參數(shù)資料
型號(hào)： WM8728
廠商： Wolfson Microelectronics
英文描述： 24-bit, 192kHz Stereo DAC with Volume Control and DSD Support
中文描述： 24位，192kHz立體聲DAC，具有音量控制和渠務(wù)署支持
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 266K
代理商： WM8728
WM8728
24-bit, 192kHz Stereo DAC
with Volume Control and DSD Support
Product Preview, Rev 1.2, April 2001
WOLFSON MICROELECTRONICS LTD
Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK
Tel: +44 (0) 131 667 9386
Fax: +44 (0) 131 667 5176
Email: sales@wolfson.co.uk
www.wolfsonmicro.com
Product Preview
data sheets contain
specifications for products in the
formative phase of development. These
products may be changed or discontinued
without notice.
2001 Wolfson Microelectronics Ltd
.
DESCRIPTION
The WM8728 is a high performance stereo DAC designed
for audio applications such as DVD, home theatre systems,
and digital TV. The WM8728 supports PCM data input word
lengths from 16 to 32-bits and sampling rates up to 192kHz.
Alternatively the WM8728 can operate in DSD compatible
mode where a 64x bitstream is input for each channel. The
WM8728 consists of a serial interface port, digital
interpolation filters, multi-bit sigma delta modulators and
stereo DAC in a small 20-pin SSOP package. The WM8728
also includes a digitally controllable mute and attenuate
function for each channel.
The WM8728 supports a variety of connection schemes for
audio DAC control. The 2 or 3-wire MPU serial port provides
access to a wide range of features including on-chip mute,
attenuation and phase reversal. A hardware controllable
interface is also available (DSD operation is only possible in
hardware mode).
The WM8728 is an ideal device to interface to AC-3
,
DTS
, and MPEG audio decoders for surround sound
applications, or for use in DVD players supporting DVD-A.
FEATURES
Stereo DAC with 24 bit PCM or single bit DSD operation
Audio Performance
-
106dB SNR (‘A’ weighted @ 48kHz) DAC
-
-97dB THD
DAC Sampling Frequency: 8kHz - 192kHz
2 or 3-Wire Serial Control Interface or Hardware Control
Programmable Audio Data Interface Modes
-
I
2
S, Left, Right Justified, DSP
-
16/20/24/32 bit Word Lengths
Independent Digital Volume Control on Each Channel with
127.5dB Range in 0.5dB Steps
3.0V - 5.5V Supply Operation
20-pin SSOP Package
Exceeds Dolby Class A Performance Requirements
APPLICATIONS
DVD-Audio and DVD ‘Universal’ Players
Home theatre systems
Digital TV
Digital broadcast receivers
BLOCK DIAGRAM
SERIAL
INTERFACE
MUTE/
ATTEN
CONTROL INTERFACE
BCKIN
SIGMA
DELTA
MODULATOR
LRCIN
DIN
MUTE/
ATTEN
SIGMA
DELTA
MODULATOR
DIGITAL FILTERS
MCLK
DVDD
AVDD
MUTEB
SDIDEM
SCKDSD
LATI2S
MODE
CSBIWL
ZERO
VOUTL
VOUTR
VMID
AGND
DGND
LOW
PASS
FILTER
LOW
PASS
FILTER
RIGHT
DAC
LEFT
DAC
MUX
MUX
PCM/DSD
WM8728
VREFP VREFN
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
WM8728_04 制造商:WOLFSON 制造商全稱(chēng):WOLFSON 功能描述:24-bit, 192kHz Stereo DAC with Volume Control
WM8728_12 制造商:WOLFSON 制造商全稱(chēng):WOLFSON 功能描述:24-bit, 192kHz Stereo DAC with Volume Control
WM8728-6059-DS20-M-S 功能描述:音頻 IC 開(kāi)發(fā)工具 WM8728 MINI Eval Board System RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
WM8728SEDS 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類(lèi)型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
WM8728SEDS/R 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類(lèi)型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
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