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): 66/69頁
文件大?。?/td> 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 66 -
ADC, DAC, ALC1, ALC2, IPGA
3. PLL
MCKPD bit
(Addr:01H, D2)
External MCKI
PMPLL bit
(Addr:01H, D0)
MCKO bit
(Addr:01H, D1)
Input
(4)
(1)
(2)
(3)
"H" or "L"
Example:
Audio I/F Format: DSP Mode, BCKP = MSBS = “0”
BICK frequency at Master Mode : 64fs
Input Master Clock Select at PLL Mode : 11.2896MHz
Sampling Frequency:8kHz
Stop an external MCKI
(1) (2) (3) Addr:01H, Data:0CH
Figure 52. Clock Stopping Sequence (1)
<
>
(1) PLL
(2) MCKO
(3) MCKI pin
: PMPLL bit = “1”
“0”
: MCKO bit = “1”
“0”
: MCKPD bit = “0”
“1”
MCKI pin
Hi-Z
MCKI pin
(4)
4. PLL,
(FCK, BICK pin)
External BICK
PMPLL bit
(Addr:01H, D0)
Input
(1)
(2)
External FCK
Input
(2)
Example
Audio I/F Format : DSP Mode, BCKP = MSBS = “0”
PLL Reference clock: BICK
BICK frequency: 64fs
Sampling Frequency: 8kHz
(1) Addr:01H, Data:04H
(2) Stop the external clocks
Figure 53. Clock Stopping Sequence (2)
<
>
(1) PLL
(2)
: PMPLL bit = “1”
“0”
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