參數(shù)資料
型號: AK4126VQ
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 6ch 192kHz / 24-Bit Asynchronous SRC
中文描述: 6通道192kHz的/ 24位異步鋼骨混凝土
文件頁數(shù): 13/27頁
文件大?。?/td> 241K
代理商: AK4126VQ
ASAHI KASEI
[AK4126]
MS0544-E-00
2006/09
- 13 -
OPERATION OVERVIEW
System Clock & Audio Interface Format for Input PORT
The input port works in slave mode. The clocks supply ILRCK and IBICK externally. An internal system clock is created
by the internal PLL using ILRCK (Mode 0
2 of Table 2) or IBICK (Mode 4, 5, 7of Table 2). The PLL2-0 pins and
IDIF2-0 pins select the PLL mode. The PLL2-0 pins and IDIF2-0 pins should be controlled when PDN pin = “L”.
The IDIF2-0 pins select the audio interface format for the input port. The audio data is MSB first, 2’s complement format.
The SDTI is latched on the rising edge of IBICK. Select the audio interface format when PDN pin = “L”. The audio
interface format of SDTI1, SDTI2 and SDTI3 becomes the same setting. The maximum input frequency of IBICK is 64fsi.
Mode
IDIF2 IDIF1 IDIF0
0
L
L
L
16bit, LSB justified
1
L
L
H
20bit, LSB justified
2
L
H
L
24/20bit, MSB justified
3
L
H
H
24/16bit, I
2
S Compatible
4
H
L
L
24bit, LSB justified
5
H
L
H
6
H
H
L
7
H
H
H
Table 1. Input Audio Interface Format (Input PORT)
SDTI Format
IBICK Frequency
32fsi
40fsi
48fsi
48fsi or 32fsi
48fsi
Reserved
Reserved
Reserved
Mode
PLL2
PLL1
PLL0
ILRCK Freq
IBICK Freq
SMUTE
(Note 14)
0
1
L
L
L
L
L
H
8k
96kHz
8k
192kHz
16k
192kHz
(Note 11)
Manual
2
L
H
L
Depending on
IDIF2-0
(Note 12)
Semi-Auto
3
4
5
6
L
H
H
H
H
L
L
H
H
L
H
L
Reserved
32fsi (Note 13)
64fsi
Reserved
8k
192kHz
(Note 12)
8k
192kHz
(Note 12)
Manual
7
H
H
H
64fsi
Semi-Auto
Note 11. PLL lock rage is changed by the value of R and C connected FILT pin. Refer to “PLL Loop Filter”.
Note 12. The IBCIK must be continuous except when the clocks are changed.
Note 13. IBCIK = 32fsi is supported only 16bit LSB justified and I
2
S Compatible.
Note 14. Refer to “Soft Mute Operation” for Manual mode and Semi-Auto mode.
Table 2. PLL Setting (Input PORT)
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