參數(shù)資料
型號(hào): AK4683EQ
廠商: ASAHI KASEI POWER DEVICES CORP
元件分類: 消費(fèi)家電
英文描述: Asynchronous Multi-Channel Audio CODEC with DIR/T
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-64
文件頁數(shù): 22/84頁
文件大?。?/td> 1077K
代理商: AK4683EQ
[AK4683]
MS0427-E-02
2007/04
- 22 -
Master Clock Output
The AK4683 has one master clock output pin. The clock source can be selected from the three clocks (recovered clock
from DIR (RMCLK), X’tal clock (XTI) and external clock (MCLK2)). When the DIR is powered-down or unlocked
state at CM1/0 bit = “10”, the CLKDT bit selects the clock source. The OCKS1/0 bits select the clock speed. The 512fs
at fs=96kHz, 256fs/512fs at fs=192kHz are not available.
CM1 bit
CM0 bit
UNLOCK
0
0
0
1
Clock Source
RMCLK
EXTCLK
RMCLK
EXTCLK
EXTCLK
-
-
0
1
-
1
0
1
1
Table 1. Clock Mode Control
CLKDT bit
Clock Source
0
1
XTI
MCLK2
Default
Table 2. EXTCLK Control
OCKS0 bit
MCLKO(RMCLK)
0
1
0
1
OCKS1 bit
0
0
1
1
fs (max)
96 kHz
96 kHz
48 kHz
192 kHz
256fs
256fs
512fs
128fs
Table 3. MCLKO Speed
MCKO0 bit
0
1
0
1
MCKO1 bit
0
0
1
1
MCKO Clock Source
DIR
X’tal(XTI)
MCLK2
Reserved
default
Table 4. MCKO Clock Source Control
X’tal
Oscillator
(XTI)
MCKO
PLL
MCLK2
MCKO0/1 bit
DIR
XTI
MCLK2
CKSDT bit
x2/3
CM0/1 bit
CLKDT bit
OCKS1/0 bit
RMCLK
EXTCLK
Figure 7. MCKO Clock
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