參數(shù)資料
型號: WM8756EFT
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): 16/39頁
文件大小: 330K
代理商: WM8756EFT
WM8756
Advance Information
AI Rev 1.3 October 2001
16
SPLIT RATE MODE
The WM8756 can be used with differing sample rates on the front and rear channels. This allows
extremely high quality audio to be played on the front two channels whilst the other channels use normal
high quality data streams.
This mode will only work with a front data rate of 192kHz and a rear rate of 96kHz but can be used with all
the normal data formats
except
the two DSP modes and with the system at either 128fs or 192fs see
Figure 11.
When running in split rate mode all the channels are clocked in using a common BCKIN; the front
channels using LRCIN and all the other channels using LRCIN2 see Figure 11.
LEFT CHANNEL
RIGHT CHANNEL
LRCIN
BCKIN
DIN0
2/fs
LSB
MSB
LSB
MSB
LEFT CHANNEL
RIGHT CHANNEL
n
2
1
n
2
1
n
2
1
n
2
1
LSB
MSB
LSB
MSB
n
2
1
n
2
1
MSB
LSB
LSB
MSB
DIN1/2
LRCIN2
LEFT CHANNEL
RIGHT CHANNEL
Figure 11 Split Rate Audio Mode Timing Diagram
Notes:
1. Figure 11 shows the timing for left justified. However, this is similar for right justified and I2S.
2. The edges of LRCIN and LRCIN2
must
be coincidental.
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