An addition to the Pure Sound audio portfolio from Wolfson, the WM8783, is an ultra low-pin-count, low-power stereo ADC designed to offer high-quality line-input audio performance in recordable media applications, including LCD TVs, set-top boxes and DVD recorders. The device is easily integrated, says the company, and requires only two decoupling capacitors. The device is suitable for battery-powered applications and, as a line-in conversion path, results in significant savings on design time, PCB space and the audio sub-system bill of materials, according to the company. The ADC uses a high-performance multi-bit sigma-delta ADC architecture to provide an audio performance achieving 95dB SNR, -83dB THD and supporting sample rates from 8 to 96kHz. The ADC also simplifies system design through the use of on-chip regulators to enable operation from a single 3.3V supply. It accepts analogue inputs up to 1Vrms and provides an integrated high-pass filter to remove DC offset and suppress low-frequency noise. It is supplied in a SOIC-8 package. Evaluation boards are also available.
