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)： 155/164頁
文件大?。?/td> 1792K
代理商： AK4671EG
[AK4671]
MS0666-E-00
2007/10
- 155 -
■
Stop of Clock
Master clock can be stopped when ADC and DAC are not used.
1. PLL Master Mode
External MCKI
PMPLL bit
(Addr:02H, D0)
MCKO bit
(Addr:02H, D2)
Input
(2)
(1)
(1)
"1" or "0"
Example:
Audio I/F Format: MSB justified (ADC & DAC)
BICK frequency at Master Mode: 64fs
Input Master Clock Select at PLL Mode: 11.2896MHz
Sampling Frequency: 44.1kHz
(2) Stop an external MCKI
(1) Addr:02H, Data:02H
Figure 117. Clock Stopping Sequence (1)
<Example>
(1)
Power down PLL: PMPLL bit = “1”
→
“0”
Stop MCKO clock: MCKO bit = “1”
→
“0”
(2)
Stop an external MCKI clock.
2. PLL Slave (MCKI pin)
External MCKI
PMPLL bit
(Addr:02H, D0)
Input
(1)
(2)
MCKO bit
(Addr:02H, D2)
(1)
Example
Audio I/F Format: MSB justified (ADC & DAC)
PLL Reference clock: MCKI
BICK frequency: 64fs
Sampling Frequency: 44.1kHz
(1) Addr:02H, Data:00H
(2) Stop the external clocks
Figure 118. Clock Stopping Sequence (2)
<Example>
(1)
Power down PLL: PMPLL bit = “1”
→
“0”
Stop MCKO output: MCKO bit = “1”
→
“0”
(2)
Stop the external master clock.
3. PLL Slave Mode (LRCK or BICK pin)
External BICK
PMPLL bit
(Addr:02H, D0)
Input
(1)
(2)
External LRCK
Input
(2)
Example
Audio I/F Format: MSB justified (ADC & DAC)
PLL Reference clock: BICK
BICK frequency: 64fs
Sampling Frequency: 44.1kHz
(1) Addr:02H, Data:00H
(2) Stop the external clocks
Figure 119. Clock Stopping Sequence (3)
<Example>
(1)
Power down PLL: PMPLL bit = “1”
→
“0”
(2)
Stop the external BICK and LRCK clocks
相關PDF資料
PDF描述
AK4673 Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
AK4673EG Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
AK4682 Multi-channel CODEC with 2Vrms Stereo Selector
AK4682EQ Multi-channel CODEC with 2Vrms Stereo Selector
AK4683_07 Asynchronous Multi-Channel Audio CODEC with DIR/T
相關代理商/技術參數(shù)
參數(shù)描述
AK4673 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
AK4673EG 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
AK4675 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP
AK4675EG 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP
AK4682 制造商:AKM 制造商全稱:AKM 功能描述:Multi-channel CODEC with 2Vrms Stereo Selector
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