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參數(shù)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(shù)： | 32/82頁 |
| 文件大小： | 1257K |
| 代理商： | AK4683 |
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ASAHI KASEI
[AK4683]
MS0427-E-01
2005/11
- 32 -
1-2. TDM 256 mode: TDMA1-0 bit = “01”
The TDMA1-0 bits = “01” set the AK4683 audio serial interface format to the TDM 256 mode. The serial data of
all SDTIA (1,2,3) is input to the SDTIA1 pin. The input data to SDTIA2-3 pins is ignored. BICKA should be fixed
to 256fs. “H” time and “L” time of I/OLRCKA pin should be 1/256fs at least. The DIFA1-0 bits select eight
modes.
Mode
Master
/slave
8
Slave
0
0
24bit, L J
9
Slave
0
1
24bit, L J
10
Slave
1
0
24bit, L J
11
Slave
1
1
24bit, I
2
S
12
Master
0
0
24bit, L J
13
Master
0
1
24bit, L J
14
Master
1
0
24bit, L J
15
Master
1
1
24bit, I
2
S
Table 32. Audio Interface Format (TDM 256 mode, L J: Left justified, R J: Right justified.)
LRCKA
↑
↑
↑
↓
↑
↑
↑
↓
BICKA
256fs
256fs
256fs
256fs
256fs
256fs
256fs
256fs
DIFA1
DIFA0
SDTOA
SDTIA1-3
I/O
I
I
I
I
O
O
O
O
I/O
I
I
I
I
O
O
O
O
20bit, R J
24bit, R J
24bit, L J
24bit, I
2
S
20bit, R J
24bit, R J
24bit, L J
24bit, I
2
S
default
1-3. TDM 128 mode: TDMA1-0 bit = “11”
The TDMA1-0 bits = “11” set the AK4683 audio serial interface format to the TDM 1286 mode. The four channel
serial data (SDTIA1, 2) is input to the SDTIA1 pin. Other two channel data (SDTIA3) is input to the SDTIA2 pin.
Mode
Master
/slave
16
Slave
0
0
24bit, L J
17
Slave
0
1
24bit, L J
18
Slave
1
0
24bit, L J
19
Slave
1
1
24bit, I
2
S
20
Master
0
0
24bit, L J
21
Master
0
1
24bit, L J
22
Master
1
0
24bit, L J
23
Master
1
1
24bit, I
2
S
Table 33. Audio Interface Format (TDM 128 mode, L J: Left justified, R J: Right justified.)
LRCKA
↑
↑
↑
↓
↑
↑
↑
↓
BICKA
128fs
128fs
128fs
128fs
128fs
128fs
128fs
128fs
DIFA1
DIFA0
SDTOA
SDTIA1-3
I/O
I
I
I
I
O
O
O
O
I/O
I
I
I
I
O
O
O
O
20bit, R J
24bit, R J
24bit, L J
24bit, I
2
S
20bit, R J
24bit, R J
24bit, L J
24bit, I
2
S
default
2. Setting for the PORTB
2-1: Normal mode:
The PORTB supports only the normal mode. The DIFB1-0 bits select following eight serial data format (Table 34).
Mode
Master
/slave
0
Slave
0
0
24bit, L J
1
Slave
0
1
24bit, L J
2
Slave
1
0
24bit, L J
3
Slave
1
1
24bit, I
2
S
4
Master
0
0
24bit, L J
5
Master
0
1
24bit, L J
6
Master
1
0
24bit, L J
7
Master
1
1
24bit, I
2
S
Table 34. Audio Interface Format (Normal mode, L J: Left justified, R J: Right justified.)
LRCKB
H/L
H/L
H/L
L/H
H/L
H/L
H/L
L/H
BICKB
≥
48fs
≥
48fs
≥
48fs
≥
48fs
64fs
64fs
64fs
64fs
DIFB1
DIFB0
SDTOB
SDTIB
I/O
I
I
I
I
O
O
O
O
I/O
I
I
I
I
O
O
O
O
20bit, R J
24bit, R J
24bit, L J
24bit, I
2
S
20bit, R J
24bit, R J
24bit, L J
24bit, I
2
S
default
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