PixArt Imaging Inc.

PAN3203DI

Wireless Optical Mouse Single Chip

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8

PixArt Imaging Inc.

V0.1 Jan. 2006

4.2 1.8V Application Circuit (with IR LED)

#2. EEPROM Circuit

BAT_1.5V

Z2

B5

SW5

+

C23

1uF

+

C21

10uF

Q3

3904

BAT_3.0V

VCC_1.8V

RFDATA

R11

100K

R8

10K

BatDetect

C5

0.1uF

C6

22pF

Note2:

Please reserve C19,R5,SW7 for future use

Z1

C12

100pF

C9

0.1uF

RFEN

SW3

C24

0.1uF

Q4

2N3906

Q1

2N3906

ISDA

RFU

* R5 open

* C19

X1

27.042MHZ

+

C32

22uF

D2

1N5819

U1

ELM9318

VOUT

SW

VCC_1.8V

* SW7

IR_1.8V

B4

RFosc

VCC_1.8V

R20

short/open

#1. Battery Power Circuit

Note1:

R20

R21

short

open

==>VDD_1.8V

open

short ==>BAT_3.0V

IR_1.8V

R1

D1

VCC_1.8V

Z1

RFU

LKEY

VR1

100K

R4

10R

MKEY

U4

PAN3203DI

20

17

23

2

24

15

6

3

21

7

14

16

8

13

1

19

10

22

4

18

9

5

11

12

BR

RFID

RFU

ZY2

BATLow

ISCK

OSCOUT

BL

BM

OSCIN

NC

ISDA

VDDD

B5

ZY1

RFEN

VDD

NC

B4

RFDATA

VSS

LED

VDDA

VREF

VR2

100K

Z2

SW2

C18 10pF

#4. Sensor Circuit

R14

100K

RFcarrier

B5

SW4

+

C11

1uF

IR_1.8V

VIN PAD

U5

ELM9818

R21

open/short

R9

170K

R3 10K

BAT_1.5V

RFID

LKEY

ENSW1

ENCODER

Z2

Z1

COM

RKEY

SW6

VCC_1.8V

B. Regulator

+

C8

1uF

SW1

MKEY

+

C30

47uF

#3. RF TX Circuit

+

C33

22uF

BatDetect

RFcarrier

BAT_3.0V

VCC_1.8V

+

C20

1uF

C10

0.1uF

A. DC/DC Converter

ISCK

C13

100pF

RFDATA

RFosc

+

C31

100uF

C22

0.1uF

R7

10K

L2

220uH

R6 2K

RKEY

Q4

2N3906

BatDetect

Optional power source: A or B

VCC_1.8V

RFEN

RFID

U3

24AA02

A0

A1

A2

VSS SDA

SCL

WP

VCC

ISCK

VCC_1.8V

B4

R10

470K

BAT_3.0V

ISDA

Q2

3904

Figure5. Application Circuit for 1.8V (with IR LED)