PixArt Imaging Inc.

PAN3204DB

Wireless Optical Mouse Sensor

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PixArt Imaging Inc.

E-mail: fae_service@pixart.com.tw

V3.0, Apr. 2008

8.3 Power Supply at 1.8V Application Circuit (with IR LED, 27MHz Transceiver)

VCC_1.8V

C14

100pF

#1. Battery Power Circuit

RESET

RKEY

IR_1.8V

VCC_1.8V

Q3

3904

#2. MCU Circuit

C5

100uF

Z2

D2 LED

Z2

#3. Sensor Circuit

BAT_3.0V

C9

1uF

SW2

R6

27K

SW3

X1

6MHz

VCC_1.8V

RFDATA

+

C16

10uF

Antenna

VCC_1.8V

*Note that 2.7V application, R7 use 34.8K ohm +/- 1%

*Note that 1.8V application, R7 use 36K ohm +/- 1%

IR_1.8V

MOTSWK

C8

22uF

VCC_1.8V

C3

0.1uF

Q2

3904

Q1

3904

L1

220uH

U1

MCU

1

2

3

4

5

6

7

8

9

10

18

17

16

15

14

13

12

11

P52

P53

TCC

/RESET

VSS

P60./INT

P61

P62

P63

P64

P51

P50

OSCI

OSCO

VDD

P67

P66

P65

IDSYNC

GND

R11

2K

MKEY

ENSW1

ENCODER

Z2

Z1

COM

R4

20K

D1 1N5819

R10

100K

LKEY

VCC_1.8V

C2 15pF

C13

0.1uF

C15

100pF

SCLK

U4

PAN3204DB

2

6

4

3

5

7

8

1

MOTSWK

VSS

SCLK

SDIO

LED

VDD

VDDA

OSC_RES

#4. RF TX Circuit

RFDATA

C6

0.1uF

C18

27pF

R5

36K

C21

33pF

C12

0.1uF

IR_1.8V

BAT_1.5V

R8

56K

C17

0.1uF

R9

10K

RFEN

R7

MOTSWK

C10

0.1uF

IDSYNC

RKEY

Optional power source: A or B

SDIO

SCLK

R2

30K

Z1

PAN3204 external resistor notes

C20

10pF

C7

22uF

MKEY

R1

C19

100pF

B. Regulator

U3

ELM9318

VOUT

SW

RFEN

Z1

R3 10R

SDIO

VIN PAD

U2

ELM9818

SW1

S1

C11

1uF

VCC_1.8V

C1 15pF

VCC_1.8V

LKEY

X2

13.5225MHz

A. DC/DC Converter

C4

47uF

Figure 16. Application Circuit for 1.8V (with IR LED)