Optical Mouse Sensor

www.DataSheet4U.com Agilent ADNS-2001 Optical Mouse Sensor Data Sheet • High speed motion detector – Accurately measures up to 16 inches per second at 400 cpi • Accurate navigation over a wide range of surfaces – Enables mouse to be used with or without a mouse pad • Power conservation mode during no motion • Compatible with high volume manufacturing processes – Requires no precision optical alignment – Wave solderable • 33% faster than HDNS-2000 – 2000 fps (@ 24 MHz) Applications • Computer mice for desktop PCs, workstations, and portable computers • Trackball • Integrated input devices Description The ADNS-2001 is a low-cost reflective optical sensor that provides a non-mechanical tracking engine for implementing a computer mouse. It is based on optical navigation technology which 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 designed to be used with the HDNS-2100 (Lens), HDNS-2200 (LED Assembly Clip) and HLMP-ED80 (High Light Output 639 nm LED), providing a complete and compact tracking engine. This optical tracking engine has no moving parts and requires no precision optical alignment enabling high volume system assembly. The ADNS-2001 offers a PS/2 or quadrature output mode for interface flexibility. Resolution is specified as 400 cpi at rates of motion up to 16 inches per second. Features • Optical navigation technology – Superior precision and smooth navigation optimized for desktop and portable mouse applications – No mechanical moving parts, provides high reliability and needs no maintenance • Complete compact 2-D motion sensor – Easy implementation and design flexibility – Replaces mechanical ball system in traditional mice • Two selectable output modes – Two channel quadrature output mode (X and Y direction) which emulates encoder phototransistors – Standard 3-button PS/2 output mode Caution: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. www.DataSheet4U.com Theory of Operation The ADNS-2001 is based on Optical Navigation Technology. It contains an Image Acquisition System (IAS), Digital Signal Processor (DSP), and a mode selectable PS/2 or quadrature output converter. The IAS acquires images of microscopic surface images via the lens and illumination system provided by the HDNS2100, HDNS-2200, and the HLMP-ED80. These images are further processed by the DSP to determine direction and distance of motion. The DSP generates a stream of delta x and delta y relative displacement values which are then communicated to the output converter. This converter provides a PS/2 3-button output, replacing existing mouse microcontrollers, or two channel quadrature output, for direct interface to existing mouse microcontrollers. While the part can be run at 24 MHz in quadrature mode, 18 MHz is recommended for PS/2 mode. IMAGE ACQUISITION SYSTEM DIGITAL SIGNAL PROCESSOR PS/2 or QUAD OUTPUT CONVERTER Figure 1. ADNS-2001 block diagram. XYYWWZ A 2001 PIN 1 22.30 (0.878) 0.99 (0.039) 3.18 (0.125) 9.10 (0.358) 5.15 (0.203) LEAD WIDTH 0.50 (0.020) 1.42 (0.056) KAPTON TAPE 0.25 (0.010) 5° TYP. 6.17 (0.243) 12.34 (0.486) LEAD OFFSET 1.27 (0.050) LEAD PITCH 2.54 (0.100) 6.02 (0.237) 13.38 (0.527) 4.55 (0.179) ∅ 5.60 (0.220) NOTES: 1. DIMENSIONS IN MILLIMETERS (INCHES). 2. DIMENSIONAL TOLERANCE: ± 0.1 mm. 3. COPLANARITY OF LEADS: 0.1 mm. 4. LEAD PITCH TOLERANCE: ± 0.15 mm. 5. CUMULATIVE PITCH TOLERANCE: ± 0.15 mm. 6. ANGULAR TOLERANCE: ± 3.0 DEGREES. 7. MAXIMUM FLASH + 0.2 mm. 8. CHAMFER (25 DEGREES x 2) ON THE TAPER SIDE OF THE LEAD. Figure 2. ADNS-2001 sensor package outline drawing. 2 www.DataSheet4U.com Pinout Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Name PS2_C MODE/XA RB/XB MB/YB LB/YA XY_LED VDD3 REFB OSC1 GND OSC2 GND VDD5 VDD5 NRESET PS2_D PS/2 Mode PS/2 Interface Clock Select PS/2 Mode Right Button Input Middle Button Input Left Button Input LED Control Output 3.3 VDC Input Internal Reference Oscillator Input Ground Oscillator Output Ground 5 VDC Input 5 VDC Input NRESET PS/2 Interface Data Quadrature Mode PS/2 Interface Clock XA Output XB Output YB Output YA Output LED Control Output 3.3 VDC Input Internal Reference Oscillator Input Ground Oscillator Output Ground 5 VDC Input 5 VDC Input NRESET PS/2 Interface Data 2D Assembly Drawing of ADNS-2001 Shown with HDNS-2100, HDNS2200, and HLMP-ED80. Agilent provides an IGES file drawing describing the base plate molding features for lens and PCB alignment. Please contact sales representative or visit our web site. Also, see HDNS-2100 Technical Data Sheet for more information. 44.29 (1.744) +x 19.10 (0.752) +y BASE PLATE ESD LENS RING PLASTIC SPRING CLIP 14.58 (0.574) SURFACE IS 0 REF. SENSOR PCB 13.82 (0.544) 10.58 (0.417) 7.45 (0.293) BASE PLATE ALIGNMENT POST Figure 3. 3 www.DataSheet4U.com Exploded View Drawing HDNS-2200 (CLIP) HLMP-ED80 (LED) ADNS-2001 (SENSOR) CUSTOMER SUPPLIED PCB HDNS-2100 (LENS) CUSTOMER SUPPLIED BASE PLATE WITH RECOMMENDED ALIGNMENT FEATURES PER IGES DRAWING Figure 4. Typical Application using PS/2 Output 18 MHz Operation for generic PS/2 compatibility 3.3 V REGULATOR LP2950ACZ-3.3 1.0 µF R1 0.1 µF 7 VDD3 8 REFB 0.1 µF 13 14 PS/2 CONNECTOR 5 3 1 2 6 4 +5 V (4) CLK (5) DATA (1) GND (3) 2 1 16 3 VDD5 VDD5 MODE/XA PS2_C PS2_D RB HLMP-ED80 XY_LED OSC1 6 9 18.432 MHz OSC2 NRESET GND 12 11 15 18.432 MHz CERAMIC RESONATOR SUCH AS AVX KBR-18-432-MSA or MURATA CSA18.432MXZ040 0.22 µF SURFACE 2N3904 BUTTONS R M L 4 MB 5 LB GND 10 ADNS 2001 INTERNAL IMAGE SENSOR HDNS-2100 LENS Note: 0.1 µF between pins 7 and 8 must be ceraminc, and must be trace lengths less than 5 mm. 4 www.DataSheet4U.com Typical USB Application using Quadrature Output 18 or 24 MHz Operation 2.7 Ω 2N3906 3.3 V REGULATOR LP2950ACZ-3.3 1.0 µF R1 1.5 MΩ 0.1 µF 4.7 µF 0.1 µF 7.5 KΩ 0.33 µF 9 12 CEXT VDD 5 P1.0 P0.1 2 VDD D– D+ GND SHLD 6 MHz 11 XTALOUT P0.4 P0.5 P1.2 VSS VPP P0.7 P0.6 13 14 2 VDD5 VDD5 MODE/XA 7 VDD3 8 REFB 0.1 µF HLMP-ED80 XY_LED 6 9 24.00 MHz OSC2 11 24.00 MHz CERAMIC RESONATOR SUCH AS: AVX KBR-24.00MSA or MURATA CSA24.00MXZ040 SURFACE 2N3904 13 D– 14 D+ 10 XTALIN CYPRESS CY7C63000A-PC P0.0 1 3 P0.2 4 P0.3 16 P1.1 P0.2 15 3 XB 4 YB 5 YA 15 NRESET ADNS 2001 OSC1 GND GND PS2_C PS2_D 10 12 1 16 20 19 6 7 8 18 17 PANASONIC EVQ SERIES ENCODER BUTTONS L R M INTERNAL IMAGE SENSOR HDNS-2100 LENS Notes: 1. Due to the Cypress implementation of USB suspend mode support, the NRESET pin of the ADNS-2001 must be reset using a line from the Cypress chip. The reason for this is that the Cypress chip does not configure the port input pins until after it has received a bus reset from the USB port. The unconfigured input port pins present a 16 KΩ pullup to VCC. If a cap is used on NRESET (pin 15), this pullup will result in the ADNS-2001 seeing a high on the MODE pin and powering up in the PS/2 mode. 2. The quadrature input pins of the Cypress part must be programmed to be Hi-Z, instead of the normal current pulldowns. This ensures that the ADNS-2001 will be able to pull the quadrature lines high over all conditions of voltage and temperature. 3. 0.1 µF between pins 7 and 8 must be ceramic, and must be trace lengths less than 5 mm. 5 www.DataSheet4U.com Recommended LED Bin Table LED Bin Category K L M N P Q R S T R1 Value 69.8 Ω 69.8 Ω 69.8 Ω 69.8 Ω 69.8 – 78.7 Ω 69.8 – 93.1 Ω 69.8 – 113 Ω 69.8 – 137 Ω 69.8 – 169 Ω The 69.8 Ω resistor is determined by the absolute maximum rating of 50 mA for the HLMP-ED80. The other resistor values for brighter bins will guarantee good signals with reduced power. For the IEC 60825-1 eye safety consideration, please contact sales representative for the technical report. Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Lead Solder Temperature Symbol TS TA Min. –40 0 Max. 85 40 260 Units ˚C ˚C ˚C Notes For 10 seconds, 1.6 mm below seating plane (see HLMP-ED80 data sheet for LED solder specifications) Supply Voltage Supply Voltage ESD Input Voltage Input Voltage VDD3 VDD5 Vin Vin –0.5 –0.5 –0.5 –0.5 3.6 5.5 2 VDD5 + 0.5 VDD3 + 0.5 V V kV V V All pins, Human Body Model All I/O except OSC1 and OSC2 OSC1 and OSC2 6 www.DataSheet4U.com Recommended Operating Conditions Parameter Operating Temperature Supply Voltage Supply Voltage Clock Frequency Resonator Impedance Reset Capacitor Distance from Lens Reference Plane to Surface Speed Acceleration Light Level onto IC Symbol TA VDD3 VDD5 CLK XRES CRESET A S ACC IRRINC 40 Min. 0 3.15 4.25 23.88 17.4 0.001 2.3 0 0 0 Typ. 3.3 5.0 24.00 18.432 0.22 2.4 Max. 40 3.45 5.5 24.12 18.7 40 10.0 2.5 16 39 0.2 2500 0 Units ˚C V V MHz Ω µF mm in/sec cm/sec g mW/m^2 λ = 639 nm Notes Set by ceramic resonator For generic PS/2 operation Dimension A on HDNS-2100 data sheet DC Electrical Specifications Electrical Characteristics over recommended operating conditions. Typical values at 25˚C, VDD3 = 3.3, VDD5 = 5.0, Clock = 24 MHz. Parameter Symbol Supply Current (Mouse Moving) IDD3 Supply Current (Mouse Moving) IDD5 Supply Current (Mouse Not Moving) IDD5 Input Low Voltage VIL Input High Voltage VIH Output Low Voltage (LED) VOL Output Low Voltage (XA, XB, YA, YB) VOL Output High Current (XA, XB, YA, YB) IOH Output High Current (LED) IOHBD Input Pullup (RB, MB, LB) I PU Output Low Voltage (PS/2) VOL Output Pullup Current (PS/2) IOH Reset Pullup Current IRESET Min. Typ. 12.1 6.1 2.5 Max. 20.1 12.4 0.8 2 0.3 100 1.5 100 300 5 300 3.1 300 0.41 625 10 0.5 0.5 600 6 600 0.5 1500 20 Units mA mA mA V V V V µA mA µA V µA µA Notes Pin 6 = 0.6 V Pin 6 = 0.6 V IOL = 2 mA IOL = 4 mA VOH = 2.1 V VBE = 0