WM8772SEDS/RV
WM8772SEDS/RV Datasheet
WM8772
| Part | Datasheet |
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WM8772SEDS/RV |
WM8772SEDS/RV (pdf) |
| Related Parts | Information |
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WM8772SEDS/V |
WM8772SEDS/V |
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| WM8772 24-bit, 192kHz 6-Channel Codec with Volume Control The WM8772 is a multi-channel audio codec ideal for DVD and surround sound processing applications for home hi-fi, automotive and other audio visual equipment. A stereo 24-bit multi-bit sigma delta ADC is used. Digital audio output word lengths from 16-32 bits and sampling rates from 32kHz to 96kHz are supported. The 32-lead version allows separate ADC and DAC samples rates. Three stereo 24-bit multi-bit sigma delta DACs are used with oversampling digital interpolation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 192kHz are supported. Each DAC channel has independent digital volume and mute control. 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 channel selection, volume controls, mutes, de-emphasis and power management facilities. The device is available in a 28-pin SSOP or 32 pin TQFP. BLOCK DIAGRAM - 28 PIN SSOP • Audio Performance − 103dB SNR ‘A’ weighted 48kHz DAC − 100dB SNR ‘A’ weighted 48kHz ADC TQFP • DAC Sampling Frequency 8kHz 192kHz • ADC Sampling Frequency 32kHz 96kHz • ADC and DAC can run at different sample rates 32 pin TQFP version only • 3-Wire SPI Serial or Hardware Control Interface • Programmable Audio Data Interface Modes − I2S, Left, Right Justified or DSP − 16/20/24/32 bit Word Lengths • Three Independent stereo DAC outputs with independent digital volume controls • Master or Slave Audio Data Interface • 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation • 28 pin SSOP or 32 pin TQFP Package • DVD Players • Surround Sound AV Processors and Hi-Fi systems • Automotive Audio VREFN VMID VREFP REFADC DOUT BCLK LRC DIN1 DIN2 DIN3 MCLK AVDD AGND AINL AINR VREFN STEREO ADC AUDIO INTERFACE DIGITAL FILTERS VREFN VREFP STEREO DAC STEREO DAC STEREO DAC LOW PASS FILTER LOW PASS FILTER LOW PASS FILTER VOUT1L VOUT1R VOUT2L VOUT2R VOUT3L VOUT3R CONTROL INTERFACE WM8772EDS DVDD DGND MUTE MODE ML/I2S MC/IWL MD/DM WOLFSON MICROELECTRONICS plc w :: WM8772 BLOCK DIAGRAM 32 PIN TQFP Production Data DACVREFN VMID DACVREFP REFADC ADCVREFN ADCMCLK* DOUT ADCLRC* ADCBCLK* DACBCLK* DACLRC* DIN1 DIN2 DIN3 DACMCLK* AVDD AGND AINL AINR STEREO ADC AUDIO INTERFACE DIGITAL FILTERS VREFNVREFP STEREO DAC STEREO DAC STEREO DAC DESCRIPTION APPLICATIONS BLOCK DIAGRAM - 28 PIN SSOP BLOCK DIAGRAM 32 PIN TABLE OF CONTENTS PIN CONFIGURATION - 28 LEAD SSOP ORDERING INFORMATION PIN CONFIGURATION 32 LEAD ORDERING INFORMATION PIN DESCRIPTION 28 LEAD PIN DESCRIPTION 32 LEAD TQFP ABSOLUTE MAXIMUM RECOMMENDED OPERATING CONDITIONS ADC HIGH PASS FILTER 14 DIGITAL DE-EMPHASIS 14 WM8772EDS 28 PIN SSOP MASTER CLOCK TIMING 16 DIGITAL AUDIO INTERFACE MASTER MODE 16 MPU INTERFACE TIMING 19 INTRODUCTION 20 AUDIO DATA SAMPLING 20 HARDWARE CONTROL MODES 21 DIGITAL AUDIO INTERFACE 23 POWERDOWN MODES 27 ZERO DETECT 27 CONTROL INTERFACE REGISTERS 29 RECOMMENDED EXTERNAL COMPONENTS 37 SUGGESTED ANALOGUE LOW PASS POST DAC FILTERS 38 WM8722EFT - 32 PIN TQFP MASTER CLOCK TIMING 41 DIGITAL AUDIO INTERFACE MASTER MODE 41 MPU INTERFACE TIMING 44 DEVICE INTRODUCTION 46 AUDIO DATA SAMPLING 46 HARDWARE CONTROL MODES 47 DIGITAL AUDIO INTERFACE 49 POWERDOWN MODES 54 ZERO DETECT 54 SOFTWARE CONTROL INTERFACE OPERATION REGISTER MAP 32 PIN TQFP CONTROL INTERFACE REGISTERS 56 WM8772 Production Data APPLICATIONS INFORMATION RECOMMENDED EXTERNAL COMPONENTS 66 SUGGESTED ANALOGUE LOW PASS POST DAC FILTERS...........................67 PACKAGE DIMENSIONS IMPORTANT NOTICE ADDRESS 70 Production Data PIN CONFIGURATION - 28 LEAD SSOP MODE 1 MCLK 2 BCLK 3 LRC 4 DVDD 5 DGND DIN1 DIN2 8 DIN3 9 DOUT ML/I2S MC/IWL 12 MD/DM MUTE 14 AVDD AGND VOUT3R VOUT3L VOUT2R VOUT2L VOUT1R VOUT1L AINL AINR VMID VREFP VREFN REFADC WM8772 ORDERING INFORMATION DEVICE WM8772EDS TEMPERATURE RANGE -25 to +85oC WM8772EDS/R -25 to +85oC WM8772SEDS/V -25 to +85oC WM8772SEDS/RV -25 to +85oC Note Reel quantity = 2,000 PACKAGE 28-pin SSOP 28-pin SSOP tape and reel 28-pin SSOP lead free 28-pin SSOP lead free, tape and reel MOISTURE SENSITIVITY LEVEL MSL1 MSL2 MSL2 PEAK SOLDERING TEMPERATURE 260oC 260oC 260oC WM8772 PIN CONFIGURATION 32 LEAD TQFP VOUT3L VOUT2R VOUT2L VOUT1R VOUT1L AINL AINR VMID VOUT3R AGND AVDD MODE ADCMCLK DACMLCK ADCBCLK DACBCLK 16 15 14 13 12 11 10 9 25 26 27 28 29 30 31 32 24 23 22 21 20 19 18 17 12 3456 78 DACVREFP DACVREFN ADCVREFN REFADC MUTE MD/DM MC/IWL ML/I2S Production Data ADCLRC DACLRC DVDD DGND DIN1 DIN2 DIN3 DOUT ORDERING INFORMATION DEVICE WM8772EFT TEMPERATURE RANGE -25 to +85oC WM8772SEFT/V -25 to +85oC WM8772EFT/R -25 to +85oC WM8772SEFT/RV -25 to +85oC Note Reel quantity = 2,200 PACKAGE 32-lead TQFP 32-lead TQFP lead free 32-lead TQFP tape and reel 32-lead TQFP lead free, tape and reel MOISTURE SENSITIVITY LEVEL MSL1 MSL2 MSL1 MSL2 PEAK SOLDERING TEMPERATURE 240oC 260oC 240oC 260oC Production Data WM8772 PIN DESCRIPTION 28 LEAD SSOP NAME TYPE MODE Digital input Control format selection 0 = Software control 1 = Hardware control MCLK Digital input Master clock 256, 384, 512 or 768fs fs = word clock frequency combined ADCMCLK and DACMCLK BCLK Digital input/output Audio interface bit clock combined ADCBCLK and DACBCLK Digital input/output Audio left/right word clock combined ADCLRC and DACLRC DVDD Supply The Moisture Sensitivity Level for each package type is specified in Ordering Information. CONDITION Digital supply voltage Analogue supply voltage range digital inputs 1 Voltage range analogue inputs 1 Master Clock Frequency Operating temperature range, TA Storage temperature after soldering Package body temperature soldering 10 seconds Package body temperature soldering 2 minutes Notes Analogue and digital grounds must always be within 0.3V of each other. MIN -0.3V -0.3V DGND -0.3V AGND -0.3V -25°C -65°C MAX +5V +7V DVDD +0.3V AVDD +0.3V 37MHz +85°C +150°C Refer to Ordering Information, p5 and p6 +183°C WM8772 Production Data RECOMMENDED OPERATING CONDITIONS PARAMETER TEST CONDITIONS Digital supply range DVDD Analogue supply range AVDD, VREFP Ground AGND, VREFN, DGND Difference DGND to AGND Note Digital supply DVDD must never be more than 0.3V greater than AVDD. UNIT V ELECTRICAL CHARACTERISTICS Test Conditions AVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs, 32-pin TQFP version unless otherwise stated. ADC/DAC in Slave Mode unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS DAC Performance Load = 50pF UNIT 0dBFs Full scale output voltage Vrms VREFP/5 SNR Note 1,2,4 A-weighted, fs = 48kHz SNR Note 1,2,4 A-weighted fs = 96kHz SNR Note 1,2,4 A-weighted fs = 192kHz SNR Note 1,2,4 A-weighted fs = 48kHz, AVDD = 3.3V SNR Note 1,2,4 A-weighted fs = 96kHz, AVDD = 3.3V Dynamic Range Note 2,4 A-weighted, -60dB full |
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