PixArt Imaging Inc.

PAN3203DI

Wireless Optical Mouse Single Chip

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7

PixArt Imaging Inc.

V0.1 Jan. 2006

4. Referencing Application Circuit

4.1 1.8V Application Circuit (with Red LED)

BAT_3.0V

VCC_1.8V

BatDetect

+

C11

1uF

RFcarrier

+

C20

1uF

VCC_1.8V

C32

22uF

X1

27.042MHZ

#3. RF TX Circuit

MKEY

B4

C33

22uF

R8

10K

LKEY

BatDetect

SW3

B4

R20

short/open

* R5 open

U1

ELM9318

VOUT

SW

Z2

RKEY

C4

47uF

R21

open/short

+

C23

1uF

Note1:

R20

R21

short

open

==>VDD_1.8V

open

short ==>BAT_3.0V

L2

220uH

Q4

2N3906

C10

0.1uF

BAT_1.5V

C13

100pF

BAT_1.5V

ENSW1

ENCODER

Z2

Z1

COM

BAT_3.0V

R6 2K

SW2

VCC_1.8V

RFDATA

C18 10pF

Q2

3904

C31

100uF

R1

R11

100K

C30

47uF

RFEN

ISCK

RFosc

#4. Sensor Circuit

BatDetect

VCC_1.8V

* C19

SW1

+

C21

10uF

B5

R7

10K

D3

1N5819

BAT_3.0V

Note2:

Please reserve C19,R5,SW7 for future use

C6

22pF

RFcarrier

VIN PAD

U5

ELM9818

C24

0.1uF

LKEY

* SW7

RFosc

Optional power source: A or B

MKEY

RFU

RFID

LED_2.7V

R14

100K

U3

24AA02

A0

A1

A2

VSS SDA

SCL

WP

VCC

ISDA

RFDATA

VR2

100K

#2. EEPROM & LED-POWER Circuit

U2

ELM9327

VOUT

SW

LED_2.7V

R10

470K

R9

170K

A

VCC_1.8V

RFID

Q1

2N3906

D1

R4

10R

+

C8

1uF

Q3

3904

BAT_1.5V

Z2

C12

100pF

VR1

100K

RKEY

A. DC/DC Converter

Z1

B5

SW4

SW6

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

C22

0.1uF

D2

1N5819

VCC_1.8V

ISCK

L1 200uH

B. Regulator

ISDA

SW5

VCC_1.8V

RFU

C3

47uF

C5

0.1uF

VCC_1.8V

C9

0.1uF

RFEN

#1. Battery Power Circuit

Z1

R3 10K

Q4

2N3906

Figure4. Application Circuit for 1.8V (with Red LED)