PixArt Imaging Inc.

PAW3204DB

Wireless Optical Mouse Sensor

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21

PixArt Imaging Inc.

V3.0, Apr. 2008

8. Referencing Application Circuit

8.1 Power Supply at 2.7V Application Circuit (with Red LED, 2.4GHz Transceiver)

C6

1uF

EPSD

R1

VCC_2.7V

BAT_1.5V

RKEY

IDSYNC

MKEY

C10

10nF

+

C7

10uF

RESET

U4

PAW3204DB

2

6

4

3

5

7

8

1

MOTSWK

VSS

SCLK

SDIO

LED

VDD

VDDA

OSC_RES

C15

4.7pF

IRQ

R5

270K

U1

ELM9327

VOUT

SW

L3

8.2nH

C5

1uF

S1

R4

CE

C1

47uF

X2*

16MHz

C16*

1

2

C18

0.1uF

U2

EEPROM

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

CS

SDIO

Z1

Z2

SW3

MOSI

C9

33nF

1

2

VCC_2.7V

C14

2.2nF

C17*

1

2

(Reference only)

EPSD

L1

220uH

R6

4.7k

C8

0.1uF

IRQ

*X2 for +/-60ppm, CL = 12pF

*C16 and C17 must have values that match the

crystals load capacitance CL

VCC_2.7V

Z1

R9

1M

C3

15PF

C2

47uF

nRF24L01 notes

VCC_2.7V

C13

1pF

MOTSWK

#3. Sensor Circuit

PAW3204 external resistor notes

MISO

U3

MCU

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

PB5

PB4

PA3

PA2

PA1

PA0

PB3

PB2

PB1

PB0

VSS

PC1

PC2

PC3

PB6

PB7

PA4

PA5

PA6

PA7

OSC2

OSC1

VDD

RESET

PC7

PC6

PC5

PC4

MOSI

IDSYNC

CS

*Note that 2.7V application, R4 use 34.8K ohm +/- 1%

*Note that 1.8V application, R4 use 36K ohm +/- 1%

CE

L4

2.7nH

1

2

VCC_2.7V

C12

1.5pF

1

2

U5

nRF24L01

1

2

3

4

5

11

12

13

14

15

CE

CSN

SCK

MOSI

MISO

VDD_PA

ANT1

ANT2

VSS

VDD

LKEY

SCK

Antenna

VCC_2.7V

R8

22K

SCLK

LED_2.7V

D1 1N5819

SCK

SCLK

SW1

DC/DC Converter

C11

1nF

LED_2.7V

MOTSWK

#4. RF TX Circuit

SCK

RKEY

SW2

MKEY

LKEY

#2. MCU Circuit

C4 15PF

VCC_2.7V

SDIO

MISO

R7

20K

X1 6MHZ

D2 LED

ENSW1

ENCODER

Z2

Z1

COM

#1. Battery Power Circuit

L2

3.9nH

1

2

Z2

Figure 14. Application Circuit for 2.7V (with Red LED)