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L3GD20H Fiches technique(PDF) 26 Page - STMicroelectronics

No de pièce L3GD20H
Description  MEMS motion sensor: three-axis digital output gyroscope
PDF  52 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L3GD20H Fiches technique(HTML) 26 Page - STMicroelectronics

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Once enabled, FIFO is filled with the Pitch, Roll and Yaw data on the rising edge of DEN
input signal. When ODR selected is 800 Hz, maximum DEN sample frequency is
f
DEN
=1/T
DEN
= 400 Hz.
Figure 16. Edge-sensitive trigger
4.3.3
Impulse sensitive trigger
Impulse sensitive trigger can be enabled by setting to ‘1’ LVLen bit into CTRL2 (21h) and
IMPen bit into CTRL4 (23h) while the EXTRen bit into CTRL2 (21h) has to be set to ‘0’.
If the duration of the DEN pulse is shorter than the selected ODR, the Impulse sensitive
trigger functionality has to be enabled.
GAMS310120131026FSR



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