PixArt Imaging Inc.

PAW3501UI

USB Optical Mouse Sensor Single Chip

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PixArt Imaging Inc.

V2.1 April. 2008

6.3 PCB Layout Consideration

Caps for pins 13, 14, 17 must have trace lengths less than 5mm.

The trace lengths of OSCOUT, OSCIN must less than 6mm.

6.4 Recommended Value for R1

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%

R1 value (ohm), VDD = 5.0V

LED Bin Grade

Min.

Typ.

Max.

N

51

100

P

51

100

Q

51

100