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AK4642VN Datasheet, PDF (23/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP | |||
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ASAHI KASEI
[AK4642]
ػೳàªà»
 γεÏÏΫϩοΫ
Ö෦ͱͷI/FÏÊÏ
͸ÒԼͷ4௨ÎÍ·à¹à¹ÍÍÎÎ͢ɻ(See Table 1 and Table 2.)
Mode
PMPLL bit
M/S bit
PLL3-0 bits
Figure
PLL Master Mode
1
1
See Table 4
Figure 13
PLL Slave Mode 1
(PLL Reference Clock: MCKI pin)
1
0
See Table 4
Figure 14
PLL Slave Mode 2
(PLL Reference Clock: LRCK or BICK pin)
1
EXT Slave Mode
0
0
See Table 4
Figure 15
0
x
Figure 16
Donât Care (Note 38)
0
1
x
-
Note 38. ΫϩοΫÏÊÏ
àªà°Í·à±ß¹à§ÉºÍÍ·ÏÊÏ
Î௨ա͢ÎÛ ØͰ͸ɺMCKO bit = â1âͷͱÍMCKO pinÍ
Îà©à§Í°Í³Íप೾਺ͷΫϩοΫÍà¥à¾ÍÎÎ͢ɻ
Table 1. Clock Mode Setting (x: Donât care)
Mode
PLL Master Mode
PLL Slave Mode
(PLL Reference Clock: MCKI pin)
MCKO bit
0
1
0
1
MCKO pin
âLâ
PS1-0 bits
Ͱબà
âLâ
PS1-0 bits
Ͱબà
MCKI pin
PLL3-0 bits
Ͱબà
PLL3-0 bits
Ͱબà
PLL Slave Mode
(PLL Reference Clock: LRCK or BICK pin)
0
âLâ
GND
EXT Slave Mode
0
âLâ
FS3-0 bits
Ͱબà
Table 2. Clock pins state in Clock Mode
BICK pin
Output
(BCKO bit
Ͱબà)
Input
(BCKO bit
Ͱબà)
Input
(BCKO bit
Ͱબà)
Input
(⥠32fs)
LRCK pin
Output
(1fs)
Input
(1fs)
Input
(1fs)
Input
(1fs)
 ÏελÏÊÏ
ͱεϨÊÏÏÊÏ
ͷ੾ÎସÍ
ÏελÏÊÏ
ͱεϨÊÏÏÊÏ
ͷ੾ÎସÍ͸M/S bitͰߦÍÎ͢ɻâ1âÍ°ÏελÏÊÏ
ɺâ0âͰεϨÊÏÏÊÏ
Ͱ͢ɻAK4642͸ÏÏ«Êμ΢ϯ࣠(PDN pin = âLâ)ɺͼٴÏÏ«Êμ΢ϯղà¦Þ͸εϨÊÏÏÊÏ
Ͱ͢ɻÏÏ«Ê
μ΢ϯղà¦ÞɺM/S bitÎ â1âʹมßÍ¢ÎÍͱͰÏελÏÊÏ
ʹͳÎÎ͢ɻ
ÏελÏÊÏ
Í°à¢à¼»Í¢Îà§ß¹ÉºM/S bitÍ´ â1âÍॻÍà ÎÎÎÎͰɺAK4642Í·LRCK, BICK pin͸ÏÏ©ÊÏÎϯ
άͷà§à¬¶Í°Í¢É»Í¦Í·Í¨ÎɺAK4642Í·LRCK, BICK pinÍ´100kâ¦à°à±Í·ÏϧÎοÏÍÎÍ͸Ïϧμ΢ϯà°ß
Îà³
ÎÎà¶à½ÍÍÎÎ͢ɻ
M/S bit
Mode
0
Slave Mode
1
Master Mode
Table 3. Select Master/Salve Mode
Default
MS0358-J-02
- 23 -
2005/04
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