參數(shù)資料
型號: AK4631
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述: 16位單聲道編解碼器ALC的
文件頁數(shù): 67/69頁
文件大?。?/td> 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 67 -
5. PLL
(MCKI pin)
External MCKI
PMPLL bit
(Addr:01H, D0)
Input
(1)
(2)
MCKO bit
(Addr:01H, D1)
(1)
MCKPD bit
(Addr:01H, D2)
(1)
Example
Audio I/F Format : DSP Mode, BCKP = MSBS = “0”
PLL Reference clock: MCKI
BICK frequency: 64fs
Sampling Frequency: 8kHz
(1) Addr:01H, Data:04H
(2) Stop the external clocks
Figure 54. Clock Stopping Sequence (3)
<
>
(1) PLL
: PMPLL bit = “1”
“0”
: MCKO bit = “1”
“0”
: MCKPD bit = “0”
“1”
MCKO
MCKI pin
MCKI pin
Hi-Z
MCKI pin
(2)
6.
MCKPD bit
(Addr:01H, D2)
External FCK
Input
(2)
(1)
External BICK
Input
(2)
External MCKI
Input
(2)
Example
Audio I/F Format :MSB justified(ADC and DAC)
Input MCKI frequency:1024fs
Sampling Frequency:8kHz
(2) Stop the external clocks
(1) Addr:01H, Data:04H
Figure 55. Clock Stopping Sequence (4)
<
>
(1) MCKI pin
: MCKPD bit = “0”
“1”
Hi-Z
MCKI pin
MCKI pin
(2)
VCOM
PDN pin = “L”
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