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VD5377 Datasheet(PDF) 13 Page - STMicroelectronics

No. de pieza VD5377
Descripción Electrónicos  Ultra-low power motion sensor for optical finger navigation (OFN)
PDF  88 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VD5377 Datasheet(HTML) 13 Page - STMicroelectronics

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Doc ID 022952 Rev 2
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VD5377
Application schematics
3
Application schematics
There are two power configurations for the VD5377: a 2.2 V to 3.0 V external supply utilizing
the device’s internal 1.8 V regulator or direct drive using an externally regulated 1.8 V
supply. Typical application schematics are shown for both configurations in Figure 3 and
Figure 4.
The internal 1.8 V core regulator requires a minimum 220 nF decoupling capacitor. Larger
values may increase the minimum power down time which is required to guarantee a proper
reset of the device.
Figure 3. VTOP supply (using internal regulator)
STANDBY
POWERDOWN
VTOP
SCL
SDA
MOTION
GND
Optional I2C
Address
Navigation
LED
NC
220 nF
NC
1.8V
1.8V
I2C_SEL0
I2C_SEL1
I2C_SEL2
LED_OUT
DVSS
BACKLED0
BACKLED1
BACKLED2
DVDD
GPIO0
MOTION
TEST_CLK
SDA
2
1
3
4
5
6
7
8
9
19
20
22
23
24
SCL
10
DVSS
11
18
17
16
14
13
AVSS 25
26
AVDD
DVSS 21
12
15
VD5377



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