WM8580 PDF даташит
Спецификация WM8580 изготовлена «Wolfson Microelectronics» и имеет функцию, называемую «Multichannel CODEC». |
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Детали детали
Номер произв | WM8580 |
Описание | Multichannel CODEC |
Производители | Wolfson Microelectronics |
логотип |
30 Pages
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WM8580
Multichannel CODEC with S/PDIF Transceiver
DESCRIPTION
FEATURES
The WM8580 is a multi-channel audio CODEC with S/PDIF
transceiver. The WM8580 is ideal for DVD and surround
• Mutli-channel CODEC with 3 Stereo DACs and 1 Stereo
ADC
sound processing applications for home hi-fi, automotive
and other audiovisual equipment.
• Integrated S/PDIF / IEC-60958-3 transceiver
• Audio Performance
Integrated into the device is a stereo 24-bit multi-bit sigma
− 103dB SNR (‘A’ weighted @ 48kHz) DAC
delta ADC with support for digital audio output word lengths
from 16-bit to 32-bit, and sampling rates from 8kHz to
192kHz.
− -90dB THD (48kHz) DAC
− 100dB SNR (‘A’ weighted @ 48kHz) ADC
− -87dB THD (48kHz) ADC
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 I2S, Left
Justified, Right Justified and DSP digital audio formats.
Each audio interface can operate in either Master Mode or
Slave Mode.
• 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
− I2S, Left, Right Justified or DSP
− 16/20/24/32 bit Word Lengths
The S/PDIF transceiver is IEC-60958-3 compatible
supports frame rates from 32k/s to 192k/s. It has
multiplexed inputs and one output. Status and
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with Digital
Data Interfaces
monitoring is built-in and results can reported over the serial
• Flexible Digital Interface Routing with Clock Selection
interface or via GPO pins. S/PDIF Channel Block
Control
configuration is also supported.
The device has two PLLs that can be configured
independently to generate two system clocks for internal or
• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital Supply
Operation
• 48-lead TQFP Package
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.
APPLICATIONS
• Digital TV
• DVD Players and Receivers
• Surround Sound AV Processors and Hi-Fi systems
• Automotive Audio
The device is available in a 48-lead TQFP package.
WOLFSON MICROELECTRONICS plc
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Production Data, February 2007, Rev 4.0
Copyright ©2007 Wolfson Microelectronics plc
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WM8580
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PD Rev 4.0 February 2007
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TABLE OF CONTENTS
WM8580
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 ....................................................................................................................................... 7
RECOMMENDED OPERATING CONDITIONS .................................................................................................................... 8
ELECTRICAL CHARACTERISTICS ..................................................................................................................................... 8
TERMINOLOGY............................................................................................................................................................. 10
MASTER CLOCK TIMING.............................................................................................................................................. 11
DIGITAL AUDIO INTERFACE – MASTER MODE.......................................................................................................... 12
DIGITAL AUDIO INTERFACE – SLAVE MODE ............................................................................................................. 13
CONTROL INTERFACE TIMING – 3-WIRE MODE ....................................................................................................... 14
CONTROL INTERFACE TIMING – 2-WIRE MODE ....................................................................................................... 15
DEVICE DESCRIPTION ..................................................................................................................................................... 16
INTRODUCTION ............................................................................................................................................................ 16
CONTROL INTERFACE OPERATION ........................................................................................................................... 17
DIGITAL AUDIO INTERFACES...................................................................................................................................... 21
AUDIO DATA FORMATS ............................................................................................................................................... 23
AUDIO INTERFACE CONTROL..................................................................................................................................... 27
DAC FEATURES............................................................................................................................................................ 29
ADC FEATURES............................................................................................................................................................ 36
DIGITAL ROUTING OPTIONS ....................................................................................................................................... 37
CLOCK SELECTION...................................................................................................................................................... 39
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (SOFTWARE MODE)................................................................... 45
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (HARDWARE MODE) .................................................................. 53
S/PDIF TRANSCEIVER ................................................................................................................................................. 53
POWERDOWN MODES ................................................................................................................................................ 65
INTERNAL POWER ON RESET CIRCUIT..................................................................................................................... 67
HARDWARE CONTROL MODE .................................................................................................................................... 69
REGISTER MAP ............................................................................................................................................................ 72
DIGITAL FILTER CHARACTERISTICS.............................................................................................................................. 86
DAC FILTER RESPONSES ........................................................................................................................................... 86
DIGITAL DE-EMPHASIS CHARACTERISTICS ............................................................................................................. 87
ADC FILTER RESPONSES ........................................................................................................................................... 88
ADC HIGH PASS FILTER .............................................................................................................................................. 88
RECOMMENDED EXTERNAL COMPONENTS................................................................................................................. 89
PACKAGE DIMENSIONS................................................................................................................................................... 91
IMPORTANT NOTICE ........................................................................................................................................................ 92
ADDRESS:..................................................................................................................................................................... 92
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