OM02 ETC | Alldatasheet
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Technical content
- General description Page 1 2 . F e a t u r e s P a g e 1 3. Pin configurations (package) and descriptions Page 1 4 . A b s o l u t e m a x i m u m r a t i n g P a g e 3 5. Electrical characteristics Page 3 6 . A p p l i c a t i o n c i r c u i t P a g e 5
This specification may change without further notice. 1 (Revision Date: 2004/2/10) 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 z Superior precision and motion tracking by new optical navigation technology z Non-mechanical surface-tracking engine z Complete 2D motion sensor z Smooth surface navigation z Single 5.0 volt power supply z Power down pin (PD) for USB suspend mode operation z On chip oscillator requiring only an external resistor (No resonator required) z 16-pin staggered dual inline package (ASDIP-16 / I-DIP-16) z Hibernation/suspend mode 3. Pin configurations (package) and descriptions (We define as ASDIP-16 and Agilent® define as I-DIP-16 which are 16-pin inter-digitated DIP) Front View TCLK XY_LED REFA REFB TIO PD RBIN VDD GND ROSCA GND ROSCB Symbol I/O Description X1,X2, Y1,Y2 O △X and △Y axis quadrature outputs XY_LED O LED control RBIN - LED output control ROSCA, ROSCB - On chip oscillator frequency control 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
This specification may change without further notice. 2 (Revision Date: 2004/2/10) zModule Structure (Dimension in millimeter) 22.30 0.50 (lead width) 1.27 (lead offset) 2.54 (lead pitch) Bottom View 3.0 13.38 6.02 4.55 ψ0.80 Note: 1.0 9.10 5.15 1.42 3.18 0.25 6.17 12.34 1.42 0.25 zDimension in millimeter. zDimension tolerance is +/- 0.1 mm. zCoplanarity of leads is 0.1 mm. zLead pitch tolerance is +/- 0.15 mm. zCumulative pitch tolerance is +/- 0.15 mm. zAngular tolerance is +/- 3º. zMaximum flash is +0.2 mm. zChamfer (25º X 2) on the taper side of the lead. Surface is 0 ref. 10.38 7.25 0.5mm~0.8mm LENS θ
This specification may change without further notice. 3 (Revision Date: 2004/2/10) 4. Absolute maximum ratings Parameter Symbol Min. Max Unit Notes Storage Temperature Range TSTR -40 85 ℃ Operating Temperature Range TOPR 0 40 ℃ Lead solder Temperature - - 245 ℃ For 10 seconds, 1.6mm below seating plane. Supply V oltage V DD 4.4 5.5 V ESD - - 2 KV All pins, human body model Input V oltage - -0.5 V DD +0.5 V PD, TIO, TCLK Angle of incidence θ 30 45 degree 5. Electrical characteristics 5-1. Recommended operating conditions Parameter Symbol Min Typ. Max. Unit Notes Oscillator Resistor R OSC 43 51 56 K Ω Speed S - 16+ - inches/sec Acceleration A - 1.0 - g Source Current Mode (RBIN tied to V DD) R1 10 - 191 Ω For Application Circuit Type 1. Bin Resistor Source Current Mode (RBIN tied to R2 to GND) R 2 8.2 - 33 K Ω For Application Circuit Type 2. Distance from Lens Reference Plane to Surface A 2.1 2.2 2.3 mm λ = 639nm 80 - 25,000 LED Light onto IC λ = 875nm IRRINC 100 - 30,000 mW/m2 Unintended External Light onto IC IRREXT - - 10 mW/m 2 5-2. DC electrical characteristics Parameter Symbol Min Typ. Max. Unit Notes Clock Frequency F CLK 13 16 19 MHz Frame Rate f frame 1400 1700 2000 frames/sec REFA V oltage V REFA 3.25 3.5 3.75 V REFB V oltage V REFB - 0 - V ROSCA V oltage V ROSCA 0.4*V DD 0.5*VDD 0.6*VDD V ROSCB V oltage V ROSCB - VDD - V
This specification may change without further notice. 4 (Revision Date: 2004/2/10) Mouse Active I DDA VG - - 13 mA Standby I DDSB - - 10 mA DC Supply Current Power Down I DDPD - - 3.0 mA No load on X1, X2, Y1, Y2. Excluding LED current. Input Low V oltage V IL - - 0.8 V Input High V oltage V IH 3 - - V Output Low V oltage V OL - - 0.4 V I OL = 0.5mA TCLK, TIO, PD Output High V oltage V OH 3.5 - - V I OH = 0.5mA Output Low V oltage V OL - - 0.4 V I OL = 0.5mA X1, X2, Y1, Y2 Output High V oltage V OH 3.5 - - V I OH = 0.5mA Mouse Active - - 60% Standby - - 5% LED Duty Cycle Power Down - - 0.20% Low Output Current I LEDL -1 0 1 μA High Source Current (RBIN tied to VDD) ILEDHSRC 1.5 3.1 6 mA V OH = 0.6 V High Sink Current (RBIN tied to R2 to GND) ILEDHSINK Typ. + 35% -510/R2 Typ. - 35% mA V OH = VDD – 2 V XY_LED Output Current High Sink Current (RBIN short to GND) ILEDHSINK -1 0 1 μA R2 < 5K Ω 5-3. AC electrical characteristics Parameter Symbol Min Typ. Max. Unit Notes Power Down Pulse Width tPDW 720 - - μs Pulse width to initiate the power down mode. Power Down from PD↑ t PD - 600 - μs Power Up from PD↓ t PUPD - - 300 ms When the mouse is fully active again. Power Up from VDD↑ t PU - - 200 ms Transient Supply Current I DDT - 20 37 mA Rise Time t r - 5 - ns C L = 30 pF TIO Fall Time t f - 5 - ns C L = 30 pF Rise Time t r - 100 - ns C L = 30 pF X1, X2, Y1, Y2 Fall Time t f - 100 - ns C L = 30 pF Rise Time t r - 100 - ns With LED XY_LED Fall Time t f - 100 - ns With LED
This specification may change without further notice. 5 (Revision Date: 2004/2/10) 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. tt ttt t where t = 40us Example: Quadrature Output Waveform (+X motion) 5-4-2. PD Pin Timing z Pulse width to initiate the power down mode, tPDW (Power Down Pulse Width) minimum time is 720μs. z When the mouse is fully active again, tPUPD (Power Up from PD) maximum time is 300ms. tPD tPDW tPUPD IDD PD PD Timing Normal Mode
This specification may change without further notice. 6 (Revision Date: 2004/2/10) 6. Application circuit 6-1. Application type 1 (Compatible with Agilent® HDNS-2000) (where Rosc is 51KΩ; 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 (Ω) 10 ~ 69.8 10 ~ 78.7 10 ~ 93.1 10 ~ 113 10 ~ 137 10 ~ 169 10 ~ 191 EFT Level Rp Ru Cosc C1 & C3 C2 C0 & C4 Cp Cu 3.0KV Class A 10Ω 10uF 1.2KV Class B 10Ω 1nF 0.1uF Don’t Care (1.2KV Class C) Short Short Open Open 100uF Open 10uF 22uF OM02 Optical Mouse Sensor Surface TextureLens Elan EM84510F (PS/2 Mouse Controller) L M R OSC.OUT VSS VDD ROSCA 13 11 ROSCB TCLK TI O PD REFA REFB GND GND CLK DATA XY_LED 51K Ω OSCR Rosc Cp OPT 0.1uF 4.7uF RBIN C1 and C2 direct connect to sensor pin #12 and #13 Hight Light LED Panasonic EVQ Series Encocder 2N3904 Rp PS/2 Connector 1 2 R LED-2 DATA CLK VDD VSS Cosc C2C1C4C3 VDD C3 and C4 direct connect to MCU pin #1 and #8 Surface Texture Lens ROSCA ROSCB REFA REFB GND GND XY_LED 0.1uF 4.7uF C1 C2 RBIN TCLK TI O PD VDD Rosc R1 OM02 Optical Mouse Sensor 2N3904 2N3904 Elan eKM8023 USB & PS/2 Mouse Controller VSS7 L R M 1.5KΩ IR_C
9 OSCI
D_SEL 6 R3VDD VDD VSS V3.3V 12 D- USB Shield 4.7uF Ru Panasonic EVQ Series Encocder R High Light LED LED-2 C4C3 C3 and C4 direct connect to MCU pin #7 and #11 C1 and C2 direct connect to sensor pin #12 and #13 Cosc Cu
This specification may change without further notice. 7 (Revision Date: 2004/2/10) 6-2. Application type 2 (Compatible with Agilent® ADNS-2051) (where Rosc is 51KΩ; 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 EFT Level Rp Ru Cosc C1 & C3 C2 C0 & C4 Cp Cu 3.0KV Class A 10Ω 10uF 1.2KV Class B 10Ω 1nF 0.1uF Don’t Care (1.2KV Class C) Short Short Open Open 100uF Open 10uF 22uF Elan EM84510F (PS/2 Mouse Controller) L M R OSC.OUT VSS VDD CLK DATA 51K Ω OSCR Cp OPT
13 Surface Texture
XY_LED 0.1uF 4.7uF VDD TCLK TIO 15 PD
14 RBIN
C3 and C4 direct connect to MCU pin #1 and #8 C1 and C2 direct connect to sensor pin #12 and #13 C2C1 PS/2 Connector 1 2 DATA CLK VDD VSS Surface Texture Lens High Light LED ROSCA ROSCB REFA REFB GND GND XY_LED 0.1uF 4.7uF C1 C2 RBIN TCLK TIO PD VDD Rosc OM02 Optical Mouse Sensor R2 14 2N3904 Elan eKM8022A USB & PS/2 Mouse Controller VSS7 L R M 1.5KΩ IR _C D_SEL 6 R3VDD V3.3V8 12 D- 4.7uF Panasonic EVQ Series Encocder LED-2 R C1 and C2 direct connect to sensor pin #12 and #13 C4C3 C3 and C4 direct connect to MCU pin #7 and #11 Cosc V DD VSS USB Shield Ru Cu