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WM8533
24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
DESCRIPTION
The WM8533 is a stereo DAC with integral charge pump and software control interface. This provides 2Vrms line driver outputs using a 3.3V power supply rail. The device features ground-referenced outputs and the use of a DC servo to eliminate the need for line driving coupling capacitors and effectively eliminate power on pops and clicks. The device is controlled and configured either via the I2C/SPI complia.
24-bit 192kHz Stereo DAC
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WM8533
24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
DESCRIPTION
The WM8533 is a stereo DAC with integral charge pump and software control interface. This provides 2Vrms line driver outputs using a 3.3V power supply rail. The device features ground-referenced outputs and the use of a DC servo to eliminate the need for line driving coupling capacitors and effectively eliminate power on pops and clicks. The device is controlled and configured either via the I2C/SPI compliant serial control interface or a hardware control interface. The device supports all common audio sampling rates between 8kHz and 192kHz using all common MCLK / fs ratios. Master and slave modes are available and deemphasis is also supported. The WM8533 has a 1.8 to 3.3V tolerant digital interface, allowing logic up to 3.3V to be connected. The device is available in a 1.842 x 1.772mm 20-ball WCSP.
BLOCK DIAGRAM
FEATURES
High performance stereo DAC with ground referenced line driver
Audio performance 106dB SNR (‘A-weighted’) -89dB THD @ -1dBFS
Digital volume control ranging from -100dB to +12dB 120dB mute attenuation All common sample rates from 8kHz to 192kHz supported I2C/SPI compatible and hardware control modes Data formats: LJ, RJ, I2S, DSP De-emphasis supported Maximum 1mV DC offset on line outputs Pop/click suppressed power up/down sequencer AVDD and LINEVDD +3.3V ±10% allowing single supply DBVDD supply supports +1.8V or +3.3V digital I/O 1.842 x .