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STA321MPL1 数据表(PDF) 25 Page - STMicroelectronics

部件名 STA321MPL1
功能描述  Scalable digital microphone processor
PDF  80 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA321MPL1 数据表(HTML) 25 Page - STMicroelectronics

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STA321MPL1
Registers
80
cos [1,0] sets the clock out value. Clock out frequency is a ratio of the internal clock and the
ratio depends on the cos[1,0] setting.
Example cos[1,0] = 10:
XTI = 12.288
PLL output = 98.304 MHz
CK_out = 98.304/8 = 12.288
Clock out is automatically configured to obtain a frequency of 64 Fs (sys_clock/32) if the bit0
of the register 0x5D is asserted. This generates a valid clock to be provided to a digital
(PDM) microphone.
COS [1,0]
CKOUT frequency
00
PLL output
01
PLL output / 4
10
PLL output / 8
11
PLL output / 16



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