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STM32F479AI bảng dữ liệu(PDF) 158 Page - STMicroelectronics

tên linh kiện STM32F479AI
Giải thích chi tiết về linh kiện  ARMCortex-M4 32b MCUFPU, 225DMIPS, up to 2MB Flash/3844KB RAM, USB OTG HS/FS, Ethernet, FMC, dual Quad-SPI, Crypto, Graphical accelerator, Camera IF, LCD-TFT & MIPI DSI
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32F479AI bảng dữ liệu(HTML) 158 Page - STMicroelectronics

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Electrical characteristics
STM32F479xx
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DocID028010 Rev 3
Note:
ADC accuracy vs. negative injection current: injecting a negative current on any analog
input pins should be avoided as this significantly reduces the accuracy of the conversion
being performed on another analog input. It is recommended to add a Schottky diode (pin to
ground) to analog pins which may potentially inject negative currents.
Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in
Section 5.3.20 does not affect the ADC accuracy.
Table 80. ADC dynamic accuracy at fADC = 18 MHz - limited test conditions(1)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
ENOB
Effective number of bits
fADC =18 MHz
VDDA = VREF+= 1.7 V
Input Frequency = 20 KHz
Temperature = 25 °C
10.3
10.4
-
bits
SINAD
Signal-to-noise and distortion ratio
64
64.2
-
dB
SNR
Signal-to-noise ratio
64
65
-
THD
Total harmonic distortion
− 67
− 72
-
1. Guaranteed based on test during characterization.
Table 81. ADC dynamic accuracy at fADC = 36 MHz - limited test conditions(1)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
ENOB
Effective number of bits
fADC =36 MHz
VDDA = VREF+ = 3.3 V
Input Frequency = 20 KHz
Temperature = 25 °C
10.6
10.8
-
bits
SINAD
Signal-to noise and distortion ratio
66
67
-
dB
SNR
Signal-to noise ratio
64
68
-
THD
Total harmonic distortion
− 70
− 72
-
1. Guaranteed based on test during characterization.



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