參數(shù)資料
型號: AK4101A
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: QUAD OUTPUTS 192KHZ 24 BIT DIT
中文描述: 四輸出192kHz的24位動態(tài)網(wǎng)
文件頁數(shù): 5/29頁
文件大?。?/td> 317K
代理商: AK4101A
ASAHI KASEI
[AK4101A]
MS0250-E-00
2003/07
- 13 -
BLS
C (or U,V)
LRCK
C(L0)
C(R0)
C(L1)
C(R31)
C(L31)
C(L32)
C(R191)
SDTI
(except I
2S)
L191
R191
L0
R30
R31
L31
SDTI
(I
2S)
L191
R191
L30
L31
R30
L0
R190
R0
Figure 2. Audio routing mode timing (AKMODE pin = “1”)
n Block Start Timing
Normal mode
In normal mode (TRANS pin = “0”), the block start signal is an output. It goes “H” two bit cycle after the beginning of
channel 2 of frame 0 in each block, and stays “H” for the first 32 frames.
Audio routing mode (transparent mode)
In audio routing mode (transparent mode) (ANS pin = TRANS pin = “1”), the block start becomes an input. Except in
I
2S mode, a block start signal sampled any time from the first positive BICK edge of the previous left channel to the
positive BICK edge preceding the transition of an LRCK indicating the left channel will result in the current left channel
being taken as the first sub frame of the current block. See Figure 3 below.
BICK
LRCK
(except I
2S)
(n-1)th channel 1
nth channel 1
LRCK
(I
2S)
(n-1)th channel 1
nth channel 1
(1)
Figure 3. Block start timing in audio routing mode
A block start signal arriving during “(1)” period will result in the usage of “nth channel 1” as the
first sub-frame of the block.
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