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I3G4250D Datasheet(PDF) 20 Page - STMicroelectronics

Part # I3G4250D
Description  3-axis digital output gyroscope
PDF  43 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

I3G4250D Datasheet(HTML) 20 Page - STMicroelectronics

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I3G4250D
20/43
DocID027628 Rev 2
4
Application hints
Figure 11. I3G4250D electrical connections and external component values
Power supply decoupling capacitors (100 nF ceramic or polyester +10 μF) should be placed
as near as possible to the device (common design practice).
If Vdd and Vdd_IO are not connected together, power supply decoupling capacitors
(100 nF and 10 μF between Vdd and common ground, 100 nF between Vdd_IO and
common ground) should be placed as near as possible to the device (common design
practice).
The I3G4250D IC includes a PLL (phase-locked loop) circuit to synchronize driving and
sensing interfaces. Capacitors and resistors must be connected to the PLLFILT pin (as
shown in Figure 11) to implement a second-order low-pass filter. Table 10 summarizes the
PLL low-pass filter component values.
Table 10. PLL low-pass filter component values
Component
Value
C1
10 nF ± 10%
C2
470 nF ± 10%
R2
10 k
 ± 10%



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