FEATURES
Audio Performance DAC SNR 98dB (’A’ weighted @ 48kHz) THD -81dB (’A’ weighted @ 48kHz) DAC Sampling Frequency: 8kHz ? 192kHz Pin Selectable Audio Data Interface Format I2S, 16-bit Right Justified or 16-bit DSP 2.0 Vrms output at 12V or 9V supply 8.2V to 13.2V Analogue, 2.7V to 3.6V Digital Supply 14-pin SOIC Package
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DESCRIPTION
The WM8521 is a 192kHz stereo DAC with an integrated output op-amp stage, designed to generate a 2.0Vrms output signal directly, so reducing external component requirements in digital audio applications.
WM8521 comes into two variants WM8521HC and WM8521H9 which offers different line drive output capabilities. WM8521HC outputs 2Vrms at 12V supply, while WM8521H9 outputs 2.0Vrms at 9V supply. WM8521HC/H9 are designed for cost sensitive consumer digital audio applications requiring 2Vrms line output.
A 24-bit multi-bit sigma delta DAC is used with oversampling digital interpolation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 192kHz are supported.
The audio interface supports I2S, Right Justified and DSP digital audio formats.
The devices are controlled via a hardware interface which provides access to features including de-emphasis, mute and data formats. These devices are pin equivalent and are available in a 14-pin SOIC package.
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