ak4352 AKM Semiconductor, Inc., ak4352 Datasheet - Page 8

• Manufacturer Part Number: ak4352
• Description: 2v & Low Power Multi-bit Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
M0040-E-02
SDATA
BICK
LRCK
SDATA
n Audio Serial Interface Format
The AK4352 interfaces with external system by using SDATA, BICK and LRCK pins. Four types of data format are
available and one of them is selected by setting DIF0 and DIF1. Format 0 is compatible with existing 16bit DACs and
digital filters. Format 1 is an 18bit version of format 0. Format 2 is similar to AKM ADCs and many DSP serial ports.
Format 3 is compatible with the I
be input. In all modes, the serial data is MSB first and 2’s complement format.
SDATA
SDATA
Mode 1
Mode 0
LRCK
BICK
16bit
18bit
DIF1
0
0
1
1
15
Don’t care
17:MSB, 0:LSB (@18bit Data)
15:MSB, 0:LSB (@16bit Data)
Don’t care
17
14
16
DIF0
0
1
0
1
Lch
Lch
17
2
1
3
S serial data protocol. In format 2 and 3, 16bit data followed by two zeros also could
16
0
2
2: 18bit MSB Justified
0: 16bit LSB Justified
1: 18bit LSB Justified
15
Table 2. Digital Input Formats
15
3: I
1
Figure 2. Mode 0,1 Timing
Figure 3. Mode 2 Timing
2
14
14
S Compatible
0
Mode
Don’t
care
Don’t
care
- 8 -
0
0
Don’t care
Don’t care
15
17
*Mode 1: BICK needs 36fs or more than 36fs.
14
16
32fs or 36fs
BICK
32fs
36fs
36fs
Rch
* BICK needs 36fs or more than 36fs.
17
1
3
Rch
16
0
2
15
15
1
14
14
0
Figure 2
Figure 2
Figure 3
Figure 4
Don’t
care
Don’t
care
Figure
0
0
15
17
[AK4352]
2000/11
14
16