Wolfson Stereo CODEC Targets Sound for Digital Video; Independent ADC and DAC on One Chip Simplifies Design and Lowers Cost.EDINBURGH, Scotland -- Wolfson Microelectronics (LSE LSE - Language Sensitive Editor :WLF) today introduced the WM8569 stereo CODEC, targeted for a range of audio applications including sound cards, digital televisions, DVD-RW (DVD-Read Write) A rewritable (re-recordable) DVD disc for both movies and data from the DVD Forum. Also called "DVD Dash RW" and "DVD Minus RW," DVD-RW uses phase change recording. The media hold 4.7GB per side and can be rewritten 1,000 times. devices and the rapidly growing portable video recorder market. The WM8569 is part of Wolfson's high-performance, multi-channel CODEC family. The user can control the ADC (1) See A/D converter. (2) (Apple Display Connector) A peripheral connector from Apple that combines digital video display, USB and power in one cable. and DAC See D/A converter and discretionary access control. DAC - Digital to Analog Converter clocks independently, allowing different record and playback rates. The device is both software and hardware controllable for flexible, easy implementation. The single chip solution reduces design complexity whilst outperforming common two-chip options at significantly lower price. "As the demand for high quality audio in digital entertainment applications, including portable video, continues to grow, designers need greater flexibility, reduced complexity and reduced cost in the components they use," said Julian Hayes, vice president of marketing for Wolfson. "Products like Wolfson's WM8569 deliver those benefits along with the performance and broad feature set the market demands." The WM8569 comprises a stereo 103dB SNR 24-bit multi-bit sigma delta DAC with oversampling Creating a more accurate digital representation of an analog signal. In order to work with real-world signals in the computer, analog signals are sampled some number of times per second (frequency) and converted into digital code. and digital interpolation interpolation In mathematics, estimation of a value between two known data points. A simple example is calculating the mean (see mean, median, and mode) of two population counts made 10 years apart to estimate the population in the fifth year. filters providing the output signal. It has a stereo 24-bit multi-bit, 100dB SNR sigma delta ADC and programmable audio-data interface modes supporting I2S, DSP, left and right-justified digital-audio formats. The WM8569 operates at analogue supply voltages from 2.7 to 5.5V and 2.7 to 3.6V for digital supplies. Price and Availability The WM8569 is now available for sampling in a 28-pin SSOP SSOP Shrink Small Outline Package SSOP Sanitation Standard Operating Procedures (USDA) SSOP Sanitary Standard Operating Procedures SSOP Sharescan-Open Platform (Ecopy) SSOP Site Security Operational Procedures priced at $1.33 in volumes of 10,000. About Wolfson Microelectronics Wolfson Microelectronics plc is a leading global provider of high performance, mixed-signal semiconductors for digital consumer electronics applications. Renowned worldwide for its audio and imaging technologies, Wolfson devices can be found at the heart of many of the world's highest profile consumer products, including mobile phones, MP3 players, gaming consoles, DVD players, DVD-RW, LCD-TV and multi-function peripherals. If a digital product can capture an image or play a sound, Wolfson's vision is to supply a product that will allow it to perform these tasks better. Headquartered in Edinburgh, UK, Wolfson has sales and engineering offices in the USA, Japan, China, Taiwan, Korea and Singapore. Wolfson Microelectronics plc is listed on the London Stock Exchange London Stock Exchange London marketplace for securities. It was formed in 1773 by a group of stockbrokers who had been doing business informally in local coffeehouses. (LSE:WLF). For more information about Wolfson Microelectronics, please visit www.wolfsonmicro.com or sign up for Wolfson eNews at http://www.wolfsonmicro.com/enews/. |
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