WM8524CGEDT Cirrus Logic

WM8524 w 24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output DESCRIPTION FEATURES High performance stereo DAC with ground referenced line The WM8524 is a stereo DAC with integral charge pump driver and hardware 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 120dB mute attenuation capacitors and effectively eliminate power on pops and All common sample rates from 8kHz to 192kHz supported clicks. Hardware control mode 2 Data formats: LJ, RJ, I S The device is controlled and configured via a hardware Maximum 1mV DC offset on Line Outputs control interface. Pop/Click suppressed Power Up/Down Sequencer The device supports all common audio sampling rates AVDD and LINEVDD +3.3V 10% allowing single supply between 8kHz and 192kHz using all common MCLK fs 16-lead TSSOP package rates. The audio interface operates in slave mode. Operating temperature range: -40C to 85C The WM8524 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 16-pin TSSOP. Games Consoles Set Top Box A/V Receivers DVD Players Digital TV BLOCK DIAGRAM WOLFSON MICROELECTRONICS plc Production Data, October 2011, Rev 4.1 To receive regular email updates, sign up at WM8524 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 .............................................................................................................. 6 POWER CONSUMPTION MEASUREMENTS ................................................................ 7 SIGNAL TIMING REQUIREMENTS ...................................................................... 8 SYSTEM CLOCK TIMING ............................................................................................... 8 AUDIO INTERFACE TIMING SLAVE MODE ............................................................... 9 POWER ON RESET CIRCUIT ...................................................................................... 10 DEVICE DESCRIPTION ...................................................................................... 12 INTRODUCTION ........................................................................................................... 12 DIGITAL AUDIO INTERFACE ....................................................................................... 12 DIGITAL AUDIO DATA SAMPLING RATES ................................................................. 14 HARDWARE CONTROL INTERFACE .......................................................................... 15 POWER UP AND DOWN CONTROL ............................................................................ 16 POWER DOMAINS ....................................................................................................... 17 DIGITAL FILTER CHARACTERISTICS .............................................................. 18 DAC FILTER RESPONSES .......................................................................................... 19 APPLICATIONS INFORMATION ........................................................................ 20 RECOMMENDED EXTERNAL COMPONENTS ........................................................... 20 RECOMMENDED ANALOGUE LOW PASS FILTER .................................................... 21 RECOMMENDED PCB LAYOUT .................................................................................. 21 RELEVANT APPLICATION NOTES .............................................................................. 22 PACKAGE DIMENSIONS .................................................................................... 23 IMPORTANT NOTICE ......................................................................................... 24 ADDRESS ..................................................................................................................... 24 PD, Rev 4.1, October 2011 w 2