參數資料
型號: AK4683
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Asynchronous Multi-Channel Audio CODEC with DIR/T
中文描述: 異步多聲道音頻編解碼器署長/噸
文件頁數: 49/82頁
文件大?。?/td> 1257K
代理商: AK4683
ASAHI KASEI
[AK4683]
MS0427-E-01
2005/11
- 49 -
Biphase Output
The AK4683 can output either the through output (from RX) or transmitter output (DIT) via TX pin. Those could be
selected by DIT bit. The source of the through output from TX0 could be selected among RX0-3 by OPS0, 1 bits. When
output DIT data, V bit could be controlled by VIN bit and first 5 bytes of C bit could be controlled by CT39-CT0 bits in
control registers. When bit0= “0”(consumer mode), bit20-23 (Audio channel) could not be controlled directly but be
controlled by CT20 bit. When the CT20 bit is “1”, the AK4683 outputs “1000” as C20-23 for left channel and outputs
“0100” at C20-23 for right channel automatically. When CT20 bit is “0”, the AK4683 outputs “0000” set as “1000” for
sub frame 1, and “0100” for sub frame 2. U bits are fixed to “0”.
DIT bit
OPS1 bit
OPS0 bit
0
0
0
0
0
1
0
1
0
0
1
1
1
*
*
TX Source
RX0
RX1
RX2
RX3
DIT
(default)
Table 54. TX Source Control
The CLKDT bit selects the clock source of DIT. This clock must be the same clock as the clock sources of PORT
connecting to DIT.
CM1
CM0
UNLOCK
0
0
-
0
1
-
0
1
0
1
1
1
-
Clock Source
PLL
EXTCLK
PLL
EXTCLK
EXTCLK
(default)
Table 55. Clock Mode Control
CLKDT bit
0
1
Clock Source
XTI
MCLK2
Table 56. EXTCLK Control
OCKS0
0
1
0
1
0
1
0
1
CKSDT
0
0
0
0
1
1
1
1
OCKS1
0
0
1
1
0
0
1
1
EXTCLK
256fs
256fs
512fs
128fs
384fs
384fs
768fs
192fs
fs(max)
96kHz
96kHz
48kHz
192kHz
48kHz
48kHz
32kHz
96kHz
Table 57. MCLKO Speed
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