ak4556 AKM Semiconductor, Inc., ak4556 Datasheet - Page 15

• Manufacturer Part Number: ak4556
• Description: 3v 192khz 24bit ?? Codec
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Three modes are supported and selected by the CKS3-0 pins as shown in Table 3 and Table 4. In all modes the serial data
format is MSB first, 2’s complement. The SDTO is clocked out on the falling edge of BCLK and the SDTI is latched on
the rising edge. The audio interface supports both master and slave modes. In slave mode, BCLK and LRCK are input. In
master mode, BCLK and LRCK are output with the BCLK frequency fixed to 64fs and the LRCK frequency fixed to 1fs.
Also audio interface format is fixed to I
MS0559-E-00
* AK4552 Compatible mode
Audio Serial Interface Format
Mode
0 (*)
Mode
LJ/RJ
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
I
LJ
2
S
CKS3
pin
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
24bit, I
24bit, MSB justified
24bit, MSB justified
CKS2
pin
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
2
SDTO
S Compatible
CKS1
pin
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
2
S mode.
CKS0
pin
H
H
H
H
H
H
L
H
L
L
H
L
L
L
L
L
Table 4. Audio Interface Format
24bit, I
24bit, MSB justified
24bit, LSB justified
Table 3. Mode Setting
HPF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
2
SDTI
S Compatible
- 15 -
Master
Master
Master
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
M/S
512/768fs (Normal Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
512/768fs (Normal Speed)
512/768fs (Normal Speed)
512/768fs (Normal Speed)
512/768fs (Normal Speed)
256/384fs (Double Speed)
256/384fs (Double Speed)
256/384fs (Double Speed)
256/384fs (Double Speed)
256/384fs (Double Speed)
128/192fs (Quad Speed)
128/192fs (Quad Speed)
128/192fs (Quad Speed)
128/192fs (Quad Speed)
128/192fs (Quad Speed)
128/192fs (Quad Speed)
LRCK
512fs (Normal Speed)
256fs (Normal Speed)
256fs (Double Speed)
H/L
L/H
H/L
128fs (Quad Speed)
256/384/512/768fs
256/384/512/768fs
256/384/512/768fs
256/384/512/768fs
256/384/512/768fs
256/384/512/768fs
(Normal Speed)
(Normal Speed)
(Normal Speed)
(Normal Speed)
(Normal Speed)
(Normal Speed)
MCLK
BCLK (Slave)
≥ 48fs or 32fs
≥ 48fs
≥ 48fs
BCLK (Master)
Audio Interface
(See
Format
LJ/RJ
LJ/RJ
LJ/RJ
LJ/RJ
64fs
I
I
I
I
I
I
I
I
Table 4
LJ
LJ
LJ
LJ
2
2
2
2
2
2
2
2
-
-
S
S
S
S
S
S
S
S
[AK4556]
2006/11
)