PAW3602DH-NF PAW3602DH-NF CMOS LASER MOUSE SENSOR General Description PAW3602DH-NF is a CMOS laser mouse sensor with DSP integration chip that serves as a non-mechanical motion estimation engine for implementing a computer mouse. Features Key Specification Single power supply Precise laser motion estimation technology Complete 2-D motion sensor No mechanical parts Accurate motion estimation over most of Speed surfaces 28+ inches/sec High speed motion detection up to 28 Acceleration inches/sec and acceleration can be up to 20g 20g High resolution up to 1600cpi Power down pin and register setting for low power dissipation Power Supply 4.25V ~ 5.5V (VDD) 3.0V~3.6V (VDDD, VDDA) System Clock 27 MHz Resolution Frame Rate Power saving mode during times of no movement Operating Serial Interface for programming and data Current (Sensor + LD) transfer Low power for wireless application Eye safety protection circuit Package 800/1600cpi 6600 frames/sec 17 mA @Mouse moving (Normal) 5 mA @Mouse not moving (Sleep) 200 uA @Shutdown mode Shrunk DIP20 Ordering Information Order number PAW3602DH-NF I/O CMOS output Resolution 800/1600 cpi All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 1 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 1. Pin Description Pin No. Name Type Definition LD control LD control Resonator output Resonator input Chip digital power, 3.3V Chip digital ground Chip analog ground Chip power, 5V power supply Chip analog power, 3.3V Connect to resistor input LD BIST mode input / YA quadrature output LD BIST mode input / YB quadrature output LD BIST mode input / XA quadrature output LD BIST mode fail output / XB quadrature output CPI select pin ¾ Pull-high to VDD: 800 cpi (Default) ¾ Pull-down to GND: 1600 cpi LD test pin ¾ Floating (Chip internal pull-down): Disable LD test mode ¾ Pull-high (3.3V ONLY) : Enable LD test mode No connection Serial interface clock Serial interface bi-direction data Power down pin, active high 1 2 3 4 5 6 7 8 9 10 11 12 13 14 LD_P LD_N OSCOUT OSCIN VDDD VSSD VSSA VDD VDDA LDRES YA YB XA XB PWR PWR OUT IN PWR GND GND PWR PWR IN I/O I/O I/O OUT 15 CPI IN 16 LDTEST IN 17 18 19 20 NC SCLK SDIO PD IN I/O IN All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 2 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor VOLTAGE REGULATOR AND POWER CONTROL QUADRATURE OUTPUT 2. Block Diagram and Operation Figure 3. Block Diagram The PAW3602DH-NF is a high performance CMOS laser mouse sensor with DSP integration chip that serves as a non-mechanical motion estimation engine for implementing a computer mouse. It is based on new laser speckle navigation technology. In the laser mouse, it uses laser diode (LD), specially uses VCSEL (Vertical Cavity Surface Emitting Laser) as light source, where laser is one kind of coherent light. When this light illuminates on the working surface, the surface will reflect and diffuse the incident light and generates speckle pattern. The imaging sensor in the laser mouse chip detects the speckle pattern that generated from the working surface and determines the movement and direction. Since the speckle pattern can be generated on the most of the surface if this surface is not perfect smooth or transparent, the laser mouse can adapt on more surfaces as compared with traditional LED-based optical mouse. The PAW3602DH-NF has an extra function, eye safety protection circuit. The embedded eye safety protection circuit will detect if LD_P pin is short to power, if LD_N pin is short to ground, or if LD_RES pin is short to ground to be a large LD power. And this will protect users from eye injured for large LD power. This mouse sensor is in a 20-pin optical package. The output format is two-channel quadrature (X and Y direction), which emulates encoder phototransistors. The current X and Y information are also available in registers accessed via a serial port. The word "mouse sensor," instead of PAW3602DH-NF, is used in the document. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 3 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 3. Registers and Operation The mouse sensor can be programmed through registers, via the serial port, and DSP configuration and motion data can be read from these registers. All registers not listed are reserved, and should never be written by firmware. 3.1 Registers Address Name R/W Default 0x00 Product_ID R 0x30 0x01 Product_ID R 0x3N 0x02 0x03 0x04 0x05 0x06 0x07 Motion_Status Delta_X Delta_Y Operation_Mode Configuration Image_Quality R R R R/W R/W R - Data Type Eight bits [11:4] number with the product identifier Four bits [3:0] number with the product identifier Reserved [3:0] number is reserved for further Bit field Eight bits 2’s complement number Eight bits 2’s complement number Bit field Bit field Bit field 3.2 Register Descriptions 0x00 Bit Product_ID 7 6 5 4 3 2 1 0 Field PID[11:4] Usage The value in this register can’t change. It can be used to verify that the serial communications link is OK. 0x01 Product_ID Bit Field Usage 7 6 5 PID[3:0] 4 3 2 1 0 Reserved [3:0] The value in this register can’t change. PID[3:0] can be used to verify that the serial communications link is OK. Reserved[3:0] is a value between 0x0 and 0xF, it can’t be used to verify that the serial communication. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 4 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 0x02 Motion_Status Bit 7 Field Motion Usage 6 5 Reserved[3:2] 4 3 DYOVF DXOVF 2 1 0 Reserved[1:0] RES Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If so, then the user should read registers 0x03 and 0x04 to get the accumulated motion. It also tells if the motion buffers have overflowed since the last reading. The current resolution is also shown. Reading this register freezes the Delta_X and Delta_Y register values. Read this register before reading the Delta_X and Delta_Y registers. If Delta_X and Delta_Y are not read before the motion register is read a second time, the data in Delta_X and Delta_Y will be lost. Notes Field Name Description Motion Motion since last report or PD 0 = No motion (Default) 1 = Motion occurred, data ready for reading in Delta_X and Delta_Y registers Reserved[3:2] Reserved for future DYOVF Motion Delta Y overflow, ΔY buffer has overflowed since last report 0 = No overflow (Default) 1 = Overflow has occurred DXOVF Motion Delta X overflow, ΔX buffer has overflowed since last report 0 = No overflow (Default) 1 = Overflow has occurred Reserved[1:0] Reserved for future RES Resolution in counts per inch 0 = 1600 1 = 800 0x03 Delta_X Bit 7 6 5 4 3 2 1 0 Field X7 X6 X5 X4 X3 X2 X1 X0 Usage X movement is counts since last report. Absolute value is determined by resolution. Reading clears the register. Report range –128~+127. 0x04 Delta_Y Bit 7 6 5 4 3 2 1 0 Field Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 Usage Y movement is counts since last report. Absolute value is determined by resolution. Reading clears the register. Report range –128~+127. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 5 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 0x05 Operation_Mode Bit Field Usage 7 6 5 4 3 2 1 0 LDsht_enh XY_enh Reserved Slp_enh Slp2au Slp2mu Slp1mu Wakeup Register 0x05 allows the user to change the operation of the sensor. Shown below are the bits, their default values, and optional values. Operation_Mode[4:0] “0xxxx”=Disable sleep mode “10xxx”=Enable sleep mode1 “11xxx”=Enable sleep mode2 “1x100”=Force enter sleep23 “1x010”=Force enter sleep13 “1x001”=Force wakeup from sleep mode3 Notes: 1. Enable sleep mode, but disable automatic entering sleep2 mode, that is, only 2 modes will be used, normal mode and sleep1 mode. After 0.45 sec not moving during normal mode, the chip will enter sleep1 mode, and keep on sleep1 mode until moving is detected or wakeup is asserted. 2. Enable sleep mode full function, that is 3 modes will be used, normal mode, sleep1 mode and sleep2 mode. After 0.45 sec not moving during normal mode, chip will enter sleep1 mode, and keep on sleep1 mode until moving is detected or wakeup is asserted. And after 27.3 sec not moving during sleep1 mode, the chip will enter sleep2 mode, and keep on sleep2 mode until detect moving or force wakeup to normal mode. 3. Only one of these three bits slp2mu_enh, slp1mu_enh, and wakeup can be set to 1 at the same time, others have to be set to 0. After a period of time, the bits, which was set to 1, will be reset to 0 by internal signal. Notes Field Name LDsht_enh XY_enh Reserved Slp_enh Slp2au Description LD shutter enable / disable 0 = Disable 1 = Enable (Default) XY quadrature output enable/disable 0 = Disable 1 = Enable (Default) Reserved for future. Must be written to zero Sleep mode enable/disable 0 = Disable 1 = Enable (Default) Automatic enter sleep2 mode enable/disable 0 = Disable (Default) 1 = Enable Slp2mu Manual enter sleep2 mode, set “1” will enter sleep2 and this bit will be reset to “0” Slp1mu Manual enter sleep1 mode, set “1” will enter sleep2 and this bit will be reset to “0” Wakeup Manual wake up from sleep mode, set “1” will enter wakeup and this bit will be reset to “0” All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 6 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 0x06 Configuration Bit 7 Field Reset 6 5 4 3 Reserved[3:2] 2 PD 1 Reserved[1:0] 0 RES Usage The Configuration register allows the user to change the configuration of the sensor. Shown below are the bits, their default values, and optional values. Notes Field Name Description Reset full chip Reset 0 = Normal operation (Default) 1 = Reset the fully chip Reserved[3:2] Reserved for future. Must be written to “00” PD Power down mode 0 = Normal operation (Default) 1 = Power down mode Reserved[1:0] Reserved for future. Must be written to “00” RES Output resolution setting. In the power-on initial state, the resolution is depend on the CPI IO trap select pin. If MCU write the register, it is depend on the register value. 0 = 1600 1 = 800 0x07 Bit Image_Quality 7 6 5 Field 4 3 2 1 0 Imgqa[7:0] Usage Image Quality is a quality level of the sensor in the current frame. Report range 0~255. The minimum level for normally working is 45. Notes Field Name Description Imgqa[7:0] Image quality report range: 0(worst) ~ 255(best). All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 7 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 4. LD BIST (Built in Self Test) Mode The mouse sensor can be performed the LD driver error detection function by manufactures to fit the LD power in eye safety rule. LD BIST mode is enabled by pull-high (3.3V ONLY) the LDTEST pin. Once LDTEST pin is pulled high, the XA, YB, YA pin are changed to be input pin and become the LD test mode input [XA ,YB ,YA] , XA is MSB and YA is LSB. At this moment, XB is also changed to LD test fail output. Pin Name Description LDTEST LD Test Mode disable/enable 0 = Disable (Default) 1 = Enable [XA , YB , YA] “ 000 “ = Mode 0, Measure LD power, BIST if eye safety error detection function is fail in normal mode “ 001 “ = Mode 1, BIST if LD_P error detection function is fail “ 010 “ = Mode 2, BIST if LD_N error detection function is fail “ 011 “ = Mode 3, BIST if LDRES pin is short to GND XB 0 = PASS 1 = FAIL All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 8 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 5. Specifications 5.1 Absolute Maximum Ratings Stresses above those listed under "Absolute Maximum Rating" may cause permanent damage to the device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute maximum rating conditions for extended periods may affect device reliability. Symbol Parameter Min Max Unit TSTG Storage Temperature -40 85 °C TA Operating Temperature -15 55 °C VDC DC Supply Voltage VIN DC Input Voltage Notes -0.5 Vdd1 + 0.3 V -0.5 Vdd2 + 0.5 V -0.5 VDC V All I/O pin except LDTEST pin (LDTEST high is 3.3V only) 260 °C For 10 seconds, 1.6mm below seating plane. Lead Solder Temp ESD 2 kV All pins, human body model MIL 883 Method 3015 5.2 Recommend Operating Condition Symbol Parameter TA Vdd1 Vdd2 Operating Temperature Power Supply Voltage VN Supply Noise Z Distance from Lens Reference Plane to Surface R Resolution SCLK Serial Port Clock Frequency FCLK Clock Frequency FR Frame Rate S Speed Min. Typ. 0 Max. Unit 40 °C 3.0 3.3 3.6 4.25 5 5.5 2.3 V 80 mV 2.4 2.5 mm 800 1600 CPI 10 MHz 27 MHz 6600 frames/s 28 inches/s Notes VDDD, VDDA short VDD Peak to peak within 0 - 80 MHz All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 9 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 5.3 AC Operating Condition Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, Vdd1 = 3.3 V, FCLK = 27 MHz. Symbol Parameter tPDR PD Pulse Register tPD Power Down tPDW PD Pulse Width Min. Typ. Max. Unit 152 500 700 Notes us One frame time maximum after setting PD_enh bit in the Configuration register @6600frame/sec (refer to Figure 14). us From PD↑ (refer to Figure 10) us Pulse width to reset the serial interface (refer to Figure 10). tPUPD Power Up from PD↓ 8 14.5 From PD↓ to valid quad signals. After tPUPD, all registers contain valid data from first image after PD↓. Note that an additional 90 frames for ms Auto-Exposure (AE) stabilization may be required if mouse movement occurred while PD was high (refer to Figure 10). tPU Power Up from VDD↑ 8 14.5 ms From VDD↑ to valid quad signals. 500usec + 90 frames. tHOLD SDIO Read Hold Time us Minimum hold time for valid data (refer to Figure 9). us @6600 frame/sec (refer to Figure 11) tRESYNC Serial Interface RESYNC. 3 1 tSIWTT Serial Interface Watchdog Timer Timeout tr,tf Rise and Fall Times: SDIO 35, 25 ns CL = 30 pF tr,tf Rise and Fall Times: XA, XB, YA, YB 30, 25 ns CL = 30 pF tr,tf Rise and Fall Times: ILD 80, 30 ns LD bin grade: P64; R1 = 13.2 Kohm 1.7 ms @6600 frame/sec (refer to Figure 11) All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 10 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 5.4 DC Operating Condition Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, Vdd1 = 3.3 V, FCLK = 27 MHz. Symbol Parameter Min. Typ. Max. Unit Notes Type: PWR IDD Supply Current Mouse moving (Normal) 17 mA Sensor + LD IDD Supply Current Mouse not moving (sleep1) 5 mA Sensor + LD IDDPD Supply Current (Power Down) 200 uA PD, SCLK, SDIO = high Sensor + LD Type: SCLK, SDIO, PD VIH Input voltage HIGH VIL Input voltage LOW VOH Output voltage HIGH VOL Output voltage LOW 2.0 0.7 2.4 0.6 V V @I OH = 2mA (SDIO only) V @I OL = 2mA (SDIO only) Type: LDTEST VIH Input voltage HIGH VIL Input voltage LOW 2.0 V 0.7 V Type: XA, XB, YA, YB VOH Output voltage HIGH VOL Output voltage LOW 2.4 0.6 V @I OH = 2mA V @I OL = 2mA All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 11 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 6. Quadrature Mode The quadrature state of the mouse sensor tells mouse controller which direction the mouse is moving in. The output format is two channels quadrature (X and Y direction), which emulates encoder phototransistors. The DSP generates the ∆x and ∆y relative displacement values that are converted into two channel quadrature signals. The following diagrams show the timing for positive X motion, to the right or positive Y motion, up. 6.1 Quadrature Output Timing X motion to the right Y motion up XA/YA FOUR 38us 38us 38us 38us 38us 38us XB/YB XA/YA THREE 76us XB/YB XA/YA 38us TWO 114us XB/YB XA/YA 152us ONE XB/YB 152us @ 6600frames/second Figure 4. Quadrature output timing All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 12 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 6.2 Quadrature Output State Machine The following state machine shows the states of the quadrature output pins. The three things to note are that state 0 is entered after a power on reset. While the PD pin is asserted, the state machine is halted. Once PD is deasserted, the state machine picks up from where it left off. During times of mouse no movement will entry power saving mode, until mouse was moved. PD POWER ON RESET X/Y output STATE XA/YA XB/YB IR E D IO N N IO -D IR EC T N IO + T EC IR D T EC IR -D STATE 3 (1,0) -D 0 0 1 0 1 2 1 1 3 1 0 + N O TI D IR E N EC IR D IO CT -D IR EC E IR + 0 PD TI O N STATE 1 (0,1) CT IO N PD + CT IO N STATE 0 (0,0) STATE 2 (1,1) PD Figure 5. State machine 6.3 Quadrature Output Waveform The following diagrams show the waveform of the two channel quadrature outputs. If the X, Y is motionless, the (XA, XB), (YA, YB) will keep in final state. Each state change (ex. STATE2 → STATE3) is one count. X MOTION TO THE RIGHT Y MOTION UP ( + DIRECTION ) XA/YA XB/YB STATE0 (0,0) STATE3 (1,0) STATE1 (0,1) +1 +1 STATE2 (1,1) +1 STATE3 (1,0) +1 STATE0 (0,0) MOTION COUNT +1 X MOTION TO THE LEFT Y MOTION DOWN ( - DIRECTION ) XA/YA XB/YB STATE1 (0,1) STATE0 (0,0) STATE3 (1,0) -1 -1 STATE2 (1,1) -1 STATE0 (0,0) STATE1 (0,1) -1 -1 MOTION COUNT Figure 6. Quadrature output waveform All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 13 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 7. Serial Interface The synchronous serial port is used to set and read parameters in the mouse sensor, and can be used to read out the motion information instead of the quadrature data pins. SCLK: The serial clock line. It is always generated by the host micro-controller. SDIO: The serial data line used for write and read data. PD: A third line is sometimes involved. PD (Power Down pin) is usually used to place the mouse sensor in a low power mode to meet USB suspend specification. PD can also be used to force re-synchronization between the micro-controller and the mouse sensor in case of an error. 7.1 Transmission Protocol The transmission protocol is a two-wire link, half duplex protocol between the micro-controller and mouse sensor. All data changes on SDIO are initiated by the falling edge on SCLK. The host micro-controller always initiates communication; the mouse sensor never initiates data transfers. The transmission protocol consists of the two operation modes: - Write Operation. - Read Operation. Both of the two operation modes consist of two bytes. The first byte contains the address (seven bits) and has a bit7 as its MSB to indicate data direction. The second byte contains the data. SECOND BYTE FIRST BYTE R /W (1 BIT) ADDRESS (7 BIT) DATA (8 BIT) MSB LSB LSB MSB Figure 7. Transmission protocol 7.1.1 Write Operation A write operation, which means that data is going from the micro-controller to the mouse sensor, is always initiated by the micro-controller and consists of two bytes. The first byte contains the address (seven bits) and has a “1” as its MSB to indicate data direction. The second byte contains the data. The transfer is synchronized by SCLK. The micro-controller changes SDIO on falling edges of SCLK. The mouse sensor reads SDIO on rising edges of SCLK. SCLK SDIO DON'T CARE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 DON'T CARE SDIO driven by Micro-controller Figure 8. Write operation All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 14 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 7.1.2 Read Operation A read operation, which means that data is going from the mouse sensor to the mouse controller, is always initiated by the mouse controller and consists of two bytes. The first byte contains the address, is written by the mouse controller, and has a “0” as its MSB to indicate data direction. The second byte contains the data and is driven by the mouse sensor. The transfer is synchronized by SCLK. SDIO is changed on falling edges of SCLK and read on every rising edge of SCLK. The mouse controller must go to a high Z state after the last address data bit. The mouse sensor will go to the high Z state after the last data bit. SCLK 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 D7 D6 D5 D4 D3 D2 D1 D0 8 H i-Z S D IO D O N 'T CARE 0 A6 A5 A4 A3 A2 A1 A0 S D IO d riven b y th e m ou se con troller H i-Z_ R /W b it o f n ex t ad d ress S D IO d riv en b y th e m ou se senso r N o te "A " N o te "B " N o te "A " 1. T he m ou se co ntroller send s add ress to the m o use sen so r. 2. T he m ou se co ntroller releases an d set S D IO to H i-Z after th e last ad dress bit. SCLK 8 7 A1 S D IO 9 H i-Z A0 D7 tH O L D 3u s,m in N o te "B " 1. T he m o use sen so r sen ds data to th e m ou se con tro ller . 2. T he m o use sen so r releases and set S D IO to H i-Z after th e last data bit. SCLK 16 H i-Z S D IO D0 _ 1 R /W b it of n ex t ad dress S D IO driven b y the m ou se co ntroller Figure 9. Read Operation 7.2 Re-Synchronous Serial Interface If the mouse controller and the mouse sensor get out of synchronization, then the data either written or read from the registers will be incorrect. There are two different ways for re-synchronous serial interface. z Re-synchronous serial interface using PD pin (see Section 7.2.1) z Re-synchronous serial interface using watchdog timer timeout (see Section 7.2.2) Note that “watchdog timer timeout” (see Section 7.2.2) function is disabled when the mouse sensor is in the power down mode. If the user uses this function during the power down mode, it will get out of synchronization. The mouse sensor and the mouse controller also might get out of synchronization due to following conditions. z Power On Problem - The problem occurs if the mouse sensor powers up before the mouse controller sets the SCLK and SDIO lines to be output. The mouse sensor and the mouse controller might get out of synchronization due to power on problem. An easy way to solve this is to raise PD pin (see Section 7.2.1) or use watchdog timer timeout (see Section 7.2.2) for re-synchronous serial interface. z ESD Events - The mouse sensor and the mouse controller might get out of synchronization due to ESD events. An easy way to solve this is to raise PD pin (see Section 7.2.1) or use watchdog timer timeout (see Section 7.2.2) for re-synchronous serial interface. z USB suspend - Termination of a transmission by the mouse controller may be required sometimes (for example, due to a USB suspend interrupt during a read operation). An easy way to solve this is to raise PD pin (see Section 7.2.1) or use watchdog timer timeout (see Section 7.2.2) for re-synchronous serial interface. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 15 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 7.2.1 Re-Synchronous Serial Interface Using PD Pin The mouse controller raises PD line to reach re-synchronous serial interface after an incorrect read. The mouse sensor will reset the serial port but will not reset the registers and be prepared for the beginning of a new transmission. Note that using “PD pin” to reach re-synchronous is quicker than using “watchdog timer timeout”. PD 1us,min SCLK 1 Hi-Z SDIO 2 3 4 5 6 7 8 9 1 0 1 1 ADDRESS(R/W) 1 2 1 3 1 4 1 5 1 6 DATA Figure 10. Re-synchronous Serial Interface Using PD Pin 7.2.2 Re-Synchronous Serial Interface Using Watchdog Timer Timeout The mouse controller can toggle the SCLK line from high to low to high and wait at least tSIWTT to reach resynchronous serial interface after an incorrect read. The mouse sensor will reset the serial port but will not reset the registers and be prepared for the beginning of a new transmission. t S IW T T SCLK 1 tR E S Y N C 1 u s , m in S D IO 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 H i-Z A D D R E S S (R /W ) DATA Figure 11. Re-synchronous Serial Interface Using Watchdog Timer Timeout 7.3 Collision Detection on SDIO The only time that the mouse sensor drives the SDIO line is during a READ operation. To avoid data collisions, the micro-controller should release SDIO before the falling edge of SCLK after the last address bit. The mouse sensor begins to drive SDIO after the next falling edge of SCLK. The mouse sensor release SDIO of the rising SCLK edge after the last data bit. The micro-controller can begin driving SDIO any time after that. In order to maintain low power consumption in normal operation or when the PD pin is pulled high, the micro-controller should not leave SDIO floating until the next transmission (although that will not cause any communication difficulties). All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 16 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 7.4 Power Down Mode There are two different ways to entry power down mode, using the PD line or register setting. 7.4.1 PD Line Power Down Mode To place the mouse sensor in a low power mode to meet USB suspend specification, raise the PD line at least 700us. Then PD line can stay high, with the mouse sensor in the shutdown state, or the PD pin can be lowered, returning the mouse sensor to normal operation. PD tPDW 700us,min IDD 500us tPD 500us 90frames tPUPD 14.15ms Figure 12. Power down minimum pulse width PD tPDW 700us,min SCLK 1 Hi-Z SDIO 2 3 4 5 6 7 8 9 1 0 1 1 ADDRESS(R/W) 1 2 1 3 1 4 1 1 5 6 DATA Figure 13. PD line power down mode 7.4.2 Register Power Down Mode The mouse sensor can be placed in a power down mode by setting PD_enh bit in the configuration register via a serial port write operation. After setting the configuration register, wait at least 1frame times. To get the chip out of the power down mode, clear PD_enh bit in the configuration register via a serial port write operation. In the power down mode, the serial interface watchdog timer is not available (see Section 7.2.2). But, the serial interface still can read/write normally. For an accurate report after leave the power down mode, wait about 3ms before the mouse controller is able to issue any write/read operation to the mouse sensor. SCLK 1 2 3 4 5 6 7 8 9 1 0 0 0 0 Address = 0x06 1 0 0 0 0 1 1 1 1 1 2 1 3 1 4 1 5 1 6 1 frame, max Data = 0x08 0 0 1 0 0 0 SDIO IDD tPDR Figure 14. Power-down Configuration Register Writing Operation All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 17 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 7.4.3 Register Power Down Mode The mouse sensor can be placed in a power-down mode by setting bit 3 in the configuration register via a serial port write operation. After setting the configuration register, wait at least 1frame times. To get the chip out of the power-down mode, clear bit 3 in the configuration register via a serial port write operation. In power-down mode, the serial interface watchdog timer is not available. But, The serial interface still can read/write normally. For an accurate report after leave power down mode, wait about 3ms before the micro-controller is able to issue any write/read operation to the mouse sensor. SCLK 1 2 3 4 5 6 7 8 9 1 0 1 0 0 0 Address=0x06 1 0 0 0 0 1 1 1 1 2 1 3 1 4 1 5 1 6 0 0 1 frame, max Data=0x08 0 0 1 0 SDIO IDD tPDR Figure 15. Power-down configuration register writing operation 7.5 Error Detection 1. The micro-controller can verify success of write operations by issuing a read command to the same address and comparing written data to read data. 2. The micro-controller can verify the synchronization of the serial port by periodically reading the product ID register. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 18 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 8. Referencing Application Circuit 8.1 Typical Application using Serial Interface for Full Speed USB Wire Mouse VDD VCC_5V SCANIN1 VCC_3.3V SCANIN2 U1 ELM9833 R25 100R R3 100K LB1 R4 100K RB1 C1 47uF MB1 SCANOUT0 BB1 FB1 DPI-1 W-(<--)1 W+(-->)1 DPI+1 1 SCANOUT2 R5 SCANOUT2 SPWR VD1 4 R8 100R 6 7 SCANOUT0 24 SCANIN1 21 Z1 3 Z2 NCS SCANIN0 5 SCANIN2 VDDA SCANOUT1 VDD SCANIN2 VPP SCANOUT0 VD2 SCANIN1 D+ Z1 D- 20 10pF X1 48MHz C10 10pF C11 1nF L2 0R Q1 SDIO D1 2N3906 SCLK 1N4148 KEY 1 100K VDD NCS 14 17 18 22 C4 0.1uF C3 + 100uF D2 D3 USB_5V D4 1N4148 R9 12R R10 12R 19 VSS OSCI 100R JP1 1 V 1N4148 1N4148 12 13 D5 10 D6 + OSCO VSSA R13 15 23 DIR1 1N4148 2 11 1N4148 1N4148 C5 10uF C7 0.1uF R11 240K C8 15P R12 240K 16 D- 4 G 5 C9 15P D+ 3 Z2 RESET C6 9 NCS VCC_5V 1K 1K R7 SDIO 2 SCANIN0 SCANOUT1 R6 SCLK 8 SDIO ENCODER C2 47uF LED3 1600CPI U2 ENSW1 2 LED2 800CPI SCANOUT2 COM VOUT LED1 400CPI SCANOUT1 SCLK VIN 3 R2 100K 1 GND SCANIN0 VCC_5V S USB L1 BEAD MosArt MA6721 2uF MA6721 DIR SETTING VCC_5V U3 D7 1 LD 2 *C12 OPEN X2 27.000MHz *C13 OPEN 3 4 5 C14 1uF 6 VCC_5V 7 8 9 C15 C16 C17 0.1uF 1uF 10 LD_P PD LD_N SDIO OSCOUT OSCIN VDDD SCLK NC LDTEST VSSD CPI VSSA XB VDD XA VDDA YB LDRES YA R1 PAW3602DH-NF SENSOR DIRECTION 0 DEGREE ON 90 DEGREE 20 19 MA6721 KEY SETTING SDIO 18 SCLK CPI1 OPEN / 0R 17 16 15 14 13 12 11 1 R20 *TP1 TEST POINT *TP2 TEST POINT 1 *TP3 TEST POINT OPEN 5 Key PAW3602 CPI SETTING 1 *TP4 TEST POINT 1 KEY SETTING 3 Key Please placement the C1, C2 near the PIN17(VDD). 0R 1 KEY1 ON MA6721 PCB LAYOUT NOTE CPI2 OPEN CPI1 0R Resolution 800 CPI 0R OPEN 1600 CPI *TP5 TEST POINT + 10uF DIR1 OPEN PAN3602 RESERVED FUNCTION CPI2 0R / OPEN *TP1, *TP2, *TP3, *TP4, *TP5 => Please reserved for PAW3602 eye safety test *C12, *C13 => Please reserved for future use Note:The suggested resistor tolerance is 1% precise resistor for R1 Figure 16. Application Circuit Using Serial Interface with MosArt MA6721 (Full Speed USB) All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 19 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 8.2 Typical Application using Serial Interface for Low Speed USB Wire Mouse VCC_5V U2 SDIO PD 3 4 BM 5 BR 6 BL 7 Z2 8 Z1 9 P1.2/VREG P1.4 VCC P1.5 P1.1/D- P1.6 P1.0/D+ P1.7 VSS P0.7 P0.1 P0.6 P0.1 P0.5 P0.2 P0.4 P0.3 VCC_5V 18 VCC_3.3V CON1 17 D- D- 16 C2 + D+ 15 C3 D+ 22uF GND 0.1uF U3 1 2 3 4 2 C10 HEADER 4 14 VIN VOUT 3 GND SCLK 2 P1.3 + C11 22uF + 22uF 1 1 13 ELM9833 12 11 10 CY7C63813-PXC VCC_5V U1 *C1 OPEN D1 1 LD 2 3 X1 4 27.000MHz *C4 OPEN C5 5 + 6 1uF 7 VCC_5V 8 9 C6 10uF + 10 C7 0.1uF C8 PD LD_P LD_N SDIO OSCOUT SCLK NC OSCIN VDDD LDTEST VSSD CPI VSSA XB VDD XA VDDA YB LDRES YA 20 PD CPI1 19 SDIO OPEN / 0R 18 SCLK 17 16 15 14 13 12 11 BR SW1 R BM SW2 M SW3 L BL 1 *TP1 TEST POINT 1 *TP2 TEST POINT 1 *TP3 TEST POINT CPI2 1 *TP4 TEST POINT 0R / OPEN R8 0R ENSW1 Z2 Z1 1 2 Z2 COM 3 Z1 ENCODER 1 *TP5 TEST POINT + R1 1uF Note:The suggested resistor tolerance is 1% precise resistor for R1 PAW3602DH-NF PAW3602 RESERVED FUNCTION *TP1, *TP2, *TP3, *TP4, *TP5 => Please reserved for PAW3602 eye safety test PAW3602 CPI SETTING *C1, *C4 CPI2 CPI1 OPEN 0R 800 0R OPEN 1600 CPI => Please reserved for future use Resolution CPI Figure 17. Application circuit using serial interface with Cypress CY7C63813 (Low Speed USB) All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 20 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 8.3 Typical Application for Wireless Laser Mouse, Power Source from Pin 5 & 9 #1. Battery Power Circuit BAT_PWR L1 ENSW1 VCC_3.3V 330uH D1 VCC_3.3V 1N5819 COM Z2 Z2 Z1 Z1 C1 C2 GND SW 47uF U1 ENCODER VOUT R_KEY 100uF SW1 M_KEY ELM9333 SW2 L_KEY SW3 #2.MCU Circuit VCC_3.3V U2 ID_SY NC 1 RFU 2 3 4 5 Z1 6 Z2 7 R_KEY 8 M_KEY 9 R15 30K C5 0.1uF C3 P51 P50 OSCI OSCO VDD P67 P66 P65 P64 P52 P53 TCC RESET VSS P60/INT P61 P62 P63 RF_EN RF_DATA 18 17 16 15 14 13 12 11 10 X1 6MHz 15pF VCC_3.3V R2 C4 15pF VCC_3.3V SCLK SDIO PD L_KEY 20K ID_SYNC C6 0.1uF S1 8bits MCU VCC_3.3V R3 #3.RF TX Circuit RF_EN C10 27K Q2 RF_DATA R8 10K 3904 C7 C8 C9 1uF 0.1uF 1uF C11 R4 0.1uF 10ohm X2 13.5225MHz R7 C15 10pF 100K R5 0.1uF 36K Q1 C14 56K C16 100pF C17 R9 33pF 2K C13 100pF 100pF 3904 27pF C12 R6 Q3 3904 #4.Sensor Circuit U3 D2 1 LD 2 *C18 OPEN *C19 OPEN 3 *X3 27.045MHz 4 5 C14 + 6 1uF 7 VCC_3.3V 8 9 C20 C21 10 + 10uF 0.1uF C23 + R1 LD_P VCC_3.3V PD LD_N SDIO OSCOUT SCLK OSCIN NC VDDD LDTEST VSSD CPI VSSA XB VDD XA VDDA YB LDRES YA PAW3602DH-NF 1uF 20 PD 19 SDIO 18 SCLK PAW3602 CPI SETTING CPI2 CPI1 Resolution OPEN 0R 800CPI 0R OPEN 1600CPI CPI1 OPEN / 0R PAW3602 RESERVED FUNCTION 17 *C18, *C19 16 1 => Please reserved for future use *TP1 TEST POINT *TP1, *TP2, *TP3, *TP4, *TP5 => Please reserved for PAW3602 eye safety test 15 R13 14 13 12 11 0R 1 *TP2 TEST POINT 1 *TP3 TEST POINT The frequency of "*X3" must be the same as RF frequency 1 *TP4 TEST POINT 1 *TP5 TEST POINT Note:The suggested resistor tolerance is 1% precise resistor for R1 CPI2 0R / OPEN Figure 18. RF application circuit using pin 5 & 9 for power supply source All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 21 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 8.4 Typical Application for RF Receiver C2 C4 + 2.2uF 1 2 3 4 5 OSC_IN 6 OSC_OUT 7 8 B3 9 10 VCC_RF C9 + 10uF 20pF C3 68pF C6 U1 10nF C8 C1 0.1uF 10nF 20 19 18 17 16 15 14 13 12 11 ANT_IN1 ANT_IN2 AGND VNEG VPOS MDR VCC LF VDIG AGND XTAL_IN VPOS_LO XTAL_OUT VNEG_LO VNEG_DIG B1 B3 OUT B2 CLK C5 C7 + 2.2uF 2.2uF B1 RF_DATA C11 C10 10nF + 2.2uF TI TRF7903-PW20 C12 + 2.2uF C13 10nF OSC_IN VCC_RF R1 OPEN B1 C14 R2 B3 X1 12MHz 47pF 0R R4 R5 0R OPEN OSC_OUT C15 Q1 2N3906 VCC_RF A0 VCC WP A1 A2 SCL GND SDA VCC_RF 47pF U2 1 2 3 4 VCC_5V 8 7 6 5 R3 10K C16 SCL SDA R6 0.1uF 10K PWR_Ctrl 2402 U3 RF_DATA VCC_RF R8 2 470 D1 S1 1 LED ID_SYNC PWR_Ctrl 3 4 5 P0.0 P0.1 P0.2 P0.3 VREG D-/SDATA D+/SCLK VCC 15 14 JP1 1.3K 1 16 P1.0 VSS P0.5 P0.6 XTALIN R7 VCC_5V C17 C18 + VPP 12 11 XTALOUT 10 0.1uF 10uF 2 3 4 USB 9 23 SCL 22 SDA 13 CYPRESS CY7C63723 Figure 19. Application circuit with Cypress CY7C63813 (Low speed USB) All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 22 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 9. PCB Layout Consideration 1. Caps for pins 5, 8, 9 MUST have trace lengths LESS than 5mm. 2. The trace lengths of OSCOUT, OSCIN must less than 6mm. 10. Z and 2D Assembly +X +Y BASE PLATE -- Top View -LD Unit: mm Lens/Package Alignment Line Lens SURFACE IS 0 REF. PCB SENSOR BASE PLATE ALIGNMENT POST -- Side View -- Figure 20. 2D Assembly All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 23 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 11. Package Information 11.1 Package Outline Drawing 20 11 1 10 Θ 1 10 20 11 Θ Figure 21. Package outline drawing All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 24 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 11.2 Base Plate Modeling Dimension Figure 22. Base plate molding dimension All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 25 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 11.3 Recommended PCB Mechanical Cutouts and Spacing Figure 23. Recommended PCB mechanical cutouts and spacing All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 26 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor 6. Update History Version V1.0 Update Creation, Preliminary 1st version All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] Date 06/28/2007 27 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor Vertical Cavity Surface Emitting Laser (VCSEL) Components Specification Distribution Internal Only □ External All □ External Restricted □ If restricted, specify restricted to whom: Document No.: PNDR-00004 Revision: Rev 2.50 Date: 2007/06/15 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 28 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor Revision History Revision Author Date Description 1.0 M.H.Chien 2006/06/14 Initial version 1.5 Chadwick 2007/01/18 Add VDD=2.7V and delete VDD=5.0V constraint resistor table 2.0 Chadwick Revise resistor table for higher CW radiant power 300uW 2007/05/04 ~550uW on Mouse operation ; Delete P32/ P64/ P68/ P72/ P76/ P80 six Grades 2.5 Chadwick Note PAN/PAW 3601DH-NF for constraint resistor table and 2007/06/15 add new constraint resistor table for PAN/PAW 3602DH-NF All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 29 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor PNDR-00004 850nm Epoxy molded VCSEL for Laser Mouse FEATURES z Epoxy Molded with round emission surface. z Small divergence angle. ELECTRO-OPTICAL CHARACTERISTICS: PARAMETERS SYMBOL MIN TYP MAX UNIT TEST CONDITIONS 0.475 0.7 mW I=IF (1) Output Power Po Wavelength λP 830 850 860 nm IF = 6 mA Forward Voltage VF 1.6 1.75 1.9 V IF = 6 mA Series Resistance RS 40 60 Ω IF = 6 mA Breakdown voltage VBD 14 V Ir = 10uA 8 degree IF = 6 mA Beam Divergence(1/e2) 7 θ Notes :(1) Binning APPIY TO PAN3602DH-NF/ PAW3602DH-NF Optical power at each of following nominal bin operating current and constrained resistor Bin grade LD current (mA) Single Constrain Bin grade LD current (mA) resistor :R(Ω) Single Constrain resistor :R(Ω) P36 3.6 18K P50 5.0 13K P40 4.0 15K P52 5.2 13K P42 4.2 15K P54 5.4 12K P44 4.4 15K P56 5.6 12K P46 4.6 15K P58 5.8 12K P48 4.8 13K P60 6.0 10K Warning! For Single constrain resistor( R ) , please using the recommend value, if resistor value is less than recommend value, there will be eye safety issue. Note: The suggested resistor tolerance is 1% precise resistor for constrained resistor R. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 30 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor ABSOLUTE MAXIMUM RATINGS: PARAMETERS Storage Temperature Operating Temperature Continuous Forward Current Continuous Reverse Voltage Lead Solder Temperature Fig. 1 Typical Optical Characteristics MAX UNIT Condition 85 °C 60 °C 12 mA 7 V 260 10 seconds °C Fig. 2 Typical Electrical Characteristics MIN -30 -10 3.0 5 2.5 Voltage (V) Power (mW) 4 3 2 2.0 1.5 1.0 1 0 0.5 0 2 4 6 8 10 12 14 Current (mA) 0.0 0 2 4 6 8 10 12 14 Current (mA) OUTLINE DIMENSIONS: Note: Unit is millimeters and Tolerance is ± 0.2 mm unless otherwise notes WARNING: The VCSEL is a class IIIa laser in the safety standard ANSI Z136.1 and should be treated as a potential eye hazard. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 31 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor PNLR-00038 Lens Dimensions All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 32 V1.0, Jun. 2007 PixArt Imaging Inc. PAW3602DH-NF CMOS Laser Mouse Sensor Note: The Part No. of the Mouse Product with Prefix "PAN" shall NOT be made, sold, offered to sell, imported or used in or into USA, Canada, Japan and EU. For "PAN", PixArt has only gained territory-limited patent license from Avago. Avago reserve right to take legal action against our customers who fails to comply the above term. PLEASE NOTE THAT PixArt will NOT defend, indemnify, or provide any assistance to our customers who fail to comply the term. IF YOU DO NOT AGREE THE TERM, PIXART WILL NOT DELIVER "PAN" PRODUCTS TO YOU. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 33 V1.0, Jun. 2007