WM1824 Datasheet, PDF (1/23 Pages) Wolfson Microelectronics plc – 24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output

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WM1824
24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
DESCRIPTION
The WM1824 is a stereo DAC with integral charge pump.
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 via a hardware
control interface.
The device supports all common audio sampling rates
between 8kHz and 192kHz using all common MCLK fs
rates. The audio interface operates in slave mode.
The WM1824 has a 3.3V tolerant digital interface, allowing
logic up to 3.3V to be connected.
The device is available in a 24-pin QFN.
FEATURES
 High performance stereo DAC with ground referenced line
driver
 Audio Performance
 106dB SNR (‘A-weighted’)
 -89dB THD @ -1dBFS
 120dB mute attenuation
 All common sample rates from 8kHz to 192kHz supported
 Hardware control mode
 Data formats: LJ, I²S
 Maximum 1mV DC offset on Line Outputs
 Pop/Click suppressed Power Up/Down Sequencer
 AVDD, LINEVDD and DBVDD can operate at +3.3V ±10%
allowing single supply
 24-lead QFN package
 Operating temperature range: -40°C to 85°C
APPLICATIONS
 Consumer digital audio applications requiring 2Vrms output
 Games Consoles
 Set Top Box
 A/V Receivers
 DVD Players
 Digital TV
BLOCK DIAGRAM
WOLFSON MICROELECTRONICS plc
Production Data, December 2011, Rev 4.1
Copyright 2011 Wolfson Microelectronics plc