PAN301BSI-208

PAN301BSI-208 PAN301BSI-208 CMOS HIGH PERFORMANCE OPTICAL MOUSE SENSOR General Description The PAN301BSI-208 is a high performance CMOS process optical mouse sensor with DSP integration chip that serves as a non-mechanical motion estimation engine for implementing a computer mouse. Features Single 3.3 volt power supply Precise optical motion estimation technology Complete 2-D motion sensor No mechanical parts Optical Lens 1:1 Accurate motion estimation over a wide range of System Clock 18.432 MHz surfaces High speed motion detection up to 37 inches/sec Speed and acceleration can be up to 20g High resolution up to 800cpi Power down pin and register setting for low power Resolution dissipation. Power saving mode during times of no movement Serial Interface for programming and data transfer I/O pin 5.0 volt tolerance Frame Rate Operating Current Package 37 inches/sec Power Supply Key Specification Wide operating supply range 3.0V~3.6V Acceleration 20g 400/600/800cpi 3000 frames/sec 12mA @Mouse moving (Normal) 5mA @Mouse not moving (sleep1) 60uA @Power down mode Shrunk DIP20 Ordering Information Order number PAN301BSI-208 I/O CMOS output Resolution 800 cpi All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 1 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw V1.1, MAY. 2004 PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 1. Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Name VSS_LED LED OSCOUT OSCIN VDDD VSSD VSSA VDD VDDA VRT YA YB XA XB NC NC NC SCLK SDIO PD Type GND I/O OUT IN PWR GND GND PWR PWR BYPASS OUT OUT OUT OUT IN I/O IN Definition LED ground LED control Resonator output Resonator input Chip digital power, 3.0V Chip digital ground Chip analog ground Chip power, 3.3V power supply Chip analog power, 3.0V Analog voltage reference YA quadrature output YB quadrature output XA quadrature output XB quadrature output No connection No connection No connection Serial interface clock Serial interface bi-direction data Power down pin, active high 1 20 LB RB +Y 1 20 10 11 10 11 +X Figure 1. Top view pinout Figure 2. Top view of mouse All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 2 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 2. Block Diagram and Operation LED VSS_LED LED DRIVE POWER ON RESET VOLTAGE REGULATOR AND POWER CONTROL CMOS IMAGE SENSOR QUADRATURE OUTPUT QUADRATURE OUTPUTS XA XB YA YB VDD VDDD VDDA VSSD VSSA 3.3V POWER PD VRT DIGITAL SIGNAL PROCESSOR SERIAL INTERFACE SCLK SDIO SERIAL INTERFACE CONTROL REGISTER OSCILLATOR OSCIN OSCOUT RESONATOR Figure 3. Block diagram The PAN301BSI-208 is a high performance CMOS-process optical 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 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 in a 20pin 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. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 3 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 3. Registers and Operation The PAN301BSI-208 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 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 Name Product_ID Product_ID Motion_Status Delta_X Delta_Y Operation_Mode Configuration Image_Quality R/W R R R R R R/W R/W R Default 0x30 0x1N 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 future Bit field Eight bits 2’s complement number Eight bits 2’s complement number Bit field Bit field Eight bits unsigned integer 3.2 Register Descriptions 0x00 Bit Field Usage 0x01 Bit Field Usage 7 6 PID[3:0] 5 7 6 5 Product_ID 4 PID[11:4] The value in this register can’t change. It can be used to verify that the serial communications link is OK. Product_ID 4 3 2 1 0 Reserved [3:0] 3 2 1 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 communications. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 4 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 0x02 Bit Field Usage 7 Motion 6 5 Reserved[6:5] Motion_Status 4 DYOVF 3 DXOVF 2 RES[2:1] 1 0 Reserved CMOS Optical Mouse Sensor 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 since last report or PD 0 = No motion (Default) 1 = Motion occurred, data ready for reading in Delta_X and Delta_Y registers Motion Reserved[6:5] DYOVF Reserved for future Motion Delta Y overflow, ∆Y buffer has overflowed since last report 0 = No overflow (Default) 1 = Overflow has occurred Motion Delta X overflow, ∆X buffer has overflowed since last report DXOVF 0 = No overflow (Default) 1 = Overflow has occurred Resolution in counts per inch 0 = 800 (Default) 1 = 400 2 = 600 RES[2:1] Reserved Reserved for future All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 5 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 0x03 Bit Field Usage 0x04 Bit Field Usage 7 Y7 6 Y6 5 Y5 4 Y4 7 X7 6 X6 5 X5 4 X4 Delta_X 3 X3 2 X2 1 X1 0 X0 CMOS Optical Mouse Sensor X movement is counts since last report. Absolute value is determined by resolution. Reading clears the register. Report range –128~+127. Delta_Y 3 Y3 2 Y2 1 Y1 0 Y0 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. 6 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 0x05 Bit Field Usage 7 6 5 Operation_Mode 4 3 2 1 0 LEDsht_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 1 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 1 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 60 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. Mode Sampling rate @3000frame/sec Active duty cycle @3000frame/sec Sleep1 94/sec 22% Sleep2 3/sec 2.24% 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 LEDsht_enh XY_enh Reserved Slp_enh Slp2au Slp2mu Slp1mu Wakeup Description LED shutter enable / disable 0 = Disable 1 = Enable (Default) XY quadrature output enable/disable 0 = Disable 1 = Enable (Default) Reserved for future Sleep mode enable/disable 0 = Disable 1 = Enable (Default) Automatic enter sleep2 mode enable/disable 0 = Disable (Default) 1 = Enable Manual enter sleep2 mode, set “1” will enter sleep2 and this bit will be reset to “0” Manual enter sleep1 mode, set “1” will enter sleep2 and this bit will be reset to “0” Manual wake up from sleep mode, set “1” will enter wakeup and this bit will be reset to “0” 7 V1.1, MAY. 2004 CMOS Optical Mouse Sensor 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: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 0x06 Bit Field Usage Notes 7 6 5 Reserved[7:4] Configuration 4 3 PD 2 RES[2:1] 1 0 Reserved CMOS Optical Mouse Sensor The Configuration register allows the user to change the configuration of the sensor. Shown below are the bits, their default values, and optional values. Field Name Reserved[7:4] Description Reserved for future Power down mode PD 0 = Normal operation (Default) 1 = Power down mode Output resolution setting RES[2:1] 0 = 800 (Default) 1 = 400 2 = 600 Reserved Reserved for future Image_Quality 7 6 5 4 Imgqa[7:0] 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. Field Name Imgqa[4:0] Description Image quality report range: 0(worst) ~ 255(best). 3 2 1 0 0x07 Bit Field Usage Notes All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 8 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 4. Specifications Absolute Maximum Ratings Symbol TSTG TA Parameter Storage temperature Operating Temperature Lead Solder Temp VDD ESD VIN DC input voltage -0.5 DC supply voltage -0.5 Min -40 -15 Max 85 55 260 4.0 2 5.5 Unit ℃ °C °C V kV V All pins, human body model MIL 883 Method 3015 PD, SDIO, SCLK, XA, XB, YA, YB,VDD For 10 seconds, 1.6mm below seating plane. Notes Recommend Operating Condition Symbol TA VDD VN FCLK FR SCLK Z S A R Parameter Operating Temperature Power supply voltage Supply noise Clock Frequency Frame Rate Serial Port Clock Frequency Distance from lens reference plane to surface Speed Acceleration Resolution 400 2.3 0 2.4 18 12.000 1953 18.432 3000 Min. 0 3.3 3.0 Typ. Max. 40 3.6 3.6 100 24.576 4000 10 2.5 37 20 800 Unit °C V V mV MHz Frames/s MHz mm Inches/sec g cpi Refer to Figure 4. Peak to peak within 0-100 MHz Set by crystal or ceramic resonator. 1953 frames/s @ FCLK=12.000MHz 4000 frames/s @ FCLK=24.567MHz Notes VDDD, VDDA Power supply voltage All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 9 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor Package Lid Lens Z OBJECT SURFACE Figure 4. Distance from Lens Reference Plane to Surface +X +Y ESD LENS RING BASE PLATE PLASTIC SPRING CLIP LED SURFACE IS 0 REF. PCB SENSOR BASE PLATE ALIGNMENT POST Unit: mm Figure 5. 2D assembly All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 10 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 AC Operating Condition Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, VDD =3.3 V, FCLK=18.432MHz Symbol tPD tPDW tPDR Parameter Power Down PD Pulse Width PD Pulse Register 700 333 Min. Typ. Max. Unit 500 us us us Notes From PD↑. (Refer to Figure 15) Pulse width to reset the serial interface. (Refer to Figure 15) One frame time maximum after setting bit 2 in the Configuration register @3000frame/sec. (Refer to Figure 17) CMOS Optical Mouse Sensor tPUPD Power Up from PD↓ 9 30.5 From PD↓ to valid quad signals. After tPUPD, all registers contain valid data from first image after PD↓. Note that an additional 90 ms frames for Auto-Exposure (AE) stabilization may be required if mouse movement occurred while PD was high. (Refer to Figure 15) ms us us From VDD↑ to valid quad signals. 500usec + 90frames. Minimum hold time for valid data. (Refer to Figure 11) @3000frame/sec (Refer to Figure 14) tPU tHOLD tRESYNC tSIWTT tr,tf tr,tf tr,tf Power Up from VDD↑ SDIO read hold time Serial Interface RESYNC. Serial Interface Watchdog Timer Timeout Rise and Fall Times: SDIO Rise and Fall Times: XA, XB, YA, YB Rise and Fall Times: ILED 15 3 1 1.7 25, 20 25, 20 10, 10 30.5 ms @3000frame/sec (Refer to Figure 14) ns ns ns CL = 30pf CL = 30pf LED bin grade: R; R1=100ohm All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 11 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor DC Electrical Characteristics Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, VDD =3.3V Symbol Type: PWR IDD IDD IDDPD Supply Current Mouse moving (Normal) Supply Current Mouse not moving (sleep1) Supply Current (Power Down) Input voltage HIGH Input voltage LOW Output voltage HIGH Output voltage LOW Input voltage HIGH Input voltage LOW Output voltage LOW Output voltage HIGH Output voltage LOW 2.4 0.6 2.0 0.7 150 2.4 0.6 2.0 0.7 V V V V V @I OH = 2mA (SDIO only) @I OL = 2mA (SDIO only) When driving from an external source When driving from an external source 12 5 60 mA XA, XB, YA, YB, SCLK, SDIO = no load mA uA PD, SCLK, SDIO = high Parameter Min. Typ. Max. Unit Type: SCLK, SDIO, PD VIH VIL VOH VOL VIH VIL VOL VOH VOL Type: OSCIN Type: LED mV @I OL = 25mA V V @I OH = 2mA @I OL = 2mA Type: XA, XB, YA, YB All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 12 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 5. Quadrature Mode The quadrature state of the PAN301BSI-208 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. 5.1 Quadrature Output Timing X motion to the right Y motion up XA/YA FOUR XB/YB 83.3us 83.3us 83.3us 83.3us XA/YA THREE XB/YB 83.3us 83.3us 166.7us XA/YA TWO XB/YB 83.3us 250us XA/YA ONE XB/YB 333.3us 333.3us @ 3000frames/second Figure 6. 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. 13 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 5.2 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 de-asserted, 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 STATE 0 (0,0) CT IO N + T EC IR D IR E D IO N T EC IR -D N IO -D IR EC T + X/Y output STATE XA/YA XB/YB 0 PD 1 2 3 0 1 1 1 1 0 0 0 N IO PD STATE 1 (0,1) TI O N STATE 3 (1,0) -D IR EC -D E IR STATE 2 (1,1) PD Figure 7. State machine 5.3 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. XA/YA X MOTION TO THE RIGHT Y MOTION UP ( + DIRECTION ) XB/YB STATE3 (1,0) STATE0 (0,0) STATE1 (0,1) STATE2 (1,1) STATE3 (1,0) STATE0 (0,0) +1 +1 + +1 D IR E CT IO N + EC IR D IO CT N N O TI +1 +1 MOTION COUNT XA/YA X MOTION TO THE LEFT Y MOTION DOWN ( - DIRECTION ) XB/YB STATE1 (0,1) STATE0 (0,0) STATE3 (1,0) STATE2 (1,1) STATE1 (0,1) STATE0 (0,0) -1 -1 -1 -1 -1 MOTION COUNT Figure 8. 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. 14 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 6. Serial Interface The synchronous serial port is used to set and read parameters in the PAN301BSI-208, 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 PAN301BSI-208 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 PAN301BSI-208 in case of an error. 6.1 Transmission Protocol The transmission protocol is a two-wire link, half duplex protocol between the micro-controller and PAN301BSI-208. All data changes on SDIO are initiated by the falling edge on SCLK. The host microcontroller always initiates communication; the PAN301BSI-208 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. FIRST BYTE R /W (1 BIT) ADDRESS (7 BIT) SECOND BYTE DATA (8 BIT) MSB LSB MSB LSB Figure 9. Transmission protocol 6.1.1 Write Operation A write operation, which means that data is going from the micro-controller to the PAN301BSI-208, 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 PAN301BSI-208 reads SDIO on rising edges of SCLK. SCLK SDIO DON'T CARE 1 1 2 A6 3 A5 4 A4 5 A3 6 A2 7 A1 8 A0 9 D7 10 D6 11 D5 12 D4 13 D3 14 D2 15 D1 16 D0 DON'T CARE SDIO driven by Micro-controller Figure 10. Write operation 6.1.2 Read Operation A read operation, which means that data is going from the PAN301BSI-208 to the micro-controller, is always initiated by the micro-controller and consists of two bytes. The first byte contains the address, is written by the micro-controller, and has a “0” as its MSB to indicate data direction. The second byte contains the data and is driven by the PAN301BSI-208. The transfer is synchronized by SCLK. SDIO is All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 15 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor changed on falling edges of SCLK and read on every rising edge of SCLK. The micro-controller must go to a high Z state after the last address data bit. The PAN301BSI-208 will go to the high Z state after the last data bit. SCLK SDIO DON'T CARE 1 0 2 A6 3 A5 4 A4 5 A3 6 A2 7 8 Hi-z 9 D7 10 D6 11 D5 12 D4 13 D3 14 D2 15 D1 16 D0 Hi-z R/W bit of next address A1 A0 SDIO driven by Micro-controller Note "A" SDIO driven by PAN301BSI-208 Note "B" Note "A" SCLK SDIO 1. Micro-controller send address to PAN301BSI-208. 2. Micro-controller release and set SDIO to Hi-Z after the last address bit. 7 A1 A0 tHOLD 3us,min 8 Hi-Z 9 D7 Note "B" 1. PAN301BSI-208 send data to Micro-controller . 2. PAN301BSI-208 release and set SDIO to Hi-Z after the last data bit. 16 Hi-Z D0 SCLK SDIO 1 R/W bit of next address SDIO driven by micro-controller Figure 11. Read operation 6.2 Re-Synchronous Serial Interface There are times when the SDIO line from the PAN301BSI-208 should be in the Hi-Z state. If the microprocessor has completed a write to the PAN301BSI-208, the SDIO line is Hi-Z, since the SDIO pin is still configured as an input. However, if the last operation from the microprocessor was a read, the PAN301BSI-208 will hold the D0 state on SDIO until a rising edge of SCLK. To place the SDIO pin into the Hi-Z state, first raise the PD line, and then toggle the SCLK line from high to low to high. The SDIO line will now be in the Hi-Z state. The PAN301BSI-208 and the micro-controller might get out of synchronization due to following condition. PD SCLK SDIO Hi-Z 1us,min 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 ADDRESS(R/W) DATA Figure 12. Forcing PAN301BSI-208 SDIO line to the Hi-Z state All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 16 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 6.2.1 USB Suspend Termination of a transmission by the micro-controller may sometimes be required (for example, due to a USB suspend interrupt during a read operation). To accomplish this the micro-controller should raise PD. The PAN301BSI-208 will not write to any register and will reset the serial port (but nothing else) and be prepared for the beginning of future transmissions after PD goes low. 6.2.2 Firmware Flaws Error, or Others Error The PAN301BSI-208 and the micro-controller might get out of synchronization due to micro-controller firmware flaws. The PD pin can stay high, with the PAN301BSI-208 in the shutdown state, or the PD pin can be lowered, returning the PAN301BSI-208 to normal operation. If the microprocessor and the PAN301BSI-208 get out of sync, then the data either written or read from the registers will be incorrect. In such a case, an easy way to solve this is to raise PD to re-sync the parts after an incorrect read. The PAN301BSI-208 will reset the serial port but will not reset the registers and be prepared for the beginning of a new transmission. 6.2.3 Power On Problem The problem occurs if the PAN301BSI-208 powers up before the microprocessor sets the SCLK and SDIO lines to be output. 6.2.4 ESD Events The PAN301BSI-208 and the micro-controller might get out of synchronization due to ESD events. If the PAN301BSI-208 and the micro-controller might get out of synchronization due to power on problem or ESD events. An easy way to solve this is to soft reset the PAN301BSI-208. VDD PD SCLK SDIO Hi-Z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1us,min ADDRESS(R/W) DATA Figure 13. Soft reset the PAN301BSI-208 (Reset full chip and SDIO line set to Hi-Z state) 6.3 Collision Detection on SDIO The only time that the PAN301BSI-208 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 PAN301BSI-208 begins to drive SDIO after the next falling edge of SCLK. The PAN301BSI208 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). 6.4 Serial Interface Watchdog Timer Timeout When there are only two pins to read register from PAN301BSI-208, and PD pin can’t be used to resynchronous function. If the microprocessor and the PAN301BSI-208 get out of sync, then the data either written or read from the registers will be incorrect. In such a case, an easy way to solve this condition is to toggle the SCLK line from high to low to high and wait at least tSIWTT to re-sync the parts after an incorrect read. The PAN301BSI-208 will reset the serial port but will not reset the registers and be prepared for the beginning of a new transmission. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 17 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 tSIWTT SCLK tRESYNC 1us, min SDIO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CMOS Optical Mouse Sensor Hi-Z ADDRESS(R/W) DATA Figure 14. Re-synchronous serial interface using watchdog timer timeout 6.5 Power Down Mode There are two different ways to entry power down mode, using the PD line or register setting. 6.5.1 PD Line Power Down Mode To place the PAN301BSI-208 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 PAN301BSI-208 in the shutdown state, or the PD pin can be lowered, returning the PAN301BSI-208 to normal operation. PD IDD tPD 500us tPDW 700us,min 500us 90frames tPUPD 30.5ms Figure 15. Power down minimum pulse width PD SCLK SDIO tPDW 700us,min 1 2 3 4 5 6 7 89 1 0 1 1 1 2 1 3 1 4 11 56 Hi-Z ADDRESS(R/W) DATA Figure 16. PD line power down mode All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 18 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 6.5.2 Register Power Down Mode PAN301BSI-208 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 PAN301BSI-208. SCLK 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 Address=0x06 1 0 0 0 0 1 1 0 0 0 Data=0x08 0 0 1 0 0 0 1 frame, max SDIO IDD DATA tPDR Figure 17. Power-down configuration register writing operation 6.6 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. 19 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 7. Referencing Application Circuit for Cordless Optical Mouse 7.1 27MHz RF TX Circuit with Internal Regulator PIN8 *Step-up DC/DC converter circuit BATTERY L1 150uH D1 1N5819 POWER_3.3V U1 C1 47uF R15 0 DGND AIC1642-33CX 2 C2 100uF L2 3 1 GND SW VOUT 3.3uH AGND BATTERY *RF Circuit R2 C3 0.1uF 10 C4 0.1UF C5 1UF RF_EN C6 0.1UF R3 27K X1 13.5225MHz R4 36K 2 C10 3 27pF Q3 3904 1 C12 27pF R6 36K C14 33pF R8 2K 1 1 R7 10K 3 C7 0.1UF Q1 3904 C11 100pF 2 3904 R5 56K 3 C8 10pF L3 3.3uH Q2 C9 C13 RF_DATA 2 *MCU POWER_3.3V R9 30K C17 0.1uF ID_SYNC WHEEL_EN RESET Z1 Z2 R_KEY M_KEY 1 2 3 4 5 6 7 8 9 U2 P52 P53 TCC /RESET VSS P60./INT P61 P62 P63 EM78P156 DGND POWER_3.3V R11 20K ID_SYNC DGND S1 1 LB1 1 MB1 1 RB1 1 P51 P50 OSCI OSCO VDD P67 P66 P65 P64 18 17 16 15 14 13 12 11 10 RF_EN RF_DATA OSCI OSCO SCLK SDIO PD L_KEY C18 0.1uF DGND X2 C15 15pF 4MHz C16 15pF DGND POWER_3.3V POWER_3.3V 2 L_KEY R13 Z1 R10 100K R12 100K R14 10K C20 0.1uF DGND Z2 2 M_KEY C19 0.1uF DGND ENSW1 10K 2 R_KEY 2 Z1 WHEEL_EN 3 COM Z2 ENCODER 2 1 DGND *SENSOR U3 1 DGND LED 3 X3 18.432MHz 4 5 C21 6 47uF DGND DGND AGND 8 C22 + 10uF 0.1uF C24 47uF AGND AGND C26 C23 9 10 VDD VDDA VRT XA YB YA 13 12 11 7 VSSD VSSA NC XB 15 14 2 20 19 18 17 16 PD SDIO SCLK POWER_3.3V R1 D2 VSS_LED LED OSCOUT OSCIN VDDD PD SDIO SCLK NC NC 0.1uF PAN301BSI-208 Figure 18. 27MHz RF transceiver circuit with internal regulator All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 20 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 7.2 27MHz RF TX Circuit with Internal Regulator for Low Power Down Current PIN8 *Step-up DC/DC converter circuit BATTERY L1 150uH D1 1N5819 POWER_3.3V U1 C1 47uF R15 0 DGND AIC1642-33CX 2 C2 100uF L2 3 1 GND SW VOUT 3.3uH AGND BATTERY *RF Circuit R2 C3 0.1uF 10 C4 0.1UF C5 1UF RF_EN C6 27K 13.5225MHz 36K 2 C10 3 27pF Q3 3904 1 C12 27pF R6 36K C14 33pF R8 2K 1 1 R7 10K 3 0.1UF R3 X1 R4 C7 0.1UF R5 Q1 3904 C11 100pF 2 3904 56K 3 C8 10pF L3 3.3uH Q2 C9 C13 RF_DATA 2 *MCU POWER_3.3V R9 30K C17 0.1uF ID_SYNC PWR_EN RESET Z1 Z2 R_KEY M_KEY 1 2 3 4 5 6 7 8 9 U2 P52 P53 TCC /RESET VSS P60./INT P61 P62 P63 EM78P156 DGND POWER_3V R11 20K ID_SYNC RB1 1 2 DGND S1 1 DGND ENSW1 Z1 3 DGND DGND COM Z2 ENCODER 2 1 2 R_KEY MB1 1 2 M_KEY Z1 C19 0.1uF 10K LB1 1 P51 P50 OSCI OSCO VDD P67 P66 P65 P64 18 17 16 15 14 13 12 11 10 RF_EN RF_DATA OSCI OSCO SCLK SDIO PD L_KEY C18 0.1uF DGND X2 C15 15pF 4MHz C16 15pF POWER_3.3V DGND POWER_3V 2 L_KEY R13 R10 100K R12 100K R14 Z2 10K C20 0.1uF DGND *SENSOR POWER_3V 3 Q4 P MOS R1 2 LED 3 X3 18.432MHz 4 5 C21 6 47uF DGND AGND C22 + 10uF 0.1uF C24 C26 47uF AGND AGND 0.1uF PAN301BSI-204 C23 9 10 VDDA VRT YB YA 12 11 DGND 7 8 VSSA VDD XB XA 14 13 VSSD NC 15 D2 DGND 1 2 VSS_LED LED OSCOUT OSCIN VDDD PD SDIO SCLK NC NC 20 19 18 17 16 U3 PD SDIO SCLK PWR_EN 1 Figure 19. 27MHz RF TX circuit with internal regulator for low power down current All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 21 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 7.3 27MHz RF TX Circuit Bypass Internal Regulator *Step-up DC/DC converter circuit BATTERY L1 150uH D1 1N5819 POWER_3V U1 C1 3 47uF R15 0 DGND AIC1642-33CX C2 GND 2 100uF L2 SW VOUT 1 3.3uH AGND BATTERY R2 C3 0.1uF 10 C4 0.1UF C5 1UF *RF Circuit RF_EN C6 27K 13.5225MHz 36K 2 C10 3 1 27pF Q3 3904 1 C12 27pF R6 36K C14 33pF R8 2K 1 C11 100pF 2 3904 R7 10K 3 0.1UF R3 X1 R4 C7 0.1UF R5 Q1 3904 56K C8 10pF 3 L3 3.3uH Q2 C9 C13 RF_DATA 2 *MCU POWER_3V R9 30K C17 0.1uF Z1 Z2 R_KEY M_KEY ID_SYNC WHEEL_EN 1 2 3 4 5 6 7 8 9 U2 P52 P53 TCC /RESET VSS P60./INT P61 P62 P63 EM78P156 DGND DGND P51 P50 OSCI OSCO VDD P67 P66 P65 P64 18 17 16 15 14 13 12 11 10 RF_EN RF_DATA OSCI OSCO SCLK SDIO PD L_KEY C18 0.1uF X2 C15 15pF 4MHz C16 15pF POWER_3V DGND POWER_3V POWER_3V R11 20K ID_SYNC DGND S1 1 LB1 1 MB1 1 RB1 1 2 L_KEY R13 Z1 R10 100K R12 100K R14 Z2 10K C20 0.1uF DGND 2 M_KEY C19 0.1uF DGND ENSW1 10K 2 R_KEY 2 Z1 WHEEL_EN 3 COM Z2 2 1 DGND ENCODER *SENSOR U3 POWER_3V R1 D2 LED 3 X3 18.432MHz 4 5 C21 + 10uF 0.1uF DGND AGND 8 AGND 9 10 C24 0.1uF AGND PAN301BSI-208 VDD VDDA VRT XA YB YA 13 12 11 C22 6 7 VSSD VSSA NC XB 15 14 DGND 2 LED OSCOUT OSCIN VDDD SDIO SCLK NC NC 19 18 17 16 1 20 PD SDIO SCLK VSS_LED PD Figure 20. 27MHz RF transceiver circuit bypass internal regulator All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 22 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 7.4 27MHz RF TX Circuit Bypass Internal Regulator for Low Power Down Current *Step-up DC/DC converter circuit BATTERY L1 150uH D1 1N5819 POWER_3V U1 C1 3 47uF R15 0 DGND AIC1642-33CX C2 GND 2 100uF L2 SW VOUT 1 3.3uH AGND BATTERY R2 C3 0.1uF 10 C4 0.1UF C5 1UF *RF Circuit RF_EN C6 27K 13.5225MHz 36K 2 C10 3 1 27pF Q3 3904 1 C12 27pF R6 36K C14 33pF R8 2K 1 C11 100pF 2 3904 R7 10K 3 0.1UF R3 X1 R4 C7 0.1UF R5 Q1 3904 56K C8 10pF 3 L3 3.3uH Q2 C9 C13 RF_DATA 2 *MCU POWER_3V R9 30K C17 0.1uF Z1 Z2 R_KEY M_KEY ID_SYNC PWR_EN 1 2 3 4 5 6 7 8 9 U2 P52 P53 TCC /RESET VSS P60./INT P61 P62 P63 EM78P156 DGND DGND P51 P50 OSCI OSCO VDD P67 P66 P65 P64 18 17 16 15 14 13 12 11 10 RF_EN RF_DATA OSCI OSCO SCLK SDIO PD L_KEY C18 0.1uF X2 C15 15pF 4MHz C16 15pF POWER_3V DGND POWER_3V POWER_3V R11 20K ID_SYNC DGND S1 1 LB1 1 MB1 1 RB1 1 2 L_KEY R13 Z1 R10 100K R12 100K R14 Z2 10K C20 0.1uF DGND 2 M_KEY C19 0.1uF DGND ENSW1 10K 2 R_KEY 2 Z1 3 COM Z2 2 1 DGND DGND ENCODER *SENSOR POWER_3V 3 Q4 P MOS 2 R1 D2 LED 3 X3 18.432MHz 4 5 C21 + 10uF 0.1uF DGND AGND 8 AGND 9 10 C24 0.1uF AGND PAN301BSI-208 VDD VDDA VRT XA YB YA 13 12 11 C22 6 7 VSSD VSSA NC XB 15 14 DGND 2 LED OSCOUT OSCIN VDDD SDIO SCLK NC NC 19 18 17 16 U3 1 20 PD SDIO SCLK PWR_EN 1 VSS_LED PD Figure 21. 27MHz RF TX circuit bypass internal regulator for low power down current All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 23 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 7.5 Typical Application for RF Receiver Circuit VCC_5V Q1 PNP_2N3906 1 3 VCCD R2A1 VCCA 100 + C1 2 R1 4.7K SUSPEND DGND VCC_5V R2 470 RF_DATA D1 1 1 S1 DGND LED-DIP 2 2 LED1 ID_SYNC SUSPEND 1 2 3 4 5 14 1uF R2B1 0 C3 0.1uF + C2 10uF AGND C4 0.1uF U1 11 13 12 8 7 6 18 17 16 15 10 SCL SDA DGND 1 2 3 R3 1.3K DGND + 10uF DGND VCC_5V VCC_5V D+/SCLK D-/SDATA GND C5 JP1 1 2 3 4 HEADER 4 P0.0 P0.1 P0.2 P0.3 P1.0 P1.1 VCC D+/SCLK D-/SDATA VREG VPP VSS P0.4 P0.5 P0.6 P0.7 DGND U2 SCL GND SDA 24LC00 NC 4 VCC 5 VCCD C6 0.1uF 9 XTALIN CY7C63723-PC XTALOUT DGND LOOP ANTENNA C7 Y1 26.590MHz C11 AGND U3 1 C12 0.1uF VCCA AGND IN G G G 2 3 4 C13 AGND VCCA C17 0.1uF C14 R7 C18 47pF 0.1uF 0.1uF 36K MC3361-SMD OSC_B OSC_E MIX_OUT LIM_IN DEC_1 DEC_2 QUAD 1 2 3 4 5 6 7 8 OSC_B MIX_IN OSC_E GND MIX_OUT MUTE SCAN_CTL VCC LIM_IN SQUELCH_IN FILTER_OUT DEC_1 FILTER_IN DEC_2 QUAD DEMO_OUT 16 15 14 13 12 11 10 9 AGND AGND WL_DATA SQUELCH R4 R7A1 R5 R6 2K C16 222 Y2 455C28 C19 103 AGND AGND 20pF C10 20pF 0.01UF C8 5pF C9 33pF 10K VCCA OUT 1M? 420K FL1 CFWM455F 5 C15 0.1uF AGND Figure 22. Application circuit for RF receiver circuit All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 24 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 7.6 PCB Layout Consideration 1. Caps for pins 8, 9, 10 MUST have trace lengths LESS than 5mm. 2. The trace lengths of OSCOUT, OSCIN must less than 6mm. 7.7 Recommended Value for R1 Radiometric intensity of LED Bin limits (mW/Sr at 20mA) LED Bin grade Min. N P Q 14.7 17.7 21.2 Typ. Max. 17.7 21.2 25.4 Note: Tolerance for each bin will be ± 15% R1 value (ohm), VDD=3.3V LED bin grade Min. N P Q 12 12 12 Typ. 22 22 22 Max. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 25 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 8. Package Information 8.1 Package Outline Drawing 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 19.30 0.760 3.20 0.126 9.98 0.393 1.02 0.040 5.08 0.200 1.46 0.0575 0.254 0.010 0.457 0.018 1.778 0.070 5 - 12 14.22 0.560 13.589 0.535 11.938 0.470 1 2 3 4 5 6 7 8 5.715 0.225 4.064 0.160 9 10 5.080 0.200 4.55 0.179 20 19 18 17 16 15 14 13 12 11 0.800 0.031 NOTES: 1. All dimensions in MM/INCH. 2. All dimensions tolerance: +/- 0.10mm 3. Maxmumflash: +0.2mm 5.56 0.2189 Figure 23. 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. 26 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN301BSI-208 CMOS Optical Mouse Sensor 8.2 Recommended PCB Mechanical Cutouts and Spacing 4.064 0.160 2.286 0.090 6.985 0.275 4.445 0.175 1.194 0.047 10.998 0.433 0 ref. 27.153 1.069 16.942 0.667 26.010 1.024 7.544 0.297 0.711 0.028 Optical Center 0 ref. 1.194 0.047 4.445 0.175 6.985 0.275 0.711 0.028 3.251 0.128 7.544 0.297 All Dimensions : mm / inch Figure 24. Recommended PCB mechanical cutouts and spacing 9. Update History Version V1.0 Update Creation, Preliminary 1st version 7.1 27MHz RF TX Circuit with Internal Regulator 7.2 27MHz RF TX Circuit with Internal Regulator for Low Power Down Current Date 05/10/2004 V1.1 05/26/2004 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 27 V1.1, MAY. 2004 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw