PAN3401 Datasheet, PDF (12/15 Pages) Pixart Imaging Inc. – PS/2 OPTICAL MOUSE SINGLE CHIP

PixArt Imaging Inc.
PAN3401
9. Referencing Application Circuit
PS/2 Optical Mouse Single Chip
*Y1 OPEN
U1
VDD_5V_10R
*R3 OPEN
*1 _NC
NC ^*14
ENSW1
VDD_5V
BL
1 _BL
Z1 ¹²
Z1
VDD_5V
R1 D1 LED
*R2 OPEN
*C4 OPEN
VDD_5V VDD_5V_10R
2 _LED
3 _{OSC_RES}
4 _VSS
5 _VDD5V
Z2 ¹¹
BM ¹⁰
BR ⁹
DATA ⁸
Z2 ^COM
BM
BR
C5 C2
+
0.1uF 10uF
R4 SHORT
JP1
1 ^VCC
2 ^GND
3 ^DATA
R6 10 ohm
6 _VREF
CLOCK ⁷
R5 SHORT
4 ^CLK
C1
C3
+
PAN3401
C6 C7
0.1uF 1uF
27pF 27pF
Note:
1. *R2 is left for PAN3401 RC oscillator
2. *C4 , *R3 and *Y1 is left for PAN3502 with USB interface
2. PS/2 connector JP1 is suggested to has the pin sequence like this:
VCC, GND, DATA, CLK.
3. R4, R5, C6, C7 are for EMC immunity
Warning:
If PCBA has dual layout for PAN3401 and PAN3502, please DON'T mount
PAN3401 in PAN3502's pin pads *1 and *14
Figure 9. Application Circuit for PAN3401
10. Recommended Value for R1
z Radiometric intensity of LED
Bin limits (mW/Sr at 20mA)
LED Bin Grade Min.
Typ.
Max.
N
14.7
-
17.7
P
17.7
-
21.2
Q
21.2
-
25.4
Note: Tolerance for each bin will be ± 15%
z R1 value (ohm), VDD = 5.0V (refer to Figure 9)
LED Bin Grade Min.
N
43
P
43
Q
43
Typ.
56
56
56
Max.
-
-
-
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PixArt Imaging Inc.
E-mail: [e-mail]
V1.3, Mar. 2008