PAW3101DB Datasheet, PDF (20/22 Pages) Pixart Imaging Inc. – CMOS OPTICAL MOUSE SENSOR

PixArt Imaging Inc.
PAW3101DB
7.4 PCB Layout Consideration
z Caps for pins 7, 8 must have trace lengths less than 5 mm.
z The trace lengths of OSCOUT, OSCIN must less than 6 mm.
CMOS Optical Mouse Sensor
7.5 Recommended Value for R1
z Radiometric intensity of LED
Bin limits (mW/Sr at 20 mA)
LED Bin Grade Min.
Typ.
Max.
N
14.7
17.7
P
17.7
21.2
Q
21.2
25.4
Note: Tolerance for each bin will be ± 15%
7.5.1 5V Application
z R1 value (ohm) for external LED control, VDD = 5.0V (refer to Figure 11)
LED Bin Grade Min.
Typ.
Max.
N
27
47
P
27
47
Q
27
47
z R1 value (ohm) for internal LED control, VDD = 5.0V (refer to Figure 12)
LED Bin Grade Min.
Typ.
Max.
N
47
100
P
47
100
Q
47
100
7.5.2 3.3V Application
z R1 value (ohm) for internal LED control, VDD = VREF = VDD_LED = 3.3V (refer to Figure 13)
LED Bin Grade Min.
Typ.
Max.
N
22
100
P
22
100
Q
22
100
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PixArt Imaging Inc.
E-mail: [e-mail]
20
V3.1 May. 2008