w
DESCRIPTION
The WM8580 is a multi-channel audio CODEC with S/PDIF
transceiver. The WM8580 is ideal for DVD and surround
sound processing applications for home hi-fi, automotive
and other audiovisual equipment.
Integrated into the device is a stereo 24-bit multi-bit sigma
delta ADC with support for digital audio output word lengths
from 16-bit to 32-bit, and sampling rates from 8kHz to
192kHz.
Also included are three stereo 24-bit multi-bit sigma delta
DACs, each with a dedicated oversampling digital
interpolation filter. Digital audio input word lengths from 16-
bits to 32-bits and sampling rates from 8kHz to 192kHz are
supported. Each DAC channel has independent digital
volume and mute control.
Two independent audio data interfaces support I
2
S, Left
Justified, Right Justified and DSP digital audio formats.
Each audio interface can operate in either Master Mode or
Slave Mode.
The S/PDIF transceiver is IEC-60958-3 compatible and
supports frame rates from 32k/s to 96k/s. It has four
multiplexed inputs and one output. Status and error
monitoring is built-in and results can reported over the serial
interface or via GPO pins. S/PDIF Channel Block
configuration is also supported.
The device has two PLLs that can be configured
independently to generate two system clocks for internal or
external use.
Device control and setup is via a 2-wire or 3-wire (SPI
compatible) serial interface. The serial interface provides
access to all features including channel selection, volume
controls, mutes, de-emphasis, S/PDIF control/status, and
power management facilities. Alternatively, the device has a
Hardware Control Mode where device features can be
enabled/disabled using selected pins.
The device is available in a 48-lead TQFP package.
•
•
•
•
•
•
WM8580
Multichannel CODEC with S/PDIF Transceiver
FEATURES
•
•
•
Multi-channel CODEC with 3 Stereo DACs and 1 Stereo
ADC
Integrated S/PDIF / IEC-60958-3 transceiver
Audio Performance
−
−
103dB SNR (‘A’ weighted @ 48kHz) DAC
-90dB THD (48kHz) DAC
−
100dB SNR (‘A’ weighted @ 48kHz) ADC
−
-87dB THD (48kHz) ADC
DAC Sampling Frequency: 8kHz – 192kHz
ADC Sampling Frequency: 8kHz – 192kHz
Independent ADC and DAC Sample Rates
2 and 3-Wire Serial Control Interface with readback, or
Hardware Control Interface
GPO pins allow visibility of user selected status flags
Programmable Audio Data Interface Modes
−
I
2
S, Left, Right Justified or DSP
−
16/20/24/32 bit Word Lengths
Three Independent Stereo DAC Outputs with Digital
Volume Controls
Two Independent Master or Slave Audio Data Interfaces
Flexible Digital Interface Routing with Clock Selection
Control
2.7V to 5.5V Analogue, 2.7V to 3.6V Digital Supply
Operation
48-lead TQFP Package
•
•
•
•
•
APPLICATIONS
•
•
•
•
Digital TV
DVD Players and Receivers
Surround Sound AV Processors and Hi-Fi systems
Automotive Audio
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up
at
http://www.wolfsonmicro.com/enews/
Production Data, August 2007, Rev 4.3
Copyright
©2007
Wolfson Microelectronics plc
WM8580
BLOCK DIAGRAM
Production Data
w
PD Rev 4.3 August 2007
2
Production Data
WM8580
TABLE OF CONTENTS
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................2
TABLE OF CONTENTS .........................................................................................3
PIN CONFIGURATION...........................................................................................4
ORDERING INFORMATION ..................................................................................4
PIN DESCRIPTION ................................................................................................5
MULTI-FUNCTION PINS............................................................................................... 6
ABSOLUTE MAXIMUM RATINGS.........................................................................8
RECOMMENDED OPERATING CONDITIONS .....................................................9
ELECTRICAL CHARACTERISTICS ......................................................................9
TERMINOLOGY .......................................................................................................... 12
MASTER CLOCK TIMING ........................................................................................... 12
DIGITAL AUDIO INTERFACE – MASTER MODE ....................................................... 13
DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 14
CONTROL INTERFACE TIMING – 3-WIRE MODE .................................................... 15
CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 16
DEVICE DESCRIPTION.......................................................................................17
INTRODUCTION ......................................................................................................... 17
CONTROL INTERFACE OPERATION ........................................................................ 18
DIGITAL AUDIO INTERFACES................................................................................... 22
AUDIO DATA FORMATS ............................................................................................ 24
AUDIO INTERFACE CONTROL.................................................................................. 28
DAC FEATURES......................................................................................................... 30
ADC FEATURES......................................................................................................... 39
DIGITAL ROUTING OPTIONS .................................................................................... 40
CLOCK SELECTION ................................................................................................... 42
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (SOFTWARE MODE) ................ 48
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (HARDWARE MODE) ............... 55
S/PDIF TRANSCEIVER............................................................................................... 55
POWERDOWN MODES ............................................................................................. 68
INTERNAL POWER ON RESET CIRCUIT.................................................................. 70
HARDWARE CONTROL MODE.................................................................................. 72
REGISTER MAP ......................................................................................................... 75
DIGITAL FILTER CHARACTERISTICS ...............................................................90
DAC FILTER RESPONSES......................................................................................... 91
DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 92
ADC FILTER RESPONSES......................................................................................... 92
ADC HIGH PASS FILTER ........................................................................................... 93
APPLICATIONS INFORMATION .........................................................................94
RECOMMENDED EXTERNAL COMPONENTS .......................................................... 94
PACKAGE DIMENSIONS ....................................................................................96
IMPORTANT NOTICE ..........................................................................................97
ADDRESS: .................................................................................................................. 97
w
PD Rev 4.3 August 2007
3
WM8580
PIN CONFIGURATION
Production Data
ORDERING INFORMATION
DEVICE
WM8580AGEFT/V
WM8580AGEFT/RV
Note:
Reel quantity = 2,200
TEMPERATURE
RANGE
-40 to +85
o
C
-40 to +85
o
C
PACKAGE
48-lead TQFP
(Pb-free)
48-lead TQFP
(Pb-free, tape and reel)
MOISTURE
SENSITIVITY LEVEL
MSL1
MSL1
PEAK
SOLDERING
TEMPERATURE
260°C
260°C
w
PD Rev 4.3 August 2007
4
Production Data
WM8580
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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
NAME
PGND
PVDD
XTI
XTO
MFP10
MFP9
MFP8
MFP7
MFP6
SPDIFOP
MFP5
MFP4
MFP3
SPDIFIN1
CLKOUT
DVDD
DGND
MUTE
DIN1
DIN2
DIN3
PAIFRX_LRCLK
PAIFRX_BCLK
MCLK
DOUT
PAIFTX_LRCLK
MFP1
MFP2
HWMODE
SWMODE
SDO
SDIN
SCLK
CSB
AINR
AINL
ADCREFP
VMID
AGND
AVDD
VOUT1L
VOUT1R
VOUT2L
VOUT2R
VREFP
VREFN
TYPE
Supply
Supply
Digital Input
Digital Output
Digital Output
Digital Output
Digital Input/Output
Digital Input/Output
Digital Input/Output
Digital Output
Digital Input/Output
Digital Input/Output
Digital Input/Output
Digital Input
Digital Output
Supply
Supply
Digital Input/Output
Digital Input
Digital Input
Digital Input
Digital Input/Output
Digital Input/Output
Digital Input/Output
Digital Output
Digital Input/Output
Digital Input/Output
Digital Input/Output
Digital Input
Digital Input/Output
Digital Output
Digital Input/Output
Digital Input
Digital Input
Analogue Input
Analogue Input
Analogue Output
Analogue Output
Supply
Supply
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Input
Analogue Input
PLL ground
PLL positive supply
Crystal or CMOS clock input
Crystal output
Multi-Function Pin (MFP) 10. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 9. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 8. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 7. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 6. See Table 1 for details of all MFP pins.
S/PDIF transmitter output.
Multi-Function Pin (MFP) 5. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 4. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 3. See Table 1 for details of all MFP pins.
S/PDIF receiver input 1
PLL or crystal oscillator clock output
Digital positive supply
Digital ground
DAC mute-all Input / All-DAC Infinite Zero Detect (IZD) flag output
Primary Audio Interface (PAIF) receiver data input 1
Primary Audio Interface (PAIF) receiver data input 2
Primary Audio Interface (PAIF) receiver data input 3
Primary Audio Interface (PAIF) receiver left/right word clock
Primary Audio Interface (PAIF) receiver bit clock
System Master clock; 256, 384, 512, 768, 1024 or 1152 fs
Primary Audio Interface (PAIF) transmitter data output
Primary audio interface transmitter left/right word clock
Multi-Function Pin (MFP) 1. See Table 1 for details of all MFP pins.
Multi-Function Pin (MFP) 2. See Table 1 for details of all MFP pins.
Configures control to be either Software Mode or Hardware Mode
Configures software interface to be either 2-wire or 3-wire. See note 2.
3-wire control interface data output. See note 3.
Control interface data input (and output under 2-wire control)
Control interface clock
3-wire control interface latch signal / device address selection
ADC Right Channel Input
ADC Left Channel Input
ADC reference buffer decoupling pin; 10uF external decoupling
Midrail divider decoupling pin; 10uF external decoupling
Analogue ground
Analogue positive supply
DAC channel 1 left output
DAC channel 1 right output
DAC channel 2 left output
DAC channel 2 right output
DAC and ADC positive reference
DAC and ADC ground reference
DESCRIPTION
w
PD Rev 4.3 August 2007
5
京公网安备 11010802033920号
EEWORLD
