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ADNB 7051 EV and ADNB 7052 EV Low Power Laser Mouse Bundles Data Sheet Description The Avago Technologies ADNB 7051 EV and ADNB 7052 EV low power laser mouse bundles are the laser illuminated system enabled for cordless application Powered by Avago Technologies LaserStream technology the mouse can operate on many surfaces that proved difficult for traditional LED based optical navigation Its low power architecture is capable of sens ing mouse motion while prolonging battery life two performance areas essential in demanding cordless applications ADNB 7051 EV and ADNB 7052 EV Low Power Laser Mouse Bundles include Bundle Part NumberPart NumberDescription ADNB 7051 EVADNS 7050Low Power Laser Mouse Sensor ADNV 6340Single Mode Vertical Cavity Surface Emitting Laser VCSEL ADNS 6120Laser Mouse Round Lens ADNS 6230 001Laser Mouse VCSEL Assembly Clip Bundle Part NumberPart NumberDescription ADNB 7052 EVADNS 7050Low Power Laser Mouse Sensor ADNV 6340Single Mode Vertical Cavity Surface Emitting Laser VCSEL ADNS 6130 001Laser Mouse Trim Lens ADNS 6230 001Laser Mouse VCSEL Assembly Clip The ADNS 7050 sensor along with the ADNS 6120 or ADNS 6130 001 lens ADNS 6230 001 clip and ADNV 6340 VCSEL form a complete and compact laser mouse tracking system There is no moving part which means high reliability and less maintenance for the end user In addition precision opti cal alignment is not required facilitating high volume assembly This document will begin with some general information and usage guide lines on the bundle set followed by individual detailed information on ADNS 7050 laser mouse sensor ADNV 6340 VCSEL ADNS 6120 or ADNS 6130 001 lens and ADNS 6230 001 clip 2 Overview of Laser Mouse Sensor Assembly Figure 1 2D Assembly drawing of ADNB 7052 EV top and cross sectional view A7050 XYYWWZ 16 00 0 630 31 17 1 227 BASE PLATE SURFACE CLIP SENSOR PCB 15 37 0 605 SURFACE TO VCSEL BODY 20 49 0 807 TOP OF PCB TO BOTTOM OF SENSOR 3 20 0 126 3 75 0 148 VCSEL PCB TOP OF PCB TO TOP OF LENS FLANGE 2 40 0 094 BOTTOM OF LENS FLANGE TO SURFACE 3 2D Assembly Drawing of ADNB 7051 52 EV PCBs and Base Plate Figure 2 Exploded view drawing Shown with ADNS 6130 001 Laser Mouse Lens ADNS 6230 001 VCSEL As sembly Clip and ADNV 6340 VCSEL The components interlock as they are mounted onto defined features on the base plate The ADNS 7050 laser mouse sensor is designed for mounting on a through hole PCB looking down There is an aperture stop and features on the package that align to the lens The ADNV 6340 VCSEL is recommended for illumination provides a laser diode with a single longitudinal and a single transverse mode It is particu larly suited as lower power consumption and highly coherent replacement of LEDs It also provides wider operation range while still remaining within single mode reliable operating conditions The ADNS 6120 or ADNS 6130 001 Laser Mouse Lens is designed for use with ADNS 7050 sensor and the illumination subsystem provided by the assembly clip and the VCSEL Together with the VCSEL the lens provides the directed illumination and optical imaging necessary for proper operation of the Laser Mouse Sensor ADNS 6120 and ADNS 6130 001 are precision molded optical components and should be handled with care to avoid scratching of the optical surfaces ADNS 6120 also has a large round flange to provide a long creepage path for any ESD events that occur at the open ing of the base plate The ADNS 6230 001 VCSEL Assembly Clip is designed to provide mechanical coupling of the ADNV 6340 VCSEL to the ADNS 6120 or ADNS 6130 001 lens This coupling is essential to achieve the proper illumination alignment required for the sensor to operate on a wide variety of surfaces Avago Technologies provides an IGES file drawing describing the base plate molding features for lens and PCB alignment ADNS 6230 001 CLIP ADNV 6340 VCSEL CUSTOMER SUPPLIED VCSEL PCB ADNS 7050 SENSOR ADNS 6130 001 LENS or ADNS 6120 FOR ROUND LENS CUSTOMER SUPPLIED PCB CUSTOMER SUPPLIED BASE PLATE WITH RECOMMENDED FEATURES PER IGES DRAWING 4 Figure 3 Recommended PCB mechanical cutouts and spacing 9 Tune the laser output power from the VCSEL to meet the Eye Safe Class I Standard as detailed in the LASER Power Adjustment Procedure 10 Install the mouse top case There must be a feature in the top case or other area to press down onto the sensor to ensure the sensor and lens are interlocked to the correct vertical height Assembly Recommendation 1 Insert the sensor and all other electrical components into the applica tion PCB main PCB board and VCSEL PCB board 2 Wave solder the entire assembly in a no wash solder process utilizing a 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 3 Place the lens onto the base plate 4 Remove the protective kapton tape from the optical aperture of the sensor Care must be taken to keep contaminants from entering the aperture 5 Insert the PCB assembly over the lens onto the base plate The sensor aperture ring should self align to the lens The optical position refer ence 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 6 Remove the protective cap from the VCSEL 7 Insert the VCSEL assembly into the lens 8 Slide the clip in place until it latches This locks the VCSEL and lens together Design Considerations for Improving ESD Performance For improved electrostatic discharge performance typical creepage and clearance distance are shown in the table below Assumption base plate construction as per the Avago Technologies supplied IGES file and ADNS 6130 001 trim lens or ADNS 6120 round lens Typical DistanceMillimeters Creepage12 0 Clearance2 1 Note that the lens material is polycarbonate and therefore cyanoacrylate based adhesives or other adhesives that may damage the lens should NOT be used 0 0 000 0 89 0 035 0 2 0 008 12 6 0 496 11 0 0 433 6 3 0 248 1 6 0 063 1 78 0 070 14 84 0 584 15 15 0 596 25 0 0 984 36 0 1 417 2 mm MAX COMPONENT HEIGHT CLEAR ZONE 2 mm MAX COMPONENT HEIGHT RECOMMENDED FINGER CLEARANCE ZONE BOTH SIDES DIMENSIONS IN MILLIMETERS INCHES 10 0 0 394 18X 0 75 0 030 RECOMMENDED MAX 6X R 0 75 0 030 0 PIN 1 HOLE 0 22 6 0 890 12 6 0 496 OPTICAL NAVIGATION CENTER 5 Figure 4 Sectional view of PCB assembly highlighting optical mouse components Figure 5a Schematic diagram for 3 button scroll wheel corded mouse LENS CLIP PCB SURFACE VCSEL PCB SENSOR BASE PLATE VCSEL S4B4 C14 4 7uF U1 SPCP825A 20 Pin OTP 2 3 4 7 8 9 10 16 15 14 13 17 18 19 20 5 6 12 11 1 XI XO VSS PB0 PB1 PB2 PB3 PA0 PA1 PA2 PA3 PC0 DM DA DP CK VC PA6 PA7 PA4 PA5 VDD V3 3 S3SWM 800 CPI U4 93C46 81 27 6 5 3 4 VCCCS SKNC ORG GND DI DO KEY EPROMCS R9 10K 5 Key OEM ODM V3 3 VCC C12 1uF C4 100pF VCC R2 100K Closed to Sensor R2 Y S Chuang LB C3 4 7uF 12Hz R4 22K ADNS 7050 U2 8 6 9 11 7 10 16 3 2 4 1 5 18 17 16 15 13 12 XY LASER LASER NEN AGND AGND LASER GND AVDD VDD SCLK MISO MOSI NCS MOTION NC NC NC GND GND GND Key Mode Selection SCLK GND S2SWR C15 0 1uF RB Analog PWR R8 330 ohm MOSI Mounted S1SWL C2 10uF Closed to Sensor AGND VCC Buttons VCC MB ZA EEPROM for Laser Eye Safety for Sun ALPC LD2 CPI LED 1200 CPI Not Mounted LD1 VCSEL 12 C9 0 1uF JP1 USB PS2 Connector 1 2 3 4 5 2Hz R1 MISO R6 22K C6 0 1uF R7 2K VCC 3 3V Regulator Optional S6 ISS BT LD2 Flash Freq MISO Mounted SCLK C1 0 1uF Laser PWR ZB Optional unused R3 Mounted U3 C14 C15 Not Mounted VCC Closed to Sensor DGND 600 CPI C5 100pF VCC LB R5 22K C7 4 7uF MSE SPCP825A A7050 MZ ALPC SPA2 ISS Laser Mouse A7050 with SALPC B 11Saturday January 21 2006 Title Size Document Number Rev Date Sheetof Sunplus ENG AP Drawn Check By GND C13 470pF C8 0 1uF CPI LED C10 0 1uF S5B5 3 Key B5 DN 6Hz Q1 2N3906 3 2 1 Optional used R3 Not Mounted U3 C14 C15 Mounted B4 UP NCS V3 3 C11 1uF RB Digital PWR V3 3 Z1 Z Encoder 2 3 1 Not Mounted ISS SW Optional V3 3 REGULATOR U3SPY0029A TO 89 32 1 VoutVin Vss D C SPCP18A 016A Mask R3 10ohm KEY EPROMCS V3 3 4th 5th Buttons by Straps Optional Z Axis C16 0 1uF VCC CPI MOSI XT1 6MHz R1 100K 6 Figure 5b Schematic diagram for 3 button scroll wheel cordless mouse EEPROM CS R2 22K C8 1 0pF C35 0 1uF DIR2 R6 MISO Mounted Power Down SW Optional MOSI U3 93C46 81 27 6 5 3 4 VCCCS SKDC NC GND DI DO 400 CPI CPI LED C38 22pF C33 20pF MCUVCC MISO C3 22pF Mounted DIR1 R6 10K Not Mounted R31 1M D C RB LD2 BAT LOW 800 CPI 8MHz XT1 ALPC Connection MB LB ALPC E D R3 ANT length 32mm width 0 5mm 20mil MCUVCC 90 degree ALPC MCUVCC MCUVCC R7 10K Closed to IC NCS Battery Low LED SCLK PA2 2 4GHz RF ISS Optical Mouse Tx MCU Board B 12Friday February 24 2006 Title Size Document Number Rev Date Sheetof Sunplus ENG AP Drawn Check By Mounted R3 0ohm MISO RB J5 1 SCLK C36 20pF Enable CPI LED BAT RF CS 0 degree Not mounted if 3 pin resonator TBD B4 UP LD3 CPI LED Closed to IC J3 1 Disable C1 22pF R10 1M SW4 B4 UP 180 degree 2 7 4 7nH ZA J6 1 EEPROM CS 2Hz R32 10K Closed to IC 2 4GHZ 1W ISS MSE MC02A 066A A6030 TX NTEST R22 330 SW8 PD SW Mounted TBD R11 10 C32 1 2pF R8 330 ohm R24 330 R14 2M LD3 Flash Freq C39 22pF 270 degree Not Mounted SCLK Closed to MCU C15 0 22uF ALPC EN DISABLE RFVCC 600 CPI WAKE UP RF PWR L1 3 6nH R1 1M Not Mounted Not Mounted RFVCC RF CE C5 1000pF C10 0 5pF R23 330 NCS TX1 Antenna Not Mounted NTEST L4 Value R13 10 Sensor Orientation 6Hz Closed to IC DIR1 R5 Mounted R21 330 SW5 B5 DN R20 1K C4 2200pF J8 1 D C C2 22pF U1 NRF2402 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CE CS CLK DIN VSS XC2 XC1 VDD VSS PA ANT1 ANT2 VDD PA VDD IREF VSS PWR UP CPI DIR2 L3 Value MountedMounted ZB B5 DN Not Mounted ISS SW Optional LB BIND U2 SPMC02A 066A 24 23 4 58 7 11 25 26 3 6 22 12 17 13 15 1 28 21 20 19 18 9 10 16 2 27 14 VDD GND OSCO OSCIPA6 PA7 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PC0 PC5 PC6 PC7 PA0 PA1 PA2 PA3 PA5 PA4 PC1 PC2 PC3 PC4 R18 2M C6 0 01uF MOSI J7 1 VCC J22 HEADER 8X2 12 34 56 78 910 1112 1314 1516 J4 1 C40 22pF Sensor Orientation L2 22nH C16 4 7uF MOSI 12Hz DIR2 R7 C37 22pF R5 0 EEPROM CS SW6 ISS BT C9 1 0pF Not Mounted MOTION C34 0 1uF X1 16MHZ TBD R4 U1 nRF2401 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CE DR2 CLK2 DOUT2 CS DR1 CLK1 DATA DVDD VSS XC2 XC1 VDD PA ANT1 ANT2 VSS PA VDD VSS IREF VSS VDD VSS PWR UP VDD RF DATA U2 SPCP18A 011A 1 4 3 2 5 6 7 8 13 16 15 14 12 11 10 9 VDD GND OSCO OSCI KEY BIND RF SCL SDA RFDR VC DP CK DM DA RFDATA RFCLK RFCS RFCE 2 4GHz 1way RF Mouse Receiver 16Pin MSE CLK D R2 22K 5 Buttons C2 22pF R6 470 R12 22K R13 22K XT1 6MHz FrankLin 20ppm VCCMCU RF CLK C1 22pF Rx Antenna C10 4 7uF X1 16MHZ D C 3Buttons RF DATA R10 22K R14 33K C3 22pF VCCMCU Mounted C6 0 01uF LD1 RF Data 12 C13 4 7uF V3 3 R19 10 ohm Not Mounted V3 3 R15 33K C15 0 1uF RF CE C11 10uF U4 SPY0029 2 1 3 VI GND VO 3 5 Buttons RF CE C12 0 1uF ANT length 63mm width 0 5mm R5 SW1 BIND RF CLK L1 3 6nH C14 0 1uF R4 100K R1 1M RF CS RF Band Side Mounted 3 3 Regulator Circuit Optional C8 1pF C4 2200pF U3 24C01 81 27 6 5 3 4 VCCA0 A1WP SCL SDA A2 VSS C9 1pF C7 0 033uF ID Button 3 3 Regulator Circuit Not used U4 C15 C16 Not Mounted R19 Mounted VCCMCU MSE DATA D 2 4GHZ 1W MSE RX CP18A nRF2401 CRPA4 B 12Thursday December 29 2005 Title Size Document Number Rev Date Sheetof Sunplus ENG AP Drawn Check By R9 22K L2 22nH R5 100K J1 MSE Connector 1 2 3 4 RF DR R17 33K C5 1000pF R18 33K C17 Value VCCMCU RF CS VCCMCU V3 3 VCCMCU Not Mounted RF DR C16 0 1uF L5 100uH C47 470pF MISO ADNS 7050 U4 8 6 11 9 7 10 16 1 2 3 4 5 14 17 18 13 12 15 XY LASER LASER NEN AGND AGND LASER GND AVDD VDD NCS MISO SCLK MOSI MOTION NC NC NC GND GND GND MCUVCC C49 0 1uF SW1 LB AVDD SW2 RB 5 NCS 1 MCUVCC C45 1uF C48 47uFBT1 3V 12 DVDD MOSI C25 0 01uF SW7 BINDR26 4 7K Not Mounted if good signal quality C52 2200pF LVDD C51 0 1uF RFVCC DVDD RFVCC C46 1uF MCUVCC C41 0 1uF R30 10 U5XC6383A 301PR 32 1 LxVout Vss C42 1uF C50 0 1uF D C SCLK R28 120K J2 HEADER 8X2 12 34 56 78 910 1112 1314 1516 R27 10 SW3 MB SW6 Z Encoder 3 2 1 C44 0 1uF Q1 2N3906 3 2 1 2 4GHZ 1W MSE MC02A A7050 TXPA1 A7050 Sensor Board B 22Thursday December 22 2005 Title Size Document Number Rev Date Sheetof Sunplus ENG AP Drawn Check By R29 10 C43 0 1uF D3 1N5819 12 LVDD3 0V AVDD C26 0 01uF LD1 VCSEL 12 7 Notes The supply and ground paths should be laid out using a star methodology Level shifting is required to interface a 5V micro controller to the ADNS 7050 If a 3V micro controller is used the 74VHC125 component shown may be omitted LASER Drive Mode The laser is driven in pulsed mode during normal operation A calibration mode is provided which drives the laser in continuous CW operation Eye Safety The ADNS 7050 and the associated components in the schematic of Figure 5 are intended to comply with Class 1 Eye Safety Requirements of IEC 60825 1 Avago Technologies suggests that manufacturers perform testing to verify eye safety on each mouse It is also recommended to review possible single fault mechanisms beyond those described below in the section Single Fault Detection Under normal conditions the ADNS 7050 generates the drive current for the laser diode ADNV 6340 In order to stay below the Class 1 power requirements LASER CTRL0 register 0 x1a LASER CTRL1 register 0 x1f LSRPWR CFG0 register 0 x1c and LSRPWR CFG1 register 0 x1d must be programmed to appropriate values The system comprised of the ADNS 7050 and ADNV 6340 is designed to maintain the output beam power within Class 1 requirements over components manufacturing tolerances and the recommended temperature range when adjusted per the procedure below and imple mented as shown in the recommended application circuit of Figure 5 For more information please refer to Eye Safety Application Note AN 5230 LASER Power Adjustment Procedure 1 The ambient temperature should be 25 C 5 C 2 Set VDD to its permanent value 3 Set the Range bit bit 7 of register 0 x1a to 0 4 Set the Range C complement bit bit 7 of register 0 x1f to 1 5 Set the Match bit bit 5 of register 0 x1a to the correct value for the bin designation of the laser being used 6 Set the Match C bit bit 5 of register 0 x1f to the complement of the Match bit 7 Enable the Calibration mode by writing to bits 3 2 1 of register 0 x1A so the laser will be driven with 100 duty cycle 8 Write the Calibration mode complement bits to register 0 x1f 9 Set the laser current to the minimum value by writing 0 x00 to register 0 x1c and the complementary value 0 xFF to register 0 x1d 10 Program registers 0 x1c and 0 x1d with increasing values to achieve an output power as close to 506uW as possible without exceeding it If this power is obtained the calibration is complete skip to step 14 11 If it was not possible to achieve the power target set the laser current to the minimum value by writing 0 x00 to register 0 x1c and the comple mentary value 0 xff to register 0 x1d 12 Set the Range and Range C bits in registers 0 x1a and 0 x1f respectively to choose to the higher laser current range 13 Program registers 0 x1c and 0 x1d with increasing values to achieve an output power as close to 506uW as possible without exceeding it 14 Save the value of registers 0 x1a 0 x1c 0 x1d and 0 x1f in non volatile memory in the mouse These registers must be restored to these values every time the ADNS 7050 is reset 15 Reset the mouse reload the register values from non volatile memory enable Calibration mode and measure the laser power to verify that the calibration is correct Good engineering practices such as regular power meter calibration random quality assurance retest of calibrated mice etc should be used to guarantee performance reliability and safety for the product design LASER Output Power The laser beam output power as measured at the navigation surface plane is specified below The following conditions apply 1 The system is adjusted according to the above procedure 2 The system is operated within the recommended operating temperature range 3 The VDD value is no greater than 300mV above its value at the time of adjustment 4 No allowance for optical power meter accuracy is assumed Parameter Symbol Minimum Maximum Units Notes Laser out LOP716 WClass 1 limit with put powerrecommended VCSEL and lens Disabling the LASER LASER NEN is connected to the gate of a P channel MOSFET transistor which when ON connects VDD to the LASER In normal operation LASER NEN is low In the case of a fault condition ground or VDD3 at XY LASER LASER NEN goes high to turn the transistor off and disconnect VDD3 from the LASER Single Fault Detection ADNS 7050 is able to detect a short circuit or fault condition at the XY LASER pin which could lead to excessive laser power output A path to ground on this pin will trigger the fault detection circuit which will turn off the laser drive current source and set the LASER NEN output high When used in combination with external components as shown in the block diagram below the system will prevent excess laser power for a resistive path to ground at XY LASER by shutting off the laser In addition to the ground path fault detection described above the fault detection circuit is continuously checked for proper operation by internally generating a path to ground with the laser turned off via LASER NEN If the XY LASER pin is shorted to VDD3 this test will fail and will be reported a a fault 8 Figure 6 Single fault detection and eye safety feature block diagram VDD VDD LASER NEN S G D FAULT CONTROL BLOCK ADNS 7050MICROCONTROLLER XY LASER VOLTAGE SENSE LASER DRIVER GND VCSEL SERIAL PORT CURRENT SET P MOSFET or PNP BJT 9 ADNS 7050 Laser Mouse Sensor Data Sheet Theory of Operation The ADNS 7050 is based on LaserStream Technology which measures changes in position by optically acquiring sequential surface images frames and mathematically determining the direction and magnitude of movement The ADNS 7050 con