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參數(shù)資料
| 型號： | WM8773 |
| 廠商： | Wolfson Microelectronics |
| 元件分類： | ADC |
| 英文描述： | 24-bit, 96kHz ADC with 8 Channel I/P Multiplexer |
| 中文描述： | 24位，96kHz的ADC，具有8通道I /頁復用器 |
| 文件頁數(shù)： | 14/30頁 |
| 文件大?。?/td> | 270K |
| 代理商： | WM8773 |
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WM8773
Product Preview
PP Rev 1.0 June 2002
14
BCLK
DOUT
ADCLRC
WM8773
CODEC
DSP
ENCODER/
DECODER
Figure 7 Slave Mode
In Master mode (MS=1) ADCLRC and BCLK are outputs from the WM8773 (Figure 8). ADCLRC and
BITCLK are generated by the WM8773. ADCDAT is output on DOUT and changes on the falling
edge of BCLK. By setting control bit BCLKINV the polarity of BCLK may be reversed so that DOUT
changes on the rising edge of BCLK.
BCLK
DOUT
ADCLRC
WM8773
ADC
DSP/
ENCODER/
DECODER
Figure 8 Master Mode
AUDIO INTERFACE FORMATS
are supported:
Left Justified mode
Right Justified mode
I
2
S mode
DSP Early mode
DSP Late mode
All 5 formats send the MSB first and support word lengths of 16, 20, 24 and 32 bits, with the
exception of 32 bit right justified mode, which is not supported.
In left justified, right justified and I
2
S modes, the digital audio interface outputs ADC data on DOUT.
Audio Data for each stereo channel is time multiplexed with ADCLRC indicating whether the left or
right channel is present. ADCLRC is also used as a timing reference to indicate the beginning or end
of the data words.
In left justified, right justified and I
2
S modes, the minimum number of BCLKs per ADCLRC period is 2
times the selected word length. ADCLRC must be high for a minimum of word length BCLKs and
low for a minimum of word length BCLKs. Any mark to space ratio on ADCLRC is acceptable
provided the above requirements are met.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| WM8774 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24 - bit, 192kHz 8 - Channel Input Stereo Codec |
| WM8774IFT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24 - bit, 192kHz 8 - Channel Input Stereo Codec |
| WM8774IFV | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24 - bit, 192kHz 8 - Channel Input Stereo Codec |
| WM8775 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24-bit, 96kHz ADC with 4 Channel I/P Multiplexer |
| WM8775_06 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24-bit, 96kHz ADC with 4 Channel I/P Multiplexer |
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