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Stereo ADC targets recordable media apps

Posted: 05 Jan 2010 ?? ?Print Version ?Bookmark and Share

Keywords:stereo? audio? ADC? recordable media?

WM8783 stereo ADC

Wolfson Microelectronics grows its Pure Sound audio portfolio with the introduction of the WM8783, an ultralow pin-count, low-power stereo ADC solution. Designed to offer high quality line input audio performance in recordable media applications, the ADC suits LCD TVs, STBs and DVD recorders.

The WM8783 is an easily-integrated, simple 'plug and play' device requiring a single 3.3V supply. The WM8783 has the lowest ADC pin count on the market and requires only two decoupling capacitors. The low-power WM8783 is also suitable for battery-powered applications, providing system designers with an easy-to-use, high-quality line-in conversion path, resulting in significant savings on design time, PCB space and the audio subsystem BOM.

The WM8783 uses a high performance multi-bit Sigma Delta ADC architecture to provide superior audio performance achieving 95dB SNR, -83dB THD and supporting sample rates from 8kHz to 96kHz. The WM8783 also simplifies system design through the use of on-chip regulators to enable operation from a single 3.3V supply. The WM8783 accepts analog inputs up to 1Vrms and provides an integrated high pass filter to remove DC offset and suppress low frequency noise.

Barry Paterson, director of engineering for high performance audio, Wolfson, said: "We believe that the WM8783 will offer customers a simple cost effective solution without any compromise on performance. The WM8783 is simple to use and requires minimal external components to realize an effective solution."

The WM8783 is available for sampling now in a SOIC-8 package.

WM8783 customer evaluation boards are available to aid device evaluation and development.





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