參數(shù)資料
型號: AK4673EG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
中文描述: 立體聲編解碼器麥克風/惠普- AMP及觸摸屏控制器
文件頁數(shù): 99/107頁
文件大小: 1171K
代理商: AK4673EG
[AK4673]
MS0670-E-00
2007/09
- 99 -
4.
EXT Slave Mode
(1)
Power Supply
PDN pin
PMVCM bit
(Addr:00H, D6)
(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:40H
(2) Addr:04H, Data:02H
Addr:05H, Data:00H
MCKI, BICK and LRCK input
Figure 88. Clock Set Up Sequence (4)
<Example>
(1) After Power Up: The PDN pin “L”
“H”. “L” time of 150ns or more is needed to reset the AK4673.
The AK4673 should be operated by the recommended power-up/down sequence shown in “System Design
(Grounding and Power Supply Decoupling)” to avoid pop noise at line output and headphone 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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