參數(shù)資料
型號: AK4648EC
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP/SPK-AMP
中文描述: 立體聲編解碼器麥克風/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 116/119頁
文件大小: 1272K
代理商: AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 116 -
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 84. 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 85. 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. 1
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 PDN pin = “L”. When PDN pin = “L”, the registers are initialized.
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