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Index
1. General description 2. Features 3. Pin configurations (package) and descriptions 4. Absolute maximum rating 5. Electrical characteristics 6. Application circuit
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OM02 Optical Sensor
1. General description
This optical CMOS sensor provides a non-mechanical tracking engine for implementing a computer mouse. On the CMOS IC chip, images are captured, digitized, and then digitally processed. Using an optical navigation technology, the sensor measures changes in position by optically acquiring sequential surface images (frames) and mathematically determining the direction and magnitude of movement. The sensor is mounted in a plastic optical package and is designed to be used with a high intensity LED. Hence, it provides a complete and compact tracking engine. This optical tracking engine has no moving parts and requires no precise optical alignment. Thus, it enables high volume system assembly. It offers a quadrature output mode for interface flexibility. The tracking resolution is specified at 400 counts per inch (cpi) at rates of motion up to 16 inches per second (ips).
2. Features
Superior precision and motion tracking by new optical navigation technology Non-mechanical surface-tracking engine Complete 2D motion sensor Smooth surface navigation Single 5.0 volt power supply Power down pin (PD) for USB suspend mode operation On chip oscillator requiring only an external resistor (No resonator required) 16-pin staggered dual inline package (ASDIP-16 / I-DIP-16) Hibernation/suspend mode
3. Pin configurations (package) and descriptions (We define as ASDIP-16 and Agilent(R) define as I-DIP-16 which are 16-pin inter-digitated DIP) Front View
16
TIO PD RBIN VDD GND ROSCA GND ROSCB
TCLK X2 X1 Y1 Y2 XY_LED REFA REFB
1 15 2 14 3 13 4 12 5 11 6 10 7 9 8
Symbol I/O Description X1,X2, O X and Y axis quadrature outputs Y1,Y2 XY_LED O LED control RBIN - LED output control ROSCA, - On chip oscillator frequency control ROSCB VDD - 5.0 volt DC power supply GND - System ground REFA, REFB - Internal reference PD I Power down pin, active high TCLK I Serial port clock for testing mode TIO I/O Serial data for testing mode
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This specification may change without further notice. (Revision Date: 2004/2/10)
OM02 Optical Sensor
Bottom View
1 16 2 15 3 14 13 12 6 11 10 8 9
0.80
0.2 5
22.30
3.0
4 5
13.38
0.50 (lead width) 1.27 (lead offset) 2.54 (lead pitch)
1.0
9.10
7 6.02
3.18
1.4 2
5.15 1.42
0.25
4.55
6.17 12.34 5
Note: Dimension in millimeter. Dimension tolerance is +/- 0.1 mm. Coplanarity of leads is 0.1 mm. Lead pitch tolerance is +/- 0.15 mm.
Cumulative pitch tolerance is +/- 0.15 mm. Angular tolerance is +/- 3. Maximum flash is +0.2 mm. Chamfer (25 X 2) on the taper side of the lead.
Module Structure (Dimension in millimeter)
LENS
10.38
7.25
Surface is 0 ref.
0.5mm~0.8mm
This specification may change without further notice. (Revision Date: 2004/2/10)
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OM02 Optical Sensor
4. Absolute maximum ratings
Parameter Symbol Min. Storage Temperature Range TSTR -40 Operating Temperature Range TOPR 0 Lead solder Temperature Supply Voltage ESD Input Voltage Angle of incidence VDD 4.4 -0.5 30 Max 85 40 245 Unit Notes
For 10 seconds, 1.6mm below seating plane.
5.5 V 2 KV All pins, human body model VDD +0.5 V PD, TIO, TCLK 45 degree
5. Electrical characteristics 5-1. Recommended operating conditions
Parameter Symbol Oscillator Resistor ROSC Speed S Acceleration A Source Current R1 Mode (RBIN tied to VDD) Bin Resistor Source Current Mode (RBIN tied R2 to R2 to GND) Distance from Lens Reference A Plane to Surface = 639nm LED Light onto IC IRRINC = 875nm Unintended External Light IRREXT onto IC Min Typ. Max. Unit 43 51 56 K 16+ inches/sec 1.0 g 10 8.2 2.1 80 100 2.2 191 33 2.3 K mm Notes
For Application Circuit Type 1. For Application Circuit Type 2.
25,000 mW/m2 30,000 10 mW/m2
5-2. DC electrical characteristics
Parameter Clock Frequency Frame Rate REFA Voltage REFB Voltage ROSCA Voltage ROSCB Voltage Symbol Min Typ. Max. Unit FCLK 13 16 19 MHz fframe 1400 1700 2000 frames/sec VREFA 3.25 3.5 3.75 V VREFB 0 V VROSCA 0.4*VDD 0.5*VDD 0.6*VDD V VROSCB VDD V Notes
This specification may change without further notice. (Revision Date: 2004/2/10)
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OM02 Optical Sensor
Mouse Active DC Standby Supply Current Power Down Input Low Voltage TCLK, TIO, Input High Voltage PD Output Low Voltage Output High Voltage Output Low Voltage X1, X2, Y1, Y2 Output High Voltage LED Duty Cycle Mouse Active Standby Power Down Low Output Current ILEDL IDDAVG IDDSB IDDPD VIL VIH VOL VOH VOL VOH 3 3.5 3.5 -1 1.5 Typ. + 35% -1 0 3.1 -510/R2 0 13 10 3.0 0.8 0.4 0.4 60% 5% 0.20% 1 6 Typ. 35% 1 mA mA mA V V V V V V No load on X1, X2, Y1, Y2. Excluding LED current.
IOL = 0.5mA IOH = 0.5mA IOL = 0.5mA IOH = 0.5mA
A mA mA A VOH = 0.6 V VOH = VDD - 2 V R2 < 5K
High Source Current ILEDHSRC (RBIN tied to VDD) XY_LED High Sink Current Output Current (RBIN tied to R2 to ILEDHSINK GND) High Sink Current I (RBIN short to GND) LEDHSINK
5-3. AC electrical characteristics
Parameter Power Down Pulse Width Power Down from PD Power Up from PD Power Up from VDD Transient Supply Current Rise Time TIO Fall Time Rise Time X1, X2, Y1, Y2 Fall Time Rise Time XY_LED Fall Time Symbol tPDW tPD tPUPD tPU IDDT tr tf tr tf tr tf Min 720 Typ. 600 20 5 5 100 100 100 100 Max. 300 200 37 Unit s s ms ms mA ns ns ns ns ns ns When the mouse is fully active again. CL = 30 pF CL = 30 pF CL = 30 pF CL = 30 pF With LED With LED Notes Pulse width to initiate the power down mode.
This specification may change without further notice. (Revision Date: 2004/2/10)
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OM02 Optical Sensor
5-4. Timing and state diagrams 5-4-1. Quadrature Output Waveform
The output signals are two channels quadrature (X and Y), which emulates encoder phototransistors. Sensor IC generates X and Y relative displacement values that are converted into two channel quadrature signals. The two channel quadrature outputs are 3.5V signals. The X and Y counts are used to generate the X1, X2 and Y1, Y2 quadrature signals. The quadrature signals can change at a maximum rate of 25 KHz. The following diagrams show the timing for positive X motion, to the right direction.
X1 X2
t
t
t
t
t
t
where t = 40us Example: Quadrature Output Waveform (+X motion)
5-4-2. PD Pin Timing
Pulse width to initiate the power down mode, tPDW (Power Down Pulse Width) minimum time is 720s. When the mouse is fully active again, tPUPD (Power Up from PD) maximum time is 300ms.
PD
ID D tPD tPDW tPUPD
PD Timing Normal Mode
This specification may change without further notice. (Revision Date: 2004/2/10)
5
OM02 Optical Sensor
6. Application circuit 6-1. Application type 1 (Compatible with Agilent(R) HDNS-2000)
(where Rosc is 51K; R3 open for 400dpi, short for virtual 800dpi; LED-2 is for shining only) LED BIN K/L/M/N P Q R S T U
R1 Value () 10 ~ 69.8 10 ~ 78.7 10 ~ 93.1 10 ~ 113 10 ~ 137 10 ~ 169 10 ~ 191 EFT Level 3.0KV Class A 1.2KV Class B Don't Care (1.2KV Class C) Rp 10 Short Ru 10 Short Cosc 1nF Open C1 & C3 0.1uF 100uF Open C2 C0 & C4 10uF Open Cp 10uF Cu 22uF
PS/2 Connector
5 3 1
VDD VSS C LK DATA
C 3 and C4 direct connect to M C U pin #1 and #8
Panasonic EVQ Series Encocder 3 Rp 4 Cp 7 5 6 51K 16 8 O PT C LK DATA O SC R VSS C3 C4 1 Z1 Z2 VDD L M R O SC .O UT X2 X1 Y1 Y2 11 10 9 2 13 12 14 15
C 1 and C2 direct connect to sensor pin #12 and #13
C1 C2
C osc
6 4 2
4 3 5 1 C0 Rosc R1 R 13 11 14 VDD RO SC A Hight Light RBIN 9 LED -2 RO SC B LED 1 T C LK 16 T IO Lens Surface T exture 2N 3904 15 6 PD XY _LED 2 7 X2 REFA 3 0.1uF 4.7uF 8 X1 REFB 4 10 Y1 GND 5 12 GND Y2
Elan EM 84510F (PS/2 M ouse C ontroller)
OM 02 Optical M ouse Sensor
C 3 and C4 direct connect to M C U pin #7 and #11
Ru
USB VDD D+ DVSS Shield Panasonic EVQ Series Encocder 4 5 1 3 4.7uF C3 C4
C 1 and C2 direct connect to sensor pin #12 and #13
C1 C2
C osc
C0
Cu
11 V DD 13 D + 12 D 8V 3.3V 3 4 Z1
D _SEL L R M X2 X1 Y1 IR_C 2 Y2
6 1 5 14 17 18 16 15
R3
14 1 16 15 2 3 4 5
13 11 RO SC A V RBIN D D 9 RO SC B T C LK T IO XY _LED PD X2 X1 Y1 Y2 REFA REFB GND GND 6 7 8 10 12
Rosc
R1
Lens High Light LED
R
LED -2
Surface T exture
2N 3904
Z2 7 VSS O SC I O SC O 10
0.1uF
4.7uF
30PF 30PF
9
6MHz
1.5K
2N 3904
Elan eKM 8023 US B & PS /2 M ouse C ontroller
OM 02 Optical M ouse Sensor
This specification may change without further notice. (Revision Date: 2004/2/10)
6
OM02 Optical Sensor
6-2. Application type 2 (Compatible with Agilent(R) ADNS-2051)
(where Rosc is 51K; R3 open for 400dpi, short for virtual 800dpi; LED-2 is for shining only) LED BIN R2 Value (K) EFT Level 3.0KV Class A 1.2KV Class B Don't Care (1.2KV Class C) Rp 10 Short K/L/M/N/P 8.2 ~ 12 Ru 10 Short Q 8.2 ~ 15 Cosc 1nF Open R 8.2 ~ 18 C1 & C3 0.1uF 100uF Open S 8.2 ~ 22 C2 T 8.2 ~ 27 C0 & C4 10uF Open U 8.2 ~ 33 Cp 10uF Cu 22uF
PS/2 Connector
5 3 1
V DD VSS C LK D ATA
C3 and C4 direct connect to M CU pin #1 and #8
Panasonic E V Q C 3 Series Encocder 3 Z1 4 Z2 Cp 7 5 6 51K 16 8 O PT C LK D ATA O SC R V SS C4 1 V DD L M R O SC .OU T 11 10 9 2
C1 and C2 direct connect to sensor pin #12 and #13
C1 C2 11 13 15 1 16 2 3 4 5 14 V DD PD TC LK TIO X2 X1 Y1 Y2 R B IN R O SC A
6 4 2
4 3 5 1 C0 Rp
C osc
R
R osc 9 H igh t Light LED Lens X Y _LED R E FA R E FB GN D GN D 6 7 8 10 12 0.1uF 4.7uF LED -2
R O SC B
X 2 13 X 12
1
Surface Texture
Y 1 14 Y 2 15
Elan EM 84510F (PS/2 M ouse Controller)
R2
OM 02 Optical M ouse Sensor
C3 and C4 direct connect to M CU pin #7 and #11
Ru
U SB V DD D+ DV SS Shield Pan asonic EV Q Series En cocder 4 5 1 3 4.7uF C3 C4
C1 and C2 direct connect to sensor pin #12 and #13
C1 C2
C osc
R
C0
Cu
11 V DD 13 D + 12 D 8V 3.3V 3 4 Z1 Z2
D _SE L L R M X2 X1 Y1 Y2 IR _C 2
6 1 5 14 17 18 16 15
R3
R2
7 V SS
13 11 R O SC A 14 V R B IN D D R O SC B 1 TC LK 16 TIO X Y _LED 15 PD R E FA 2X 2 R E FB 3X 4 5
1
Rosc
9 Lens H igh Light LED LED -2
6 7 8 10 12
Surface Texture
0.1uF
4.7uF
30PF 30PF
9
O SC I O SC O 10
6MHz
Y1 Y2
GN D GN D
1.5K
2N 390 4
Elan eKM 8022A USB & PS/2 M ouse Controller
OM 02 Optical M ouse Sensor
This specification may change without further notice. (Revision Date: 2004/2/10)
7

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