Wolfson brings high-quality sound and TV-connectivity to digital cameras
Monday, June 25, 2007
Edinburgh, UK – 25th June 2007 – Wolfson Microelectronics (LSE: WLF.L) today launched the WM8941, a high-performance low-power CODEC with an integrated video buffer and speaker driver to enhance the performance of digital still and video cameras. The WM8941 mono CODEC uses four programmable notch filters to provide high quality audio recording, whilst the integrated video buffer provides the convenience of direct connectivity to a television.
Wolfson has integrated the new CODEC, video buffer and speaker driver inside an ultra-compact 4x4mm chip, allowing the WM8941 to be easily and cost-effectively employed inside even the smallest of digital cameras.
Focusing on audio quality, the chip features a wind filter and four programmable notch filters in the ADC path, enabling the WM8941 to be tuned, suppressing narrowband noise. This includes motor and mechanical noise; giving a higher quality recording and a richer end-user experience. The current mode video buffer gives a seamless transition from a video DAC output to TV input and provides programmable gain of 0 or 6dB. A third order low pass filter also assures video buffer quality, removing undesired images from the unfiltered video DAC output.
In addition, Wolfson has provided an on-chip speaker and headphone driver, further reducing the need for external components. The headphone driver supports 40mW output power into 16ohms. Three flexible analogue inputs are provided: one auxiliary input and two for microphones - supporting differing configurations of single-ended and differential inputs.
The WM8941 provides a low power solution for digital cameras and operates between 2.5V and 3.6V (or 1.71V with digital). Sections of the chip can also be powered down with software control.
“The new CODEC is an important addition to Wolfson’s extensive product portfolio. The camera provides a challenging environment to record great sound and we’re happy to be able to offer customers a product that not only overcomes this issue, but provides additional functionality”, commented David Brook, Head of Product Marketing at Wolfson.
Availability and pricing: The WM8941 is available for sampling now, packaged in a 4x4x0.75mm 28-lead QFN package, priced at $1.79 in volumes of 10,000.
About Wolfson Microelectronics Wolfson Microelectronics plc is a leading global provider of high performance, mixed-signal semiconductors to the consumer electronics market.
Renowned worldwide for its high performance audio and ultra low power consumption, Wolfson devices are at the heart of many of the world’s highest profile consumer electronics products, including mobile phones, mp3 players, flat panel TVs and in-car infotainment systems. Wolfson technology enables exciting new end-user experiences by connecting the digital world to the human senses.
Headquartered in Edinburgh, UK, Wolfson has sales and engineering offices in the USA, Japan, China, Taiwan, Korea, Singapore and India.
Wolfson Microelectronics plc is listed on the London (LSE: WLF.L) stock exchange.
For more information about Wolfson Microelectronics, please visit: www.wolfsonmicro.com or sign up for Wolfson eNews at: www.wolfsonmicro.com/enews
Contact information Rob Ashwell EML +44-(0)20 8408 8000 wolfson@eml.com
Kay Giles Wolfson Microelectronics +44-(0)131 272 7000 kay.giles@wolfsonmicro.com
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