WM8569_06

w DESCRIPTION The WM8569 is a stereo audio codec ideal for DVD, PVR, LCD-TV and automotive applications. Independent ADC and DAC clocking permits separate record and playback sampling rates. A stereo 24-bit multi-bit sigma delta DAC with oversampling and digital interpolation filters provides the output signal. Digital audio input word lengths from 16-24 bits and sampling rates from 8kHz to 192kHz are supported. A stereo 24-bit multi-bit sigma delta ADC is used. Digital audio output word lengths from 16-24 bits and sampling rates from 32kHz to 96kHz are supported. The DAC and ADC support independent sampling rates. The audio data interface supports I2S, left justified, right justified and DSP digital audio formats. The device is controlled via a 3-wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and power management facilities. A hardware control interface allows access to a limited feature set. The WM8569 is available in a 28-lead SSOP. WM8569 24-bit, 192kHz Stereo CODEC with Volume Control FEATURES • Audio Performance − 103dB SNR (‘A’ weighted @ 48kHz) DAC − DAC Sampling Frequency: 8kHz – 192kHz − 100dB SNR (‘A’ weighted @ 48kHz) ADC − ADC Sampling Frequency: 32kHz – 96kHz Independent Sampling Rates for ADC and DAC 3-wire SPI Serial or Hardware Control Interface Audio Mute and De-Emphasis Functions Programmable Audio Data Interface Modes − 16/20/24/32 bit Word Lengths − I2S, Left, Right Justified or DSP 2.7V to 5.5V Analogue Supply 2.7V to 3.6V Digital Supply 28-lead SSOP Package • • • • • • • APPLICATIONS • • • • • DVD Recorder Personal Video Recorder PC Sound Card Automotive Audio LCD-TV BLOCK DIAGRAM WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/ Production Data, June 2006, Rev 4.0 Copyright 2006 Wolfson Microelectronics plc WM8569 TABLE OF CONTENTS Production Data 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 .....................................................6 ELECTRICAL CHARACTERISTICS ......................................................................6 TERMINOLOGY ............................................................................................................ 7 MASTER CLOCK TIMING ............................................................................................. 8 DIGITAL AUDIO INTERFACE – MASTER MODE ......................................................... 8 DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 10 MPU INTERFACE TIMING .......................................................................................... 12 INTERNAL POWER ON RESET CIRCUIT ..........................................................13 DEVICE DESCRIPTION.......................................................................................14 INTRODUCTION ......................................................................................................... 14 AUDIO DATA SAMPLING RATES............................................................................... 14 HARDWARE CONTROL MODES ............................................................................... 15 DIGITAL AUDIO INTERFACE ..................................................................................... 17 POWERDOWN MODES ............................................................................................. 21 ZERO DETECT ........................................................................................................... 21 SOFTWARE CONTROL INTERFACE OPERATION................................................... 21 REGISTER MAP ......................................................................................................... 22 CONTROL INTERFACE REGISTERS ........................................................................ 23 DIGITAL FILTER CHARACTERISTICS ...............................................................30 DAC FILTER RESPONSES......................................................................................... 30 ADC FILTER RESPONSES......................................................................................... 31 ADC HIGH PASS FILTER ........................................................................................... 31 DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 31 APPLICATIONS INFORMATION .........................................................................33 RECOMMENDED EXTERNAL COMPONENTS .......................................................... 33 RECOMMENDED EXTERNAL COMPONENTS VALUES ........................................... 33 SUGGESTED ANALOGUE LOW PASS POST DAC FILTERS ................................... 34 PACKAGE DIMENSIONS ....................................................................................35 IMPORTANT NOTICE ..........................................................................................36 ADDRESS: .................................................................................................................. 36 w PD Rev 4.0 June 2006 2 Production Data WM8569 PIN CONFIGURATION ORDERING INFORMATION DEVICE W M8569SEDS/V TEMPERATURE RANGE -25 to +85oC -25 to +85oC PACKAGE 28-lead SSOP (Pb-free) 28-lead SSOP (Pb-free, tape and reel) MOISTURE SENSITIVITY LEVEL MSL3 MSL3 PEAK SOLDERING TEMPERATURE 260oC 260oC W M8569SEDS/RV Note: Reel quantity = 2,000 w PD Rev 4.0 June 2006 3 WM8569 PIN DESCRIPTION PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 NAME DACMCLK ADCBCLK DACBLCK ADCLRC DACLRC DVDD DGND DIN NC DOUT CSB/IDF SCLK/IWL SDIN/DM MUTE REFADC ADCVREFN DACVREFN DACVREFP VMID AINR AINL VOUTL VOUTR NC AGND AVDD MODE TYPE Digital Input Digital Input Digital Input/Output Digital Input/Output Digital Input/Output Supply Supply Digital input No Connect Digital output Digital input Digital input Digital input Digital input/output Analogue output Supply Supply Supply Analogue output Analogue input Analogue input Analogue output Analogue output No Connect Supply Supply Digital Input DESCRIPTION Master DAC clock: 256fs, 384fs, 512fs or 768fs ADC audio interface bit clock DAC audio interface bit clock ADC left/right word clock DAC left/right word clock Digital positive supply Digital ground DAC data input No Connect ADC data output Software Mode: Serial control interface latch signal Hardware Mode: Input audio data format Software Mode: Serial control interface clock Hardware Mode: Audio data input word length Software Mode: Serial control interface data Hardware Mode: De-emphasis selection DAC Zero Flag output or DAC mute input Production Data ADC reference buffer decoupling pin; 10uF external decoupling ADC negative reference supply DAC negative reference supply DAC positive reference supply Midrail divider decoupling pin; 10uF external decoupling ADC right input ADC left input DAC left output DAC right output No Connect Analogue negative supply and substrate connection Analogue positive supply Control format selection: 0 = Software mode 1 = Hardware mode Master ADC clock: 256fs, 384fs, 512fs or 768fs 28 ADCMCLK Digital Input Note: Digital input pins have Schmitt trigger input buffers. w PD Rev 4.0 June 2006 4 Production Data WM8569 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified. ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device. Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage conditions prior to surface mount assembly. These levels are: MSL1 = unlimited floor life at