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): 28/107頁
文件大?。?/td> 1171K
代理商: AK4673EG
[AK4673]
MS0670-E-00
2007/09
- 28 -
PLL Mode (AIN3 bit = “0”, PMPLL bit = “1”)
When PMPLL bit is “1”, a fully integrated analog phase locked loop (PLL) generates a clock that is selected by the
PLL3-0 and FS3-0 bits. The PLL lock time, when the AK4673 is supplied stable clocks after PLL is powered-up (PMPLL
bit = “0”
“1”) or sampling frequency changes is shown in
Table 5
. When AIN3 bit = “1”, the PLL is not available.
1) Setting of PLL Mode
R and C of
VCOC pin
R[
Ω
]
6.8k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
Mode
PLL3
bit
PLL2
bit
PLL1
bit
PLL0
bit
PLL Reference
Clock Input Pin
Input
Frequency
C[F]
220n
4.7n
10n
4.7n
10n
4.7n
4.7n
4.7n
4.7n
4.7n
10n
10n
220n
220n
PLL Lock
Time
(max)
160ms
2ms
4ms
2ms
4ms
40ms
40ms
40ms
40ms
40ms
40ms
40ms
60ms
60ms
0
2
3
4
5
6
7
8
12
13
14
15
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
0
1
1
1
1
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
0
1
0
1
0
0
1
0
1
LRCK pin
BICK pin
BICK pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
N/A
1fs
32fs
64fs
(default)
11.2896MHz
12.288MHz
12MHz
24MHz
19.2MHz
13.5MHz
27MHz
13MHz
26MHz
Others
Others
Table 5. Setting of PLL Mode (*fs: Sampling Frequency, N/A: Not available)
2) Setting of sampling frequency in PLL Mode
When PLL reference clock input is MCKI pin, the sampling frequency is selected by FS3-0 bits as defined in
Table 6
.
Mode
FS3 bit
FS2 bit
FS1 bit
0
0
0
0
1
0
0
0
2
0
0
1
3
0
0
1
4
0
1
0
5
0
1
0
6
0
1
1
7
0
1
1
10
1
0
1
11
1
0
1
14
1
1
1
15
1
1
1
Others
Others
Table 6. Setting of Sampling Frequency at PMPLL bit = “1” (Reference Clock = MCKI pin) (N/A: Not available)
FS0 bit
0
1
0
1
0
1
0
1
0
1
0
1
Sampling Frequency
8kHz
12kHz
16kHz
24kHz
7.35kHz
11.025kHz
14.7kHz
22.05kHz
32kHz
48kHz
29.4kHz
44.1kHz
N/A
(default)
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