AK4524VF Asahi Kasei Microsystems, AK4524VF Datasheet - Page 13

• Manufacturer Part Number: AK4524VF
• Description: 24BIT 96KHZ AUDIO CODEC
• Manufacturer: Asahi Kasei Microsystems

ASAHI KASEI
n Audio Serial Interface Format
Five serial modes selected by the DIF0 and DIF1 pins are supported as shown in Table 4. In all modes the serial data has
MSB first, 2’s compliment format. The SDTO is clocked out on the falling edge of BICK and the SDTI is latched on the
rising edge. The interface supports both master mode and slave mode. In master mode, BICK and LRCK are outputs and
the frequency of BICK is fixed to 64fs.
M0050-E-01
Mode
BICK(64fs)
SDTO(o)
SDTI(i)
BICK(32fs)
SDTO(o)
SDTI(i)
BICK(64fs)
SDTO(o)
SDTI(i)
0
1
2
3
4
LRCK
LRCK
DIF2
0
0
0
0
1
0
0
0
SDTO-23:MSB, 0:LSB; SDTI-19:MSB, 0:LSB
23
SDTO-19:MSB, 0:LSB; SDTI-15:MSB, 0:LSB
23
15 14 13
23
Don’t Care
Don’t Care
1
1
1
DIF1
22
22
22
0
0
1
1
0
2
2
2
21
21
3
3
12 11 10
12
DIF0
19
15 14
15
0
1
0
1
0
7
7
13
Lch Data
17
Lch Data
9
18
14
6
6
14
10
18
13
13
5
5
24bit, MSB justified
24bit, MSB justified
24bit, MSB justified
24bit, MSB justified
11
19
24bit, IIS (I2S)
0
8
Table 4. Audio data format
12
12 11
4
4
Figure 1. Mode 0 Timing
Figure 2. Mode 1 Timing
24
12
20
7
11 10
SDTO
3
3
25
13
2
2
14
30
- 13 -
1
1
1
9
31
15
31
0
8
0
0
0
0
0
23 22
23 22
15
23 22
Don’t Care
Don’t Care
1
24bit, MSB justified
1
1
16bit, LSB justified
20bit, LSB justified
24bit, LSB justified
14 13
24bit, IIS (I2S)
2
2
2
21
21
SDTI
3
12 11 10
12
19
15
15 14
7
7
13
Rch Data
17
Rch Data
9
18
14
6
6
14
10
18
13
13
5
5
11
19
LRCK
0
8
12
12 11
H/L
H/L
L/H
H/L
H/L
4
4
24
12
20
11
7
3
3
25
13
10
2
2
³ 32fs
³ 40fs
³ 48fs
³ 48fs
³ 48fs
BICK
14
1
9
1
1
31
15
31
[AK4524]
0
8
0
0
0
at reset
0
0
1999/5
23
23
15
23
1
1
1