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參數(shù)資料
| 型號： | XWM8728EDS |
| 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 |
| 文件頁數(shù)： | 20/28頁 |
| 文件大?。?/td> | 266K |
| 代理商： | XWM8728EDS |
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WM8728
Product Preview
WOLFSON MICROELECTRONICS LTD
PP Rev 1.2 April 2001
20
DE-EMPHASIS MODE
Setting the DEEMPH register bit puts the digital filters into de-emphasis mode:
REGISTER ADDRESS
0010
DAC Control
BIT
1
LABEL
DEEMPH
DEFAULT
0
DESCRIPTION
De-emphasis mode select:
0 : De-emphasis Off
1: De-emphasis On
Table 11 De-emphasis Control
POWERDOWN MODE
Setting the PWDN register bit immediately connects all outputs to V
MID
and selects a low power
mode. All trace of the previous input samples is removed, and all control register settings are
cleared. When PWDN is cleared again the first 16 input samples will be ignored, as the FIR will
repeat it
’
s power-on initialisation sequence.
REGISTER ADDRESS
0010
DAC Control
BIT
2
LABEL
PWDN
DEFAULT
0
DESCRIPTION
Power Down Mode Select:
0 : Normal Mode
1: Power Down Mode
Table 12 Powerdown control
DIGITAL AUDIO INTERFACE CONTROL REGISTERS
The WM8728 has a fully featured digital audio interface that is a superset of that contained in the
WM8716. Interface format is selected via the IWL[2:0] register bits in register M2 and the I
S
register bit in M3.
REGISTER ADDRESS
0010
DAC Control
0011
Interface Control
BIT
5:3
LABEL
IWL[2:0]
DEFAULT
000000
DESCRIPTION
Interface format Select
0
I
2
S
0
Interface format Select
Table 13 Interface Format Controls
IW2
I
2
S
IW1
IW0
AUDIO INTERFACE DESCRIPTION
(NOTE 1)
16 bit right justified mode
20 bit right justified mode
24 bit right justified mode
24 bit left justified mode
16 bit I
2
S mode
24 bit I
2
S mode
20 bit I
2
S mode
20 bit left justified mode
16 bit DSP mode
20 bit DSP mode
24 bit DSP mode
32 bit DSP mode
16 bit left justified mode
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
Table 14 Audio Data Input Format
Note:
In all modes, the data is signed 2
’
s complement. The digital filters always input 24-bit data. If the
DAC is programmed to receive 16 or 20 bit data, the WM8728 pads the unused LSBs with
ZEROS. If the DAC is programmed into 32-bit mode, the 8 LSBs are treated as zero.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XWM8728EDS/R | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24-bit, 192kHz Stereo DAC with Volume Control |
| XWM8729ED | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24-bit, 192kHz Stereo DAC |
| XWM8731EDS | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates |
| XWM8733ED | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:102dB Stereo DAC |
| XWM8734EDS | 功能描述:接口—CODEC Stereo CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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