ADNS-3050

ADNS-3050 Entry-level Gaming Optical Navigation Sensor Data Sheet Description Features The Avago Technologies ADNS-3050 is a small form factor entry-level gaming optical navigation sensor. It is housed in an 8-pin staggered dual in-line package (DIP). It is capable of high-speed motion detection typically at 60ips and acceleration up to 20g; suitable for both wired and wireless gaming navigation system. The low power management in wireless mode can be customized to suit user preferences. In addition, it has an on-chip oscillator and LED driver to minimize external components.  Small Form Factor Package - 8-pin DIP The ADNS-3050 sensor along with the ADNS-5110-001 lens, ADNS-5200 clip, and HLMP-EG3E red LED forms a complete and compact mouse tracking system. There are no moving parts, which translates to high reliability and less maintenance for the end user. Precision optical alignment is not required, thus facilitating high volume assembly. Theory of Operation The ADNS-3050 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 ADNS-3050 contains an Image Acquisition System (IAS), a Digital Signal Processor (DSP), and a four wire serial port. The IAS acquires microscopic surface images via the lens and illumination system. These images are processed by the DSP to determine the direction and distance of motion. The DSP calculates the ΔX and Δy relative displacement values. An external microcontroller reads and translates the ΔX and Δy information from the sensor serial port into PS2, USB, or RF signals before sending them to the host PC.  Operating Voltage: 2.8V-3.0V  High Speed Motion Detection at typical of 60ips and acceleration up to 20g.  Selectable Resolutions up to 2000cpi  Four wire Serial Port Interface  External Interrupt Output for Motion Detection  Internal Oscillator — no clock input needed  On-chip LED driver  Minimal number of passive components  Programmable power-saving modes for selectable wired or wireless application  Customizable response time and downshift time for rest modes  Configurable LED operating modes and drive current Applications  Wired and Wireless Optical gaming mice and trackballs  Integrated input devices  Battery-powered input devices NOTE: The ADNS-3050 sensor is not designed for use with blue LED navigation system. Pinout of ADNS-3050 Optical Mouse Sensor Name Input/ Output 1 MISO O Serial Data Output (Master In/Slave Out) 2 LED I LED Illumination Control Input 3 MOTION O Motion Interrupt Output (Active low,) 4 NCS I Description 5 SCLK 6 GND Chip Select (Active low) 7 VDD 8 MOSI 5 SCLK I Serial Clock Input 6 GND I Ground 7 VDD I Supply Voltage 8 MOSI I Serial Data Input (Master Out/Slave In) 3 MOTION 2 LED 1 MISO Pin 1 Figure 1. Package Outline Drawing (Top View) Figure 2. Package Outline Drawing CAUTION: It is advised that normal static precautions be taken in handling and assembling of this component to prevent damage and/or degradation which may be induced by ESD. 2 4 NCS A3050 XYYWWZ Pin Overview of Optical Mouse Sensor Assembly Avago Technologies provides an IGES file drawing describing the base plate molding features for lens and PCB alignment. The ADNS-3050 sensor is designed for mounting on a through-hole PCB. There is an aperture stop and features on the package that align to the lens. The ADNS-5110-001 lens provides optics for the imaging of the surface as well as illumination of the surface at the optimum angle. Features on the lens align it to the sensor, base plate, and clip with the LED. The ADNS-5200 clip holds the LED in relation to the lens. The LED must be inserted into the clip and the LED‘s leads formed prior to loading on the PCB. The HLMP-EG3E red LED is recommended for illumination. Notes: 1. Dimensions in millimeter/inches 2. View from component side of PCB (or top view of mouse) Figure 3. Recommended PCB Mechanical Cutouts and Spacing 3 TOP VIEW CROSS SECTION SIDEVIEW Important Note: Pin 1 of sensor should be located nearest to the LED Figure 4. 2D Assembly drawing of ADNS-3050 (Top and Side View) Note: A – Distance from object surface to lens reference plane B – Distance from object surface to sensor reference plane Figure 5. Distance from lens reference plane to tracking surface (Z) 4 HLMP-EG3E LED ADNS-5200 LED Clip ADNS-3050 (Sensor) Customer supplied PCB ADNS-5110-001 Customer supplied base plate with recommended alignment features per IGES drawing Important Note: IR LED is recommended for lower power consumption. Figure 6. Exploded View of Assembly PCB Assembly Considerations 4. This sensor package is only qualified for wave-solder process. 5. Wave solder the entire assembly in a no-wash solder process utilizing solder fixture. The solder fixture is needed to protect the sensor during the solder process. It also sets the correct sensor-to-PCB distance as the lead shoulders do not normally rest on the PCB surface. The fixture should be designed to expose the sensor leads to solder while shielding the optical aperture from direct solder contact. 6. Place the lens onto the base plate. 7. Remove the protective Kapton tape from optical aperture of the sensor. Care must be taken to keep contaminants from entering the aperture. Recommend not to place the PCB facing up during the entire mouse assembly process. Recommend to hold the PCB first vertically for the Kapton removal process. 8. Insert PCB assembly over the lens onto the base plate aligning post to retain PCB assembly. The sensor aperture ring should self-align to the lens. 5 10. Install mouse top case. There MUST be a feature in the top case to press down onto the PCB assembly to ensure all components are interlocked to the correct vertical height. ADNS-3050 VDD GND IMAGE ARRAY DSP LED SERIAL PORT AND REGISTERS 3. Insert the LED clip assembly into PCB. POWER AND CONTROL 2. Insert the LED into the assembly clip and bend the leads 90 degrees. 9. The optical position reference for the PCB is set by the base plate and lens. Note that the PCB motion due to button presses must be minimized to maintain optical alignment. LED DRIVE 1. Insert the sensor and all other electrical components into PCB. OSCILLATOR Figure 7. Block diagram of ADNS-3050 optical mouse NCS SCLK MOSI MISO MOTION      +:)/PPZD\ 9%86 ' ' *1' 6+,(/'  5 N & Q) & S) 9''       &21 5 5      -7$* & Q) 5 N 9'' 3&%B62&.(7B;3 5 5 & S) & S) 5 N         & X)9 & S) & Q) 9&&  =% 3 3 3 &211(&7723&%  =$  0&8 3 3 3 3 3 3 3 3 36&/. 30,62 3026, 31&6 3 3 3 3 3 3 3 3 3 3 =(QFRGHU &&.567 3&' 3 3 95(*,1 9%86 ' ' 8 & S)                       & X)9 /(' /(' /(' =% =$ 6:B/()7 6:B5,*+7 6:B0,' &3, &3, 6&/. 0,62 026, 1&6 027,21 & Q) 9'' 6 Figure 8. Schematic diagram for interface between ADNS-3050 and microcontroller with HLMP-EG3E Red LED on a corded solution NOTE: The ADNS-3050 Optical Mouse Sensor is not designed for use with blue LED navigation system. 5 : * % 6 + 5 5 & X)9 9&&  9'' &) *1'  6:   6:    6:  0LGGOH%XWWRQ  5LJKW%XWWRQ  /HIW%XWWRQ & X)9 6&/. 0,62 026, 1&6 027,21 5 5 9'' &3, &3,  ' +/03(' &21     /(' /(' /(' $'166HQVRU%ORFN $'16 8 5 5 ;