented: “Consumers are constantly demanding higher quality audio, and the WM8861 and WM8862 provide a route to a differentiated audio experience that is not available in today's market. Wolfson's intellectual property (IP) has been leading the way in terms of performance and power consumption. The new devices from Wolfson will help original equipment manufacturers (OEMs) bring unbelievably wonderful multimedia performance to PC products. ." Samples of the WM8861 and WM8862 are available in November. The unit price of the WM8861 is US$4.22 when the order quantity is one thousand; the unit price of the WM8862 is US$3.9 when the order quantity is one thousand.
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