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Wolfson Launches High-End Stereo Audio ADCs

For professional and prestige consumer markets (October 29, 2004)

Mixed-signal IC specialist Wolfson Microelectronics plc today launches a new family of high-performance 24-bit stereo ADCs for high-performance recordable media devices, such as recordable DVD Players and personal video recorders, and A/V amplifiers, as well as high-end sound cards and studio-audio processing equipment.

Utilizing advanced mixed-signal techniques in multi bit sigma-delta design, and a proprietary cascade topology, WM8780/1/5/6 maximize signal to noise ratio, up to 111dB, resulting in clean, accurate sound in compact and convenient surface mount packages. A choice of single-ended or differential analog inputs allows designers to achieve an optimal balance of audio performance, system cost and design effort. Both input-types are available in hardware and software controllable variants.

The WM8780 and WM8781 have single-ended inputs and achieve signal-to-noise ratio of 107 dB and total harmonic distortion 98dB. Designed with differential inputs, the WM8785 and WM8786 reach 111 dB SNR and a total harmonic distortion 102 dB.

Capable of 24-bit high-resolution sampling at frequencies from 8 kHz to 192 kHz, the digital output audio word length is configurable from 16- to 32-bit and delivered as a PCM output. Wolfsons proprietary low-order modulator minimizes jitter effects, and a selectable high pass filter is available to remove residual DC offsets. The devices support a TDM bus, providing designers with extra flexibility to build advanced audio processing equipment, including complex multi-channel studio equipment or surround sound systems.

The WM8780 is packaged in a very low pin-count 16-pin SOIC for optimum board space utilization and low number of interconnects. WM8781, WM8785 and WM8786 are available in small outline 20-pin SSOP packages.

The WM8780, WM8781, WM8785 and WM8786 are available now in volume quantities priced at $1.53, $1.62, $1.85 and $1.90 (U.S.) respectively in quantities of 10,000.

About Wolfson Microelectronics
Wolfson Microelectronics plc (LSE: WLF.L) is an award winning, fabless semiconductor company based in Edinburgh, UK. Wolfson develops and markets high-performance mixed signal semiconductors for multimedia and communications applications worldwide. The company currently has sales offices in the USA, Japan, China, Taiwan and Korea. For further information please contact:

For more information about Wolfson Microelectronics products and services in the US, Call: (858) 676 5090. For additional information, visit:


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Related Keywords:Wolfson, Stereo Audio, ADC, Wolfson Microelectronics, recordable media, recordable DVD Players, personal video recorders, amplifiers, sound cards, WM8780, WM8781, WM8785, WM8786, surround sound, semiconductors,


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