WM8523GEDT Cirrus Logic

WM8523 24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output DESCRIPTION FEATURES High performance stereo DAC with ground referenced line The WM8523 is a stereo DAC with integral charge pump driver and software control interface. This provides 2Vrms line Audio Performance driver outputs using a single 3.3V power supply rail. 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 I C/SPI compatible and hardware control modes The device is controlled and configured either via the 2 Data formats: LJ, RJ, I S, DSP I2C/SPI compliant serial control interface or a hardware De-emphasis supported control interface. 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 rates. Master and Slave modes are available and de- 20-lead TSSOP package emphasis is also supported. Operating temperature range: -40C to 85C The WM8523 has a 3.3V tolerant digital interface, allowing APPLICATIONS logic up to 3.3V to be connected. Consumer digital audio applications requiring 2Vrms output The device is available in a 20-lead TSSOP package. Set Top Box Digital TV DVD Players Games Consoles A/V Receivers BLOCK DIAGRAM CONTROL INTERFACE WM8523 LEFT LINEVOUTL DAC MCLK DIGITAL DIGITAL BCLK AUDIO LRCLK FILTERS INTERFACE DACDAT RIGHT LINEVOUTR DAC CHARGE PUMP Rev 4.3 Copyright Cirrus Logic, Inc., 2009 2020 JAN 2020 WM8523 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 ........................................................................................................................ 6 POWER CONSUMPTION MEASUREMENTS .......................................................................... 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 CIRCUIT ................................................................................................ 13 DEVICE DESCRIPTION ............................................................................................... 15 INTRODUCTION ..................................................................................................................... 15 SOFTWARE CONTROL INTERFACE..................................................................................... 15 DIGITAL AUDIO INTERFACE ................................................................................................. 18 DIGITAL AUDIO INTERFACE CONTROL ............................................................................... 21 DIGITAL AUDIO DATA SAMPLING RATES ........................................................................... 23 DAC FEATURES ..................................................................................................................... 23 HARDWARE CONTROL INTERFACE .................................................................................... 28 POWER DOMAINS ................................................................................................................. 30 REGISTER MAP ........................................................................................................... 31 REGISTER BITS BY ADDRESS ............................................................................................. 32 DIGITAL FILTER CHARACTERISTICS ....................................................................... 36 TERMINOLOGY ...................................................................................................................... 36 DAC FILTER RESPONSES .................................................................................................... 37 DIGITAL DE-EMPHASIS CHARACTERISTICS ...................................................................... 38 APPLICATIONS INFORMATION ................................................................................. 39 RECOMMENDED EXTERNAL COMPONENTS ..................................................................... 39 RECOMMENDED PCB LAYOUT ............................................................................................ 40 RECOMMENDED ANALOGUE LOW-PASS FILTER .............................................................. 41 RELEVANT APPLICATION NOTES ........................................................................................ 41 PACKAGE DIMENSIONS ............................................................................................. 42 IMPORTANT NOTICE .................................................................................................. 43 REVISION HISTORY .................................................................................................... 44 2 Rev 4.3