PAW3204 Datasheet, PDF (21/27 Pages) Pixart Imaging Inc. – LOW COST WIRELESS MOUSE SENSOR

PixArt Imaging Inc.
PAW3204DB
Wireless Optical Mouse Sensor
8. Referencing Application Circuit
8.1 Power Supply at 2.7V Application Circuit (with Red LED, 2.4GHz Transceiver)
#1. Battery Power Circuit
DC/DC Converter
BAT_1.5V
VCC_2.7V
L1 220uH
D1 1N5819
LED_2.7V
U1
C1
47uF
SW
VOUT
ELM9327
C2
47uF
VCC_2.7V
ENSW1
Z2
Z2
COM
Z1
Z1
ENCODER
SW1
SW2
SW3
RKEY
MKEY
LKEY
#2. MCU Circuit
U2
1
2
A0 VCC
8
7
3
4
A1 WP
A2 SCL
GNDSDA
6
5
EEPROM
VCC_2.7V
SCK
EPSD
C18
0.1uF
EPSD
MKEY
RKEY
LKEY
MOSI
SCK
SDIO
SCLK
MOTSWK
Z1
Z2
1 _PB5
2 _PB4
3 _PA3
4 _PA2
5 _PA1
6 _PA0
7 _PB3
8
PB2
9 _PB1
10
PB0
11 _VSS
12
PC1
13 _PC2
14 _PC3
U3
PB6 ²⁸
PB7 ²⁷
PA4 ²⁶
PA5 ²⁵
PA6 ²⁴
PA7 ²³
OSC2 ²²
21
OSC1
VDD ²⁰
19
RESET
PC7 ¹⁸
17
PC6
PC5 ¹⁶
PC4 ¹⁵
MCU
IDSYNC
RESET
CE
CS
MISO
IRQ
C3 15PF
X1 6MHZ
C4 15PF
R5
VCC_2.7V
270K
R6
C5
4.7k 1uF
PAW3204 external resistor notes
*Note that 2.7V application, R4 use 34.8K ohm +/- 1%
*Note that 1.8V application, R4 use 36K ohm +/- 1%
#3. Sensor Circuit
U4
VCC_2.7V
R4
1 _{OSC_RES}
MOTSWK 2 _MOTSWK
SDIO
3
SDIO
SCLK
4
SCLK
VDDA ⁸
VDD ⁷
6
VSS
5
LED
C6
1uF
C8 ⁺ C7
0.1uF 10uF
D2 LED R1
LED_2.7V
VCC_2.7V
R7
20K
IDSYNC
S1
#4. RF TX Circuit
VC C _ 2 .7 V
PAW3204DB
C9
2
1
33nF
nRF24L01 notes
*X2 for +/-60ppm, CL = 12pF
*C16 and C17 must have values that match the
crystals load capacitance CL
R8
22K
C10 C11
10nF 1nF
U5
CE
CS
SCK
MOSI
MISO
1
2
3
4
5
CE
VDD
CSN
SCK
nRF24L01
VSS
ANT2
MOSI
ANT1
MISO
VDD_PA
15
14
13
12
11
IR Q
C16*
2
1
R9
C17* ^1M
2
1
X2*
1 6 MH z
L2
1
2
3.9nH
L3
8.2nH
L4
1
2
2.7nH
C12
1
2
1.5pF
(Reference only)
Antenna
C13
1pF
C14 C15
2.2nF 4.7pF
Figure 14. Application Circuit for 2.7V (with Red LED)
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PixArt Imaging Inc.
E-mail: [e-mail]
21
V3.0, Apr. 2008