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): 48/164頁
文件大?。?/td> 1792K
代理商: AK4671
[AK4671]
MS0666-E-00
2007/10
- 48 -
b) PLL reference clock: BICK or LRCK pin
Sampling frequency corresponds to 8kHz to 48kHz by changing FS3-0 bits (
Table 6
).
AK4671
DSP or
μ
P
MCKI
BICK
LRCK
SDTO
SDTI
BCLK
LRCK
SDTI
SDTO
MCKO
1fs
32fs or 64fs
Figure 41. PLL Slave Mode 2 (PLL Reference Clock: BICK pin)
AK4671
DSP or
μ
P
MCKI
BICK
LRCK
SDTO
SDTI
BCLK
LRCK
SDTI
SDTO
MCKO
1fs
32fs
Figure 42. PLL Slave Mode 2 (PLL Reference Clock: LRCK pin)
MCKI should always be present whenever the ADC or DAC is in operation (PMADL bit = “1”, PMADR bit = “1”,
PMDAL bit = “1” or PMDAR bit = “1”). If MCKI is not provided, the AK4671 may draw excess current and it is not
possible to operate properly because utilizes dynamic refreshed logic internally. If MCKI is not present, the ADC and
DAC should be in the power-down mode (PMADL=PMADR=PMDAL=PMDAR bits = “0”).
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