參數(shù)資料
型號: 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/垃圾車/惠普腺苷
文件頁數(shù): 46/164頁
文件大小: 1792K
代理商: AK4671
[AK4671]
MS0666-E-00
2007/10
- 46 -
PLL Master Mode (PMPLL bit = “1”, M/S bit = “1”)
When an external clock (11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz, 19.2MHz, 24MHz, 26MHz or 27MHz)
is input to the MCKI pin, the MCKO, BICK and LRCK clocks are generated by an internal PLL circuit. The MCKO
output frequency is selected by PS1-0 bits (
Table 9
) and the output is enabled by MCKO bit. The BICK output frequency
is selected between 32fs or 64fs, by BCKO bit (
Table 10
).
AK4671
DSP or
μ
P
MCKO
BICK
LRCK
SDTO
SDTI
BCLK
LRCK
SDTI
SDTO
MCKI
1fs
32fs, 64fs
256fs/128fs/64fs/32fs
11.2896MHz, 12MHz, 12.288MHz, 13MHz,
13.5MHz, 19.2MHz, 24MHz, 26MHz,
27MHz
MCLK
Figure 39. PLL Master Mode
Mode
0
1
2
3
Table 9. MCKO Output Frequency (PLL Mode, MCKO bit = “1”)
PS1 bit
0
0
1
1
PS0 bit
0
1
0
1
MCKO pin
256fs
128fs
64fs
32fs
(default)
BCKO bit
BICK Output
Frequency
32fs
64fs
0
1
(default)
Table 10. BICK Output Frequency at Master Mode
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