PixArt Imaging Inc.
PAN301BSI-208
CMOS Optical Mouse Sensor
7. Referencing Application Circuit for Cordless Optical Mouse
7.1 27MHz RF TX Circuit with Internal Regulator
PIN8
*Step-up DC/DC converter circuit
BATTERY
L1
POWER_3.3V
150uH
D1
1N5819
U1
AIC1642-33CX
C1
C2
3
2
SW
VOUT
47uF
100uF
L2
R15
0
3.3uH
DGND
AGND
BATTERY
*RF Circuit
R2
10
C4
0.1UF
C5
C3
0.1uF
1UF
RF_EN
C6
C7
0.1UF
R3
X1
R4
0.1UF
L3
27K
13.5225MHz
36K
2
R5
C8
3.3uH
Q1
56K
10pF
3904
C10
27pF
C11 100pF
Q2
C9
R7
Q3
C12
R6
36K
2
RF_DATA
2
27pF
C14
R8
2K
3904
C13
10K
3904
33pF
*MCU
C15 15pF
POWER_3.3V
X2
U2
ID_SYNC
RF_EN
R9
1
2
3
4
5
6
7
8
9
18
P52
P51
WHEEL_EN
RF_DATA
OSCI
17
16
15
14
13
12
11
10
P53
P50
OSCI
OSCO
VDD
P67
30K
4MHz C16 15pF
TCC
RESET
OSCO
DGND
/RESET
VSS
C17
0.1uF
POWER_3.3V
Z1
SCLK
SDIO
PD
P60./INT
P61
Z2
C18
P66
R_KEY
M_KEY
P62
P65
L_KEY
0.1uF
P63
P64
EM78P156
DGND
POWER_3.3V
DGND
POWER_3.3V
LB1
1
R12
2
2
2
L_KEY
M_KEY
R_KEY
R10
100K
100K
R13
10K
R11
20K
R14
MB1
1
Z1
C19
Z2
10K
C20
0.1uF
ID_SYNC
RB1
1
0.1uF
DGND
DGND
DGND
S1
ENSW1
2
1
Z1
Z2
WHEEL_EN
3
COM
DGND
ENCODER
*SENSOR
U3
PD
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
VSS_LED
LED
PD
SDIO
SCLK
NC
POWER_3.3V
D2
R1
DGND
SDIO
SCLK
LED
OSCOUT
OSCIN
VDDD
VSSD
VSSA
VDD
X3
18.432MHz
NC
C21
NC
47uF
DGND
AGND
XB
DGND
XA
C22
C23
+
VDDA
VRT
YB
10uF
0.1uF
C24
10
YA
C26
47uF
0.1uF
AGND
PAN301BSI-208
AGND
Figure 18. 27MHz RF transceiver circuit with internal regulator
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PixArt Imaging Inc.
20
E-mail: fae_service@pixart.com.tw
V1.1, MAY. 2004
PIXART [ PIXART IMAGING INC. ]
