LP2950ACZ-3.3
3 Vin
GND
0.1
uF
14
Vcc
Vcc
D+
D-
1.3 KΩ
GND
10
16
15
11
Vpp
D+
D-
Vreg
P0.7* 21
P0.6 22
P0.5* 23
CYPRESS
CY7C63743A-PC
P0.4* 24
P0.2 3
P0.3 4
10 KΩ
10 KΩ
+
4.7uF
2
0.1uF
0.1uF
0.1uF
+
4.7uF
17
15
ADNS
2120
Lens
Vcc
Vo 1
V DD V DD Internal
Image
16 GND
Sensor
19
GND
3
2
4
1
6
7
SCLK
MISO
MOSI
NCS
RESET
NPD
REFB
OSC_IN
GUARD
14
10
9
8
ADNS-3060
5
HLMP-ED80
187Ω
1/8 W
BS170
SURFACE
LED_CTRL
17 P1.7
Vcc
3
Vcc
Scroll Wheel
Encoder
ALPS
EC10E
QA 1
QB 2
7
P1.4
SHLD
18
P1.5
REFC
13
+
2.2
uF
24 MHz
Ceramic Resonator
Murata
CSALS 24 M 0X 53 -B 0
TDK FCR 24. 0 M 2G
Vo 3.3V
P1.0
P1.2
P1.1
5
L
6
M
20
R
Buttons
20KΩ
20KΩ
OSC_OUT
NC
NC
VSS 9
XTALOUT
13
XTALIN
12
11 18
20
6 MHz
(Optional)
20kΩ
NC
OPTP
12
Notes:
- All capacitors close to chip
- 24MHz and 6MHz oscillators close to chip
- * Outputs configured as open drain
20kΩ
Figure 8. Schematic Diagram for USB, PS/2 mouse application with ADNS-3060
Notes
•
Caps for pins 15 and 17 MUST have trace lengths LESS than 5 mm to nearest ground pin.
•
Pins 15 and 17 caps MUST use pin 16 GND.
•
Pin 9, if used, should not be connected to PCB GND to reduce potential RF emissions.
•
The 0.1 uF caps must be ceramic.
•
Caps should have less than 5 nH of self inductance.
•
Caps should have less than 0.2
Ω
ESR.
•
NC pins should not be connected to any traces.
•
Surface mount parts are recommended.
•
Care must be taken when interfacing a 5V microcontroller to the ADNS-3060. Serial port inputs on the sensor should
be connected to open-drain outputs from the microcontroller or use an active drive level shifter. NPD and RESET
should be connected to 5V microcontroller outputs through a resistor divider or other level shifting technique.
•
VDD3 and GND should have low impedance connections to the power supply.
•
Capacitors connected to pin 15 and 17 should be connected to pin 16 and then to pin 19.
8
HP [ AGILENT(HEWLETT-PACKARD) ]
