ak4564 AKM Semiconductor, Inc., ak4564 Datasheet - Page 15

• Manufacturer Part Number: ak4564
• Description: 16bit Codec With Built-in Alc And Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Audio Serial Interface Format
The SDTI, SDTO, BCLK and LRCK pins are connected to an external controller. The audio data format has four modes,
MSB-first and 2’s compliment. The data format is set by the DIF1-0 bits. SDTI is latched by “ ” of BCLK. SDTO is
latched by “ ”.
When DIF1= “0” and DIF0=”1”, only BCLK=64fs is acceptable.
MS0140-E-01
BCLK(32fs)
SDTO(o)
SDTI(i)
BCLK(64fs)
SDTO(o)
SDTI(i)
LRCK
BCLK(64fs)
SDTO(o)
SDTI(i)
LRCK
No.
0
1
2
3
DIF1 bit
0
0
1
1
0
0
0
15:MSB, 0:LSB
15
15
15:MSB, 0:LSB
1
1
1
14
14
Don’t Care
DIF0 bit
2
2
Don’t Care
2
13
13
15
3
3
0
1
0
1
8
13
8
15
7
2
9
14
Lch Data
16
Lch Data
15
15
6
1
10
15
17
I
MSB justified
MSB justified
SDTO(ADC)
LSB justified
Figure 8. Audio Data Timing (No.0)
Figure 9. Audio Data Timing (No.1)
2
14
14
5
0
S compatible
11
16
18
Table 1. Audio Data Format
15 14
13
13 12
4
12
17
19
12
3
13
18
20
2
4
14
- 15 -
1
1
1
1
15
31
31
0
0
0
0
I
MSB justified
0
0
LSB justified
LSB justified
2
0
SDTI(DAC)
S compatible
15 14
15 14
1
1
1
Don’t Care
2
2
2
13
13
15
Don’t Care
3
3
8
1
8
15
7
2
9
14
Rch Data
BCLK
= 64fs
16
Rch Data
15
15
6
1
32fs
32fs
32fs
10
15
17
14 13
14
5
0
11
16
18
15 14
13 12
4
Figure 10
Figure 11
12
17
Figure 8
Figure 9
19
Figure
3
12
13
18
20
2
14
1
1
1
1
15
31
31
RESET
[AK4564]
0
0
0
0
2002/07
0
0
0
15
15
15
1
1
1