參數(shù)資料
型號: AK4671EG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/RCV/HP-AMP
中文描述: 立體聲編解碼器麥克風(fēng)/垃圾車/惠普腺苷
文件頁數(shù): 156/164頁
文件大?。?/td> 1792K
代理商: AK4671EG
[AK4671]
MS0666-E-00
2007/10
- 156 -
4. EXT Slave Mode
External LRCK
Input
(1)
External BICK
Input
(1)
External MCKI
Input
(1)
Example
Audio I/F Format:MSB justified(ADC & DAC)
Input MCKI frequency:1024fs
Sampling Frequency:44.1kHz
(1) Stop the external clocks
Figure 120. Clock Stopping Sequence (4)
<Example>
(1)
Stop the external MCKI, BICK and LRCK clocks.
5. EXT Master Mode
LRCK
Output
BICK
Output
External MCKI
Input
(1)
"H" or "L"
"H" or "L"
Example
Audio I/F Format:MSB justified(ADC & DAC)
Input MCKI frequency:1024fs
Sampling Frequency:44.1kHz
(1) Stop the external MCKI
Figure 121. Clock Stopping Sequence (5)
<Example>
(1)
Stop MCKI clock. BICK and LRCK are fixed to “H” or “L”.
Power down
Power supply current can be shut down (typ. 20
μ
A) by stopping clocks and setting PMVCM bit = “0” after all blocks
except for VCOM are powered-down. Power supply current can be also shut down (typ. 1
μ
A) by stopping clocks and
setting the PDN pin = “L”. When the PDN pin = “L”, the registers are initialized.
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