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STM32F730V8 bảng dữ liệu(PDF) 125 Page - STMicroelectronics

tên linh kiện STM32F730V8
Giải thích chi tiết về linh kiện  Arm® Cortex®-M7 32b MCUFPU, 462DMIPS, 64KB Flash /256164KB RAM, USB OTG HS/FS, 18 TIMs, 3 ADCs, 21 com IF
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32F730V8 bảng dữ liệu(HTML) 125 Page - STMicroelectronics

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DS12536 Rev 2
125/202
STM32F730x8
Electrical characteristics
185
An amplitude quantization error may be generated because the linear modulation profile is
obtained by taking the quantized values (rounded to the nearest integer) of MODPER and
INCSTEP. As a result, the achieved modulation depth is quantized. The percentage
quantized modulation depth is given by the following formula:
As a result:
Figure 34 and Figure 35 show the main PLL output clock waveforms in center spread and
down spread modes, where:
F0 is fPLL_OUT nominal.
Tmode is the modulation period.
md is the modulation depth.
Figure 34. PLL output clock waveforms in center spread mode
Figure 35. PLL output clock waveforms in down spread mode
mdquantized%
MODEPER INCSTEP
×
100
×
5
×
()
2
15
1
–
() PLLN
×
()
⁄
=
mdquantized%
250 126
×
100
×
5
×
()
2
15
1
–
() 240
×
()
⁄
2.002%(peak)
==
Frequency (PLL_OUT)
Time
F0
tmode
2xtmode
md
ai17291
md
Frequency (PLL_OUT)
Time
F0
tmode
2xtmode
2xmd
ai17292b



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