WM8533 w 24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output DESCRIPTION FEATURES The WM8533 is a stereo DAC with integral charge pump and High performance stereo DAC with ground referenced line software control interface. This provides 2Vrms line driver driver outputs using a 3.3V power supply rail. Audio performance 106dB SNR (A-weighted) The device features ground-referenced outputs and the use -89dB THD -1dBFS of a DC servo to eliminate the need for line driving coupling Digital volume control ranging from -100dB to +12dB capacitors and effectively eliminate power on pops and 120dB mute attenuation clicks. All common sample rates from 8kHz to 192kHz supported 2 The device is controlled and configured either via the I C/SPI compatible and hardware control modes 2 I2C/SPI compliant serial control interface or a hardware Data formats: LJ, RJ, I S, DSP control interface. De-emphasis supported Maximum 1mV DC offset on line outputs The device supports all common audio sampling rates Pop/click suppressed power up/down sequencer between 8kHz and 192kHz using all common MCLK / fs AVDD and LINEVDD +3.3V 10% allowing single supply ratios. Master and slave modes are available and de- DBVDD supply supports +1.8V or +3.3V digital I/O emphasis is also supported. 1.842 x 1.772mm 20-ball WCSP 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. APPLICATIONS Consumer digital audio applications requiring 2Vrms output Set Top Box Digital TV DVD Players Games Consoles A/V Receivers BLOCK DIAGRAM W CONTROL WM8533 INTERFACE LEFT LINEOUTL DAC MCLK DIGITAL BCLK DIGITAL AUDIO LINEREF FILTERS LRCLK INTERFACE DACDAT RIGHT LINEOUTR DAC CHARGE PUMP WOLFSON MICROELECTRONICS plc Production Data, July 2012, Rev 4.0 To receive regular email updates, sign up at WM8533 Production Data TABLE OF CONTENTS DESCRIPTION ....................................................................................................... 1 FEATURES ............................................................................................................ 1 APPLICATIONS .................................................................................................... 1 BLOCK DIAGRAM ................................................................................................ 1 TABLE OF CONTENTS ......................................................................................... 2 PIN CONFIGURATION .......................................................................................... 3 ORDERING INFORMATION .................................................................................. 3 PIN DESCRIPTION ................................................................................................ 4 ABSOLUTE MAXIMUM RATINGS ........................................................................ 5 RECOMMENDED OPERATING CONDITIONS ..................................................... 5 ELECTRICAL CHARACTERISTICS ..................................................................... 6 TERMINOLOGY ............................................................................................................... 7 TYPICAL PERFORMANCE ................................................................................... 7 TYPICAL POWER CONSUMPTION ................................................................................ 7 SIGNAL TIMING REQUIREMENTS ...................................................................... 8 SYSTEM CLOCK TIMING ................................................................................................ 8 AUDIO INTERFACE TIMING MASTER MODE ............................................................ 9 AUDIO INTERFACE TIMING SLAVE MODE .............................................................. 10 2 CONTROL INTERFACE TIMING I C MODE .............................................................. 11 CONTROL INTERFACE TIMING SPI MODE ............................................................. 12 POWER ON RESET ...................................................................................................... 13 DEVICE DESCRIPTION ...................................................................................... 15 INTRODUCTION ............................................................................................................ 15 SOFTWARE CONTROL INTERFACE ........................................................................... 15 DIGITAL AUDIO INTERFACE ........................................................................................ 19 DIGITAL AUDIO INTERFACE CONTROL ..................................................................... 21 DIGITAL AUDIO DATA SAMPLING RATES .................................................................. 23 DAC FEATURES ............................................................................................................ 24 HARDWARE CONTROL INTERFACE .......................................................................... 28 REGISTER MAP .................................................................................................. 30 REGISTER BITS BY ADDRESS .................................................................................... 31 DIGITAL FILTER CHARACTERISTICS .............................................................. 35 TERMINOLOGY ............................................................................................................. 35 DAC FILTER RESPONSES ........................................................................................... 36 DIGITAL DE-EMPHASIS CHARACTERISTICS ............................................................. 37 RECOMMENDED EXTERNAL COMPONENTS ................................................. 38 RECOMMENDED ANALOGUE LOW PASS FILTER .................................................... 39 RELEVANT APPLICATION NOTES .............................................................................. 39 PACKAGE DIMENSIONS .................................................................................... 40 IMPORTANT NOTICE ......................................................................................... 41 ADDRESS ...................................................................................................................... 41 PD, July 2012, Rev 4.0 w 2