7

PixArt Imaging Inc.

PAW3552DB Product Brief

USB/PS2 Optical Mouse SoC

Version 0.1 |1 Mar 2016 | 10003EN

PixArt Imaging Inc. http://www.pixart.com

All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission.

3.0 Reference Schematics

Figure 7. Application Circuit for PAW3552DB

JP1

USB CNN

VBUS

1

GND

2

Shield

3

D-

4

D+

5

+

C5

10uF

C4

0.1uF

VBUS

VDD5V

R3 1R

MFIO2

VDD5V

MFIO1

ENSW1

Z2

Z1

COM

R4

30K

VDD5V

VDD5V

D+

D-

C3

0.1uF

BL1

R5

30K

D1

LED(Socket)

U1

PAW3515DB

VDD5V

2

Z1

3

MFIO1(LED)

1

Z2

4

MFIO2(SW)

5

VSS

6

D-

7

D+

8

R2

33R

GND

R1

33R

C1

27pF

C2

27pF

R6

30K

BM1

Z2

BR1

Z1

R7

33R(Socket)

Note:

1. R1, R2, C1, C2 and R4 are optional and depend on EMC immunity of layout

2. The resistor tolerance of R4, R5 and R6 is 5%

3. USb cable connector JP1 is suggested to has the pin sequence like:

VBUS, GND, Shield, D-, D+

4. Maximum LED reverse current is 10 uA @ LED reverse voltage 5V.