WM8770SIFT/RV

WM8770SIFT/RV Datasheet

WM8770

Part	Datasheet
WM8770SIFT/RV	WM8770SIFT/RV (pdf)

Related Parts	Information
WM8770SIFT/V	WM8770SIFT/V

PDF Datasheet Preview
WM8770 24-bit, 192kHz 8-Channel CODEC with Volume Control The WM8770 is a high performance, multi-channel audio codec. The WM8770 is ideal for 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 with an eight stereo channel input selector. Each channel has analogue domain mute and programmable gain control. Digital audio output word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported. Four 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 analogue volume and mute control, with a set of input multiplexors allowing selection of an external 3 channel stereo analogue input into these volume controls. The audio data interface supports I2S, left justified and right justified 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 64-lead TQFP package. BLOCK DIAGRAM • Audio Performance − 106dB SNR ‘A’ weighted 48kHz DAC − 102dB SNR ‘A’ weighted 48kHz ADC • DAC Sampling Frequency 8KHz 192kHz • ADC Sampling Frequency 8KHz 96kHz • 3-Wire SPI or CCB MPU Serial Control Interface • Master or Slave Clocking Mode • Programmable Audio Data Interface Modes − I2S, Left or Right Justified − 16/20/24/32 bit Word Lengths • Four Independent stereo DAC outputs with independent analogue and digital volume controls • Analogue Bypass Path Feature • Six channel selectable AUX input to the volume controls • Eight stereo ADC inputs with analogue gain adjust from +19dB to in 1dB steps • 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation • 5V tolerant digital inputs • Surround Sound AV Processors and Hi-Fi systems • Automotive Audio AGND2 VMIDDAC AVDD2 AINVGL AINVGR AGND1 VMIDADC AVDD1 REFADC ZFLAG1 ZFLAG2 MCLK DOUT ADCLRC BCLK DACLRC DIN1 DIN2 DIN3 DIN4 DACREFP1 DACREFP2 INPUT SOURCE SELECTOR DGND DVDD RESETB CL CE DI GR1 GR2 AUX1L AUX1R AUX2L AUX2R AUX3L AUX3R WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at Production Data, March 2011, Rev Copyright 2011 Wolfson Microelectronics plc WM8770 TABLE OF CONTENTS Production Data BLOCK DIAGRAM TABLE OF CONTENTS ORDERING INFORMATION PIN DESCRIPTION ABSOLUTE MAXIMUM ELECTRICAL CHARACTERISTICS TERMINOLOGY 8 MASTER CLOCK DIGITAL AUDIO INTERFACE MASTER MODE 9 DIGITAL AUDIO INTERFACE SLAVE MODE 11 MPU INTERFACE TIMING 12 INTERNAL POWER ON RESET CIRCUIT DEVICE DESCRIPTION INTRODUCTION 17 AUDIO DATA SAMPLING 18 ZERO DETECT 19 POWERDOWN MODES 20 DIGITAL AUDIO INTERFACE 20 CONTROL INTERFACE OPERATION 23 CONTROL INTERFACE REGISTERS 25 REGISTER DIGITAL FILTER CHARACTERISTICS DAC FILTER 44 ADC FILTER 45 ADC HIGH PASS FILTER 45 DIGITAL DE-EMPHASIS 46 APPLICATIONS INFORMATION RECOMMENDED EXTERNAL COMPONENTS 47 EXTERNAL CIRCUIT CONFIGURATION 48 PACKAGE DIMENSIONS IMPORTANT NOTICE ADDRESS 51 Production Data PIN CONFIGURATION RESETB CE DI CL MCLK BCLK ADCLRC DACLRC DIN4 DIN3 DIN2 DIN1 DOUT ZFLAG2 ZFLAG1 DVDD AIN1L AIN1R AIN2L AIN2R AIN3L AIN3R AIN4L AIN4R AIN5L AIN5R AIN6L AIN6R AIN7L AIN7R AIN8L AIN8R 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 DGND AGND2 VOUT4R VOUT4L DACREFP2 VOUT3R GR2 VOUT3L VMIDDAC VOUT2R GR1 VOUT2L DACREFP1 VOUT1R VOUT1L AVDD2 WM8770 AINOPL AINVGL AINVGR AINOPR RECL RECR REFADC VMIDADC AGND1 AVDD1 AUX1L AUX1R AUX2L AUX2R AUX3L AUX3R ORDERING INFORMATION DEVICE WM8770SIFT/V TEMPERATURE RANGE -40oC to +85oC WM8770SIFT/RV Note Reel Quantity 750 -40oC to +85oC PACKAGE 64-lead TQFP Pb-free 64-lead TQFP tape and reel, Pb-free MOISTURE SENSITIVITY LEVEL MSL3 MSL3 PEAK SOLDERING TEMPERATURE 260oC 260oC WM8770 PIN DESCRIPTION NAME AIN1L AIN1R AIN2L AIN2R AIN3L AIN3R AIN4L AIN4R AIN5L AIN5R AIN6L AIN6R AIN7L AIN7R AIN8L AIN8R AINOPL AINVGL AINVGR AINOPR RECL RECR The Moisture Sensitivity Level for each package type is specified in Ordering Information. CONDITION Digital supply voltage Analogue supply voltage range digital inputs DI, CL, CE & RESETB Voltage range digital inputs MCLK, DIN[3:0], ADCLRC, DACLRC & BCLK Voltage range analogue inputs Master Clock Frequency Operating temperature range, TA Storage temperature Note Analogue and digital grounds must always be within 0.3V of each other. MIN -0.3V -0.3V DGND -0.3V DGND -0.3V AGND -0.3V -40°C -65°C MAX +3.63V +7V +7V DVDD + 0.3V AVDD +0.3V 37MHz +85°C +150°C RECOMMENDED OPERATING CONDITIONS PARAMETER TEST CONDITIONS Digital supply range DVDD Analogue supply range AVDD Ground AGND, DGND Difference DGND to AGND Note digital supply DVDD must never be more than 0.3V greater than AVDD. UNIT V Production Data WM8770 ELECTRICAL CHARACTERISTICS Test Conditions AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs, ADC/DAC in Slave Mode unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS UNIT Digital Logic Levels TTL Levels Input LOW level Input HIGH level Output LOW Output HIGH IOL=1mA IOH-1mA x DVDD x DVDD Analogue Reference Levels Reference voltage VVMID AVDD/2 Potential divider resistance RVMID

PDF Datasheet Preview

WM8770
24-bit, 192kHz 8-Channel CODEC with Volume Control

The WM8770 is a high performance, multi-channel audio codec. The WM8770 is ideal for 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 with an eight stereo channel input selector. Each channel has analogue domain mute and programmable gain control. Digital audio output word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported.

Four 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 analogue volume and mute control, with a set of input multiplexors allowing selection of an external 3 channel stereo analogue input into these volume controls.

The audio data interface supports I2S, left justified and right justified 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 64-lead TQFP package.

BLOCK DIAGRAM
• Audio Performance − 106dB SNR ‘A’ weighted 48kHz DAC − 102dB SNR ‘A’ weighted 48kHz ADC
• DAC Sampling Frequency 8KHz 192kHz
• ADC Sampling Frequency 8KHz 96kHz
• 3-Wire SPI or CCB MPU Serial Control Interface
• Master or Slave Clocking Mode
• Programmable Audio Data Interface Modes
− I2S, Left or Right Justified − 16/20/24/32 bit Word Lengths
• Four Independent stereo DAC outputs with independent analogue and digital volume controls
• Analogue Bypass Path Feature
• Six channel selectable AUX input to the volume controls
• Eight stereo ADC inputs with analogue gain adjust from +19dB to in 1dB steps
• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation
• 5V tolerant digital inputs
• Surround Sound AV Processors and Hi-Fi systems
• Automotive Audio

AGND2 VMIDDAC AVDD2

AINVGL AINVGR AGND1 VMIDADC AVDD1 REFADC ZFLAG1 ZFLAG2 MCLK DOUT ADCLRC BCLK DACLRC DIN1 DIN2 DIN3 DIN4 DACREFP1 DACREFP2

INPUT SOURCE SELECTOR

DGND DVDD RESETB

CL CE DI GR1 GR2 AUX1L AUX1R AUX2L AUX2R AUX3L AUX3R

WOLFSON MICROELECTRONICS plc

To receive regular email updates, sign up at

Production Data, March 2011, Rev

Copyright 2011 Wolfson Microelectronics plc

WM8770

TABLE OF CONTENTS

Production Data

BLOCK DIAGRAM TABLE OF CONTENTS
ORDERING INFORMATION

PIN DESCRIPTION

ABSOLUTE MAXIMUM

ELECTRICAL CHARACTERISTICS TERMINOLOGY 8

MASTER CLOCK DIGITAL AUDIO INTERFACE MASTER MODE 9 DIGITAL AUDIO INTERFACE SLAVE MODE 11 MPU INTERFACE TIMING 12

INTERNAL POWER ON RESET CIRCUIT

DEVICE DESCRIPTION INTRODUCTION 17 AUDIO DATA SAMPLING 18 ZERO DETECT 19 POWERDOWN MODES 20 DIGITAL AUDIO INTERFACE 20 CONTROL INTERFACE OPERATION 23 CONTROL INTERFACE REGISTERS 25

REGISTER

DIGITAL FILTER CHARACTERISTICS DAC FILTER 44 ADC FILTER 45 ADC HIGH PASS FILTER 45 DIGITAL DE-EMPHASIS 46

APPLICATIONS INFORMATION RECOMMENDED EXTERNAL COMPONENTS 47 EXTERNAL CIRCUIT CONFIGURATION 48

PACKAGE DIMENSIONS

IMPORTANT NOTICE ADDRESS 51

Production Data

PIN CONFIGURATION

RESETB CE DI CL MCLK BCLK ADCLRC DACLRC DIN4 DIN3 DIN2 DIN1 DOUT ZFLAG2 ZFLAG1 DVDD

AIN1L AIN1R AIN2L AIN2R AIN3L AIN3R AIN4L AIN4R AIN5L AIN5R AIN6L AIN6R AIN7L AIN7R AIN8L AIN8R
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

DGND AGND2

VOUT4R VOUT4L DACREFP2

VOUT3R GR2 VOUT3L VMIDDAC VOUT2R

GR1 VOUT2L DACREFP1 VOUT1R VOUT1L AVDD2

WM8770

AINOPL AINVGL AINVGR AINOPR

RECL RECR REFADC VMIDADC AGND1 AVDD1 AUX1L AUX1R AUX2L AUX2R AUX3L AUX3R
ORDERING INFORMATION

DEVICE WM8770SIFT/V

TEMPERATURE RANGE
-40oC to +85oC

WM8770SIFT/RV

Note Reel Quantity 750
-40oC to +85oC

PACKAGE
64-lead TQFP Pb-free
64-lead TQFP tape and reel, Pb-free

MOISTURE SENSITIVITY LEVEL

MSL3

MSL3

PEAK SOLDERING TEMPERATURE
260oC
260oC

WM8770

PIN DESCRIPTION

NAME

AIN1L

AIN1R

AIN2L

AIN2R

AIN3L

AIN3R

AIN4L

AIN4R

AIN5L

AIN5R

AIN6L

AIN6R

AIN7L

AIN7R

AIN8L

AIN8R

AINOPL

AINVGL

AINVGR

AINOPR

RECL

RECR
The Moisture Sensitivity Level for each package type is specified in Ordering Information.

CONDITION Digital supply voltage Analogue supply voltage range digital inputs DI, CL, CE & RESETB Voltage range digital inputs MCLK, DIN[3:0], ADCLRC, DACLRC & BCLK Voltage range analogue inputs Master Clock Frequency Operating temperature range, TA Storage temperature

Note Analogue and digital grounds must always be within 0.3V of each other.

MIN -0.3V -0.3V DGND -0.3V DGND -0.3V

AGND -0.3V
-40°C -65°C

MAX +3.63V
+7V +7V DVDD + 0.3V

AVDD +0.3V 37MHz +85°C +150°C

RECOMMENDED OPERATING CONDITIONS

PARAMETER

TEST CONDITIONS

Digital supply range

DVDD

Analogue supply range

AVDD

Ground

AGND, DGND

Difference DGND to AGND

Note digital supply DVDD must never be more than 0.3V greater than AVDD.

UNIT V

Production Data

WM8770

ELECTRICAL CHARACTERISTICS

Test Conditions AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs, ADC/DAC in Slave Mode unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

UNIT

Digital Logic Levels TTL Levels

Input LOW level

Input HIGH level Output LOW Output HIGH

IOL=1mA

IOH-1mA
x DVDD
x DVDD

Analogue Reference Levels

Reference voltage

VVMID

AVDD/2

Potential divider resistance

RVMID

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived WM8770SIFT/RV Datasheet file may be downloaded here without warranties.

Datasheet ID: WM8770SIFT/RV 523276