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參數(shù)資料
| 型號： | WM8756 |
| 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)： | 7/39頁 |
| 文件大?。?/td> | 330K |
| 代理商： | WM8756 |
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WM8756
Advance Information
AI Rev 1.3 October 2001
7
DIGITAL FILTER CHARACTERISTICS
PARAMETER
Passband
Stopband
Passband Ripple
Stopband Attenuation
SYMBOL
TEST CONDITIONS
±
0.05 dB
-3dB
MIN
0.444fs
TYP
MAX
UNIT
dB
0.487fs
±
0.05
-60
dB
dB
f > 0.555fs
Table 4 Digital Filter Characteristics – PCM operation
SACD FILTER CHARACTERISTICS
With 64fs DSD data where fs = 44.1ks/s.
RESPONSE
FILTER RESPONSE WITHOUT POST-
FILTER
FILTER RESPONSE WITH 3
RD
ORDER
BUTTERWORTH POST-FILTER (-3dB AT 55KHZ)
Pass band peak ripple
Attenuation at 20kHz
Attenuation at 50kHz
Attenuation at 100kHz
0.017dB
-0.012dB
-2.3dB
-15.5dB
0.017dB
-0.021dB
-3.9dB
-31dB
Table 5 Overall frequency response in SACD mode.
TERMINOLOGY
1.
Signal-to-noise ratio (dB) - SNR is a measure of the difference in level between the full scale output and the output with no
signal applied. (No Auto-zero or Automute function is employed in achieving these results).
2.
Dynamic range (dB) - DNR is a measure of the difference between the highest and lowest portions of a signal. Normally a
THD+N measurement at 60dB below full scale. The measured signal is then corrected by adding the 60dB to it. (e.g.
THD+N @ -60dB= -32dB, DR= 92dB).
3.
THD+N (dB) - THD+N is a ratio, of the rms values, of (Noise + Distortion)/Signal.
4.
Stop band attenuation (dB) - Is the degree to which the frequency spectrum is attenuated (outside audio band).
5.
Channel Separation (dB) - Also known as Cross-Talk. This is a measure of the amount one channel is isolated from the
other. Normally measured by sending a full scale signal down one channel and measuring the other.
6.
Pass-Band Ripple - Any variation of the frequency response in the pass-band region.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM8756EFT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC |
| WM-875-899-PK | 制造商:Brady Corporation 功能描述:CONSECUTIVE NOS. - LEGEND: 875-899 |
| WM8758B | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Stereo CODEC with Headphone Driver and Line Out |
| WM8758BGEFL/RV | 功能描述:接口—CODEC Stereo CODEC plus PCM 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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8758BGEFL/V | 功能描述:接口—CODEC Stereo CODEC plus PCM 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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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