WM8523 Datasheet, PDF (1/51 Pages) Wolfson Microelectronics plc – 24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output

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WM8523
24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
DESCRIPTION
The WM8523 is a stereo DAC with integral charge pump
and software control interface. This provides 2Vrms line
driver outputs using a single 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
rates. Master and Slave modes are available and de-
emphasis is also supported.
The WM8523 has a 3.3V tolerant digital interface, allowing
logic up to 3.3V to be connected.
The device is available in a 20-lead TSSOP or 24-lead
QFN.
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
• 20-lead TSSOP or 24-lead QFN packages
• Operating temperature range: -40°C to 85°C
APPLICATIONS
• Consumer digital audio applications requiring 2Vrms output
− Set Top Box
− Digital TV
− DVD Players
− Games Consoles
− A/V Receivers
WOLFSON MICROELECTRONICS plc
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Production Data, August 2011, Rev 4.1
Copyright ©2011 Wolfson Microelectronics plc