參數(shù)資料
型號(hào): AK4366
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Low Power 24-Bit 2ch DAC with HP-AMP
中文描述: 低功耗24位2通道DAC,具有惠普腺苷
文件頁(yè)數(shù): 13/31頁(yè)
文件大?。?/td> 266K
代理商: AK4366
ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 13 -
n
Serial Data Interface
The AK4366 interfaces with external system via the SDATA, BICK and LRCK pins. In serial mode (P/S= “L”), five data
formats are available and are selected by setting DIF2, DIF1 and DIF0 bits (Table 3). In parallel mode (P/S= “H”), two
data formats are available and are selected by setting DIF0 pin (Table 3). Mode 0 is compatible with existing 16bit DACs
and digital filters. Mode 1 is a 20bit version of Mode 0. Mode 4 is a 24bit version of Mode 0. Mode 2 is similar to AKM
ADCs and many DSP serial ports. Mode 3 is compatible with the I
2
S serial data protocol. In Modes 2 and 3 with
BICK
48fs, the following formats are also valid: 16-bit data followed by eight zeros (17th to 24th bits) and 20-bit data
followed by four zeros (21st to 24th bits). In all modes, the serial data is MSB first and 2’s complement format.
DIF2 bit
DIF1 bit
DIF0 bit
MODE
0
0
0
0: 16bit, LSB justified
0
0
1
1: 20bit, LSB justified
0
1
0
2: 24bit, MSB justified
0
1
1
3: I
2
S Compatible
1
0
0
4: 24bit, LSB justified
Table 3. Audio Data Format (Serial Mode)
DIF0 pin
MODE
L
2: 24bit, MSB justified
H
3: I
2
S Compatible
BICK=32fs or 48fs
BICK
64fs
Table 4. Audio Data Format (Parallel Mode)
LRCK
BICK
Figure
Figure 9
Figure 10
Figure 11
Figure 12
Figure 10
32fs
BICK
64fs
40fs
BICK
64fs
48fs
BICK
64fs
BICK=32fs or 48fs
BICK
64fs
48fs
BICK
64fs
BICK
Figure
Figure 11
Figure 12
48fs
BICK
64fs
SDATA
Mode 0
BICK
(32fs)
SDATA
Mode 0
15 14
6
5
4
BICK
3
2
1
0
15 14
15 14
0
15 14
0
Don’t care
Don’t care
15:MSB, 0:LSB
15 14
6
5
4
3
2
1
0
Lch Data
Rch Data
Figure 9. Mode 0 Timing
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