ak4683 AKM Semiconductor, Inc., ak4683 Datasheet - Page 33

• Manufacturer Part Number: ak4683
• Description: Asynchronous Multi-channel Audio Codec With Dir/t
• Manufacturer: AKM Semiconductor, Inc.

MS0427-E-02
1-2. TDM 256 mode: TDMA1-0 bit = “01”
1-3. TDM 128 mode: TDMA1-0 bit = “11”
Mode
Mode
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.
10
11
12
13
14
15
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.
16
17
18
19
20
21
22
23
8
9
Master
Master
Master
Master
Master
Table 32. Audio Interface Format (TDM 256 mode, L J: Left justified, R J: Right justified.)
Table 33. Audio Interface Format (TDM 128 mode, L J: Left justified, R J: Right justified.)
Master
Master
Master
Master
Master
/slave
Slave
Slave
Slave
Slave
/slave
Slave
Slave
Slave
Slave
DIFA1
DIFA1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DIFA0
DIFA0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
0
1
24bit, L J
24bit, L J
24bit, L J
24bit, I
24bit, L J
24bit, L J
24bit, L J
24bit, I
SDTOA
24bit, L J
24bit, L J
24bit, L J
24bit, I
24bit, L J
24bit, L J
24bit, L J
24bit, I
SDTOA
2
2
- 33 -
S
S
2
2
S
S
SDTIA1-3
20bit, R J
24bit, R J
20bit, R J
24bit, R J
24bit, L J
24bit, I
24bit, L J
24bit, I
SDTIA1-3
20bit, R J
24bit, R J
20bit, R J
24bit, R J
24bit, L J
24bit, I
24bit, L J
24bit, I
2
2
S
S
2
2
S
S
↑
↑
↑
↓
↑
↑
↑
↓
LRCKA
LRCKA
↑
↑
↑
↓
↑
↑
↑
↓
I/O
O
O
O
O
I/O
I
I
I
I
O
O
O
O
I
I
I
I
256fs
256fs
256fs
256fs
256fs
256fs
256fs
256fs
128fs
128fs
128fs
128fs
128fs
128fs
128fs
128fs
BICKA
BICKA
I/O
I/O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
(default)
(default)
[AK4683]
2007/04