參數(shù)資料
型號(hào)： AK4120
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： Sample Rate Converter with Mixer and Volume
中文描述： 采樣率轉(zhuǎn)換器與調(diào)音臺(tái)和卷
文件頁數(shù)： 18/30頁
文件大?。?/td> 259K
代理商： AK4120
ASAHI KASEI
[AK4120]
MS0134-E-00
2002/1
- 18 -
n
Audio Serial Interface Format
Four serial data modes can be selected by the I2S pin and D5-D0 bits in register 00H as shown in Table 6
～
8. In all
modes the serial audio data is MSB-first, 2’s compliment format. The SDTO is clocked out on the falling edge of
BICKO and the SDTI1 and SDTI2 are latched on the rising edge of BICKI1 and BICKI2.
I2S pin
DIFI11
DIFI10
L
0
0
20bit, MSB justified
L
0
1
20bit, I
2
S
L
1
0
20bit, LSB justified
L
1
1
16bit, LSB justified
H
X
X
20bit, I
2
S
Table 6. Audio data formats for Input#1 port
I2S pin
DIFI21
DIFI20
L
0
0
20bit, MSB justified
L
0
1
20bit, I
2
S
L
1
0
20bit, LSB justified
L
1
1
16bit, LSB justified
H
X
X
20bit, I
2
S
Table 7. Audio data formats for Input#2 port
I2S pin
DIFO1
DIFO0
L
0
0
20bit, MSB justified
L
0
1
20bit, I
2
S
L
1
0
20bit, LSB justified
L
1
1
16bit, LSB justified
H
X
X
20bit, I
2
S
Table 8. Audio data formats for Output port
Note: When the Audio Serial Interface Mode is changed, the AK4120 should be powered down using the PW bit.
(“PW”=0)
SDTI1
LRCK
H/L
L/H
H/L
H/L
L/H
Default
SDTI2
LRCK
H/L
L/H
H/L
H/L
L/H
Default
SDTO
LRCK
H/L
L/H
H/L
H/L
L/H
Default
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