AK4101 Ver la hoja de datos (PDF) - Asahi Kasei Microdevices
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AK4101 Datasheet PDF : 28 Pages
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ASAHI KASEI
[AK4101]
Audio Serial Interface
The audio serial interface is used to input audio data and consists of six pins: Bit Clock (BICK), Word Clock (LRCK) &
four Data pins (SDTI 1-4). BICK clocks in SDTI, which is doubled buffered, while LRCK indicates the particular
channel, left or right. The DIF 2-0 pins in synchronous mode and control registers in asynchronous mode select the
particular input mode. 16-24 bits are supported in the right justified and left justified modes. The I2S mode is also
supported. The AK4101 can be configured in master and slave modes.
Mode
0
1
2
3
4
5
6
7
DIF2
0
0
0
0
1
1
1
1
DIF1
0
0
1
1
0
0
1
1
DIF0
0
1
0
1
0
1
0
1
SDTI
16bit, Right justified
18bit, Right justified
20bit, Right justified
24bit, Right justified
24bit, Left justified
24bit, I2S
24bit, Left justified master mode
24bit, I2S master mode
LRCK
H/L (I)
H/L (I)
H/L (I)
H/L (I)
H/L (I)
L/H (I)
H/L (O)
L/H (O)
BICK
32fs-128fs (I)
36fs-128fs (I)
40fs-128fs (I)
48fs-128fs (I)
48fs-128fs (I)
50fs-128fs (I)
64fs (O)
64fs (O)
Table 3. Audio Data Format Modes
LRCK(i)
BICK(i)
012
15 16 17
30 31 0 1 2
15 16 17
SDTI(i)
15:MSB, 0:LSB
15 14
10
Lch Data
Figure 8. Mode 0 Timing
15 14
Rch Data
30 31 0 1
10
LRCK(i)
BICK(i)
01
8 9 10 11
30 31 0 1
8 9 10 11
30 31 0 1
SDTI(i)
23 22 21 20
10
23 22 21 20
23:MSB, 0:LSB
Lch Data
Rch Data
Figure 9. Mode 3 Timing
10
MS0076-E-01
- 15 -
2001/12
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