PAW3212DB-TJDT Datasheet, PDF (3/31 Pages) Pixart Imaging Inc. – ULTRA LOW POWER WIRELESS MOUSE SENSOR

PAW3212DB-TJDT
2. Pin Descriptions and Sensor Orientation
Pin Descriptions
Pin
Name
1
NCS
2
MOTION
Type
Definition
IN
Chip select for 3-wire SPI (active low).
When using 2-wire SPI, this pin should tie to low
OUT
Motion detection output (active low output)
3
SDIO
I/O
Bi-directional I/O for SPI
4
SCLK
IN
Clock input for SPI
5
LED
OUT
LED control
6
VSS
7
VDD
8
VDDA
GND
Chip ground
PWR
VDD is the power supply input
High Voltage Segment (VDD : 2.1V ~ 3.6V) : in this case, VDDA is the 1.8V regulator output and
should connect a 4.7uF capacitor to GND.
PWR
Low Voltage Segment (VDD : 1.7V ~ 2.1V) : VDDA should connect to VDD directly.
Sensor Orientation
NCS 1
MOTION 2
SDIO 3
SCLK 4
Top View of Sensor
8 ^VDDA
7 ^VDD
+Y
6 ^VSS
5 ^LED
Top View of Mouse Casing
LB
RB
8
1
7
2
6
3
5
4
+X
Figure 2. Orientation Relationship between Sensor and Mouse
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PAW3212DB-TJDT-DS-R1.2-19112014
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