參數(shù)資料
型號(hào)： AK4671
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)： 43/164頁
文件大?。?/td> 1792K
代理商： AK4671
[AK4671]
MS0666-E-00
2007/10
- 43 -
OPERATION OVERVIEW
■
System Clock (Audio I/F)
There are the following five clock modes to interface with external devices. (
Table 1
and
Table 2
)
Mode
PLL Master Mode (
Note 60
)
PLL Slave Mode 1
(PLL Reference Clock: MCKI pin)
PLL Slave Mode 2
(PLL Reference Clock: LRCK or BICK pin)
EXT Slave Mode
EXT Master Mode
Note 60. If M/S bit = “1”, PMPLL bit = “0” and MCKO bit = “1” during the setting of PLL Master Mode, the invalid
clocks are output from MCKO pin when MCKO bit is “1”.
Table 1. Clock Mode Setting (x: Don’t care)
Mode
MCKO bit
0
PLL Master Mode
1
PMPLL bit
1
M/S bit
1
PLL3-0 bits
See
Table 4
Figure
Figure 39
1
0
See
Table 4
Figure 40
1
0
See
Table 4
Figure 41
Figure 42
Figure 43
Figure 44
0
0
0
1
x
x
MCKO pin
L
Selected by
PS1-0 bits
L
Selected by
PS1-0 bits
MCKI pin
BICK pin
Output
(Selected by
BCKO bit)
LRCK pin
Selected by
PLL3-0 bits
Output
(1fs)
0
PLL Slave Mode
(PLL Reference Clock: MCKI pin)
1
Selected by
PLL3-0 bits
Input
(
≥
32fs)
Input
(1fs)
PLL Slave Mode
(PLL Reference Clock: LRCK or BICK pin)
0
L
GND
Input
(Selected by
PLL3-0 bits)
Input
(
≥
32fs)
Output
(Selected by
BCKO bit)
Input
(1fs)
EXT Slave Mode
0
L
Selected by
FS1-0 bits
Input
(1fs)
EXT Master Mode
0
L
Selected by
FS1-0 bits
Output
(1fs)
Table 2. Clock pins state in Clock Mode
■
Master Mode/Slave Mode
The M/S bit selects either master or slave mode. M/S bit = “1” selects master mode and “0” selects slave mode. When the
AK4671 is power-down mode (PDN pin = “L”) and exits reset state, the AK4671 is slave mode. After exiting reset state,
the AK4671 goes to master mode by changing M/S bit = “1”.
When the AK4671 is used by master mode, LRCK and BICK pins are a Hi-Z state until M/S bit becomes “1”. LRCK and
BICK pins of the AK4671 should be pulled-down or pulled-up by the resistor (about 100k
Ω
) externally to avoid the
floating state.
M/S bit
Mode
0
Slave Mode
1
Master Mode
Table 3. Select Master/Slave Mode
(default)
相關(guān)PDF資料
PDF描述
AK4671EG Stereo CODEC with MIC/RCV/HP-AMP
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4671_10 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP-AMP
AK4671EG 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP-AMP
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
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