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參數(shù)資料
| 型號： | WM8746 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 24BIT 192KHZ 6 CHANNEL DAC WITH VOLUME CONTROL |
| 中文描述： | 24位192kHz的6通道DAC，帶有音量控制 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大小： | 265K |
| 代理商： | WM8746 |
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WM8746
24-bit, 192kHz 6-Channel DAC with Volume Control
WOLFSON MICROELECTRONICS LTD
www.wolfsonmicro.com
Advance Information Novembe
r
2001, Rev 1.4
Copyright
2001 Wolfson Microelectronics Ltd
.
DESCRIPTION
WM8746 is a high performance 6-channel DAC designed
for audio applications such as DVD, home theatre systems,
and digital TV. The WM8746 supports data input word
lengths from 16 to 32-bits and sampling rates up to 192kHz.
The WM8746 can convert up to 6 channels at sample rates
from 8 to 192kHz. Additionally WM8746 supports 2
channels
at
192kHz
and
simultaneously.
4
channels
at
96kHz
The WM8746 consists of a serial interface port, digital
interpolation filters, multi-bit sigma delta modulators and 6
DACs in a small 28-pin SSOP package. The WM8746 also
includes a digitally controllable mute and attenuator function
on each channel.
The WM8746 supports a variety of 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. A hardware controllable
interface is also available. It is pin-compatible with the
WM8736, (apart from RSTB pin which is typically unused).
The WM8746 is an ideal device to interface to AC-3 ,
DTS , and MPEG audio decoders for surround sound
applications, or for use in “universal” high definition audio
players supporting DVD-A formats.
FEATURES
6-Channel DAC
Audio Performance
106dB SNR (‘A’ weighted @ 48kHz) DAC
-96dB THD
DAC Sampling Frequency: 8kHz – 192kHz
3-Wire Serial Control Interface
Programmable 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
3.0V – 5.5V Supply Operation
28-Pin SSOP Package
Exceeds Dolby Class A Performance Requirements
Pin Compatible with WM8736
APPLICATIONS
DVD and DVD ‘Universal’ Players
Home theatre systems
Digital broadcast receivers
BLOCK DIAGRAM
OUT0L
GR0
OUT0R
BCKIN
LRCIN
DIN0
DIN1
DIN2
Digital
Filter
Sigma
Delta
Modulator
Stereo
DAC
ML/I2S
MC/IWL
MD/DM
MODE
MUTE
SCKI
F
I
L
B
M
D
P
A
P
L0A[7:0]
R0A[7:0]
OUT1L
GR1
OUT1R
Digital
Filter
Sigma
Delta
Modulator
Stereo
DAC
L1A[7:0]
R1A[7:0]
OUT2L
GR2
OUT2R
Digital
Filter
Sigma
Delta
Modulator
Stereo
DAC
L2A[7:0]
R2A[7:0]
AUDIO
INTERFACE
DAC
CHANNEL
CONTROL
U
L
R
CONTROL
INTERFACE
P
P
P
CAP
AVDD2
AVDD1
AGND2
AGND1
DVDD
DGND
LRCIN2
WM8746
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| WM8746EDS | 24BIT 192KHZ 6 CHANNEL DAC WITH VOLUME CONTROL |
| WM8750LEFL | STEREO CODEC FOR PORTABLE AUDIO APPLICATIONS |
| WM8750L | BOX 5.63X3.25X1.51 9V BLK |
| WM8750LSEFL | BOX 5.63X3.25X1.51 9V GRY |
| WM8751LEFL | STEREO DAC FOR PORTABLE AUDIO APPLICATIONS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM8746_06 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24-bit, 192kHz 6-Channel DAC with Volume Control |
| WM8746EDS | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24BIT 192KHZ 6 CHANNEL DAC WITH VOLUME CONTROL |
| WM8746SEDS | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 6-Channel DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| WM8746SEDS/R | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 6-Channel DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| WM8750BL | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Stereo CODEC for Portable Audio Applications |
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