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/垃圾車/惠普腺苷
文件頁數(shù): 150/164頁
文件大?。?/td> 1792K
代理商: AK4671EG
[AK4671]
MS0666-E-00
2007/10
- 150 -
4.
EXT Slave Mode
(1)
Power Supply
PDN pin
PMVCM bit
(Addr:00H, D0)
(2)
(3)
LRCK pin
BICK pin
(4)
Input
(4)
MCKI pin
Input
Example:
Audio I/F Format: MSB justified (ADC and DAC)
Input MCKI frequency: 256fs
Sampling Frequency: 44.1kHz
MCKO: Disable
(1) Power Supply & PDN pin = “L”
“H”
(3) Addr:00H, Data:01H
(2) Addr:03H, Data:02H
Addr:01H, Data:00H
MCKI, BICK and LRCK input
Figure 112. Clock Set Up Sequence (4)
<Example>
(1)
After Power Up, PDN pin = “L”
“H”. “L” time of 150ns or more is needed to reset the AK4671.
The AK4671 should be operated as the recommended power-up/down sequence shown in “System Design
(Grounding and Power Supply Decoupling)” to avoid pop noise at the receiver output, headphone output and
lineout output.
(2)
DIF1-0 and FS1-0 bits should be set during this period.
(3)
Power Up VCOM: PMVCM bit = “0”
“1”
VCOM should first be powered up before the other block operates.
(4)
Normal operation starts after the MCKI, LRCK and BICK are supplied.
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