參數(shù)資料
型號: WM8756EFT
廠商: Wolfson Microelectronics
英文描述: 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC
中文描述: 192kHz的六聲道SACD的兼容的音頻數(shù)模轉(zhuǎn)換器
文件頁數(shù): 1/39頁
文件大?。?/td> 330K
代理商: WM8756EFT
WM8756
192kHz, Six Channel SACD Compatible Audio DAC
WOLFSON MICROELECTRONICS LTD
www.wolfsonmicro.com
Advance Information October 2001, Rev 1.3
Copyright
2001 Wolfson Microelectronics Ltd
.
DESCRIPTION
The WM8756 is a high performance 6-channel DAC
designed for audio applications such as SACD players,
DVD-V and DVD-A, home audio and theatre systems. The
device supports data input word lengths from 16 to 32-bits
and sampling rates up to 192kHz. The WM8756 can
implement 2 or 6 channels at 192kHz for high-end DVD-
Audio, or 6 channels at up to 192kHz for surround
applications. Additionally 64x DSD bitstream support is
offered on all 6 channels. The WM8756 consists of a serial
interface port, digital interpolation filters, multi-bit sigma
delta modulators and 6 DACs in a 48-pin TQFP package.
The WM8756 also includes a digitally controllable mute and
attenuator function on each channel, accessible during
PCM operation. An on-chip multiplexer selects between
PCM or DSD audio data input pins.
The WM8756 supports hardware or software connection
schemes for audio DAC control. The serial control interface
provides access to a wide range of features including on-
chip mute, attenuation and phase reversal. Hardware pin-
controllable operation is also available.
The WM8756 is an ideal device for all surround sound
applications supporting the SACD audio format, such as
SACD
players,
multi-format
entertainment systems.
players
and
home
FEATURES
6-Channel DAC with PCM or Bitstream (DSD) operation.
DSD 64x Bitstream Support for Super Audio CD
Independent input pins for PCM and DSD data with on-
chip multiplexer
THD –96dB, SNR 106dB (‘A’ weighted @ 48kHz)
PCM mode Sampling Rate: 8kHz – 192kHz
Master or slave operation with Normal or Phase
modulation method of DSD data transfer
3-Wire Serial Control Interface
Programmable PCM Audio Data Interface Modes
I
2
S, Left, Right Justified or DSP
16/20/24/32 bit Word Lengths
Independent Digital Volume Control on Each Channel with
127.5dB Range in 0.5dB Steps (in PCM mode)
3.0V – 5.5V Supply (3.3V digital / 5V analogue option)
48-pin TQFP Package
APPLICATIONS
Super Audio CD (SACD) Players
Universal and Multi-Format disc players
Home theatre systems
BLOCK DIAGRAM
CONTROL
INTERFACE
DIGITAL
FILTERS
MOSIGMA
MOSIGMA
MUX
MUX
PCM/DSD
DIGITAL
FILTERS
MOSIGMA
MOSIGMA
MUX
MUX
PCM/DSD
DIGITAL
FILTERS
MOSIGMA
MOSIGMA
MUX
MUX
PCM/DSD
INAUDIO
PCM
DATA
DSD
DATA
LOW
FILTER
LOW
RIGHT
LEFT
BCKIN
LRCIN
LRCIN2
DSD4
DSD5
DSD3
DSD2
DSD1
DSD0
DSDCLK64
DIN2
DIN1
DIN0
DSDCLK128
CSB
DMCKSE
L
DMSLV
MUTE
MODE
SCKI
DSDB
MD/DM
MC/IWL
ML/I2S
OUT0R
OUT2L
GR2
OUT2R
OUT1L
GR1
OUT1R
OUT0L
GR0
LOW
LOW
RIGHT
LEFT
LOW
LOW
RIGHT
LEFT
AGND3
DGND
AVDD1
AGND1
AVDD2
AGND2
DVDD
相關(guān)PDF資料
PDF描述
WM8756 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC
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