无线鼠标电路图

ATA1168 RF Optical Mouse SOC (27Mhz) MosArt SEMICONDUTOR CORP. 2008 All rights reserved Specification 2.0 ATA1168 RF Optical Mouse SOC MOSART SEMICONDUCTOR CORP. Content 1. General Description ....................................................... 1 2. Features.......................................................................... 2 3. Block Diagram ............................................................... 3 4. Package type and pin description .................................. 4 5. Assembly and Outline drawing ...................................... 6 6. Function Description ..................................................... 8 7. Electrical Characteristics............................................. 10 8. Reference Application circuit....................................... 11 ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 1 1. General Description ATA1168 is a wireless optical mouse sensor that supports all functions required in a wireless optical mouse system. The chip includes an optical sensor, a 27MHz transmitter, a controller, and other components in one complete package. ATA1168 also contains a DC-to-DC converter to boost up the battery supply voltage so that the whole system can operate adequately and safely. The key differences in ATA1168 from other optical sensors may be highlighted in that it is designed based on a system-level architecture in order to reduce manufacturing costs by eliminating side parts. ATA1168 contains MosArt’s MCU within one package so that no additional MCU and transmitting (TX) device are needed. MosArt’s MCU encodes data from the optical sensor and sends the encoded data via RF at 27MHz. MosArt’s MCU also equipped with a complete set of FSK modulator that also provides a dual-channels RF solution, and hence reducing further external components for RF interface. MosArt’s MCU could auto detect and R/W the EEPROM to keep mouse ID. Even it without EEPROM, ATA1168 still can keep mouse ID for 10 seconds for exchanging battery. ATA1168 is in a 24-pin optical DIP package with a resolution of 600/1000 counts per inch (cpi) and the rate of motion up to 24.9 inches per second. ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 2 2. Features � One chip has two functions, sensor and mouse TX controller. � Only 27MHz oscillator needed. � ID change solution (256 random IDs) to resist the interference from the same device. � Extreme low current dissipation in sleep mode. � Low operation voltage 2.7v. � 5 Keys supported(R,M,L,F,B). � Title wheel function supported. � “Mechanical” Z wheel encoder supported. � 600,1000 CPI switch supported. � EEPROM control supported. � Carry mode support for traveling. � Support 4 degrees transfer for sensor direction (0, 90, 180, 270 degree). � Adjustable output voltage (a DC/DC converter is included). � ID retention function when battery is removed. � Low battery detection signal (included in the transmitted data). � Build in dual-channel RF oscillator, modulator and power amplifier. � Build in data scrambler and error detection encoder. � 4.8Kbps Baud rate in air. � MA6301 supported. � Optical navigation technology. � Proprietary enhanced navigation accuracy over a wide variety of surfaces. � Power conservation Mode during times of no movement (No-Motion mode). � Low power and eye protection function is included. ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 3 3. Block Diagram ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 4 4. Package type and pin description � Package type:DIP24 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23 #24 VL DCVR VSSORFOUT ORFO TXD LBUT TXCB VDD RBUT XY_LED ORFIN1 MBUT Z2 Z1 MA6301 ORFIN0 FBUT/DIR_0 BBUT/DIR_1 EE_DATA/TURBO_SEL EE_CLK/BAT_LOW/DIR_SCAN EE_CS REG_VTG SVD_IN ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 5 � Pin description Pin Name I/0 Description 1 XY_LED O Sensor LED Drive 2 ORFOUT O Internal Modulated RF Output 3 ORFIN0 I RF Internal Buffer Channel-0 Input (27MHZ Oscillator Input) 4 ORFIN1 I RF Internal Buffer Channel-1 Input (27MHZ Oscillator Input) 5 ORFO O RF Internal Buffer Output (27MHZ Oscillator Output) 6 TXD O Digital Encoded Data 7 TXCB I Connect button 8 RBUT I Right button 9 MA6301 I Enable for MA6301 protocol, active high. 10 Z1 I Z Axis Input_1 (3D) 11 Z2 I Z Axis Input_2 (3D) 12 MBUT I Middle button 13 LBUT I Left button 14 FBUT /DIR_SEL[0] I Forward button / DIR_SEL[0] 15 BBUT /DIR_SEL[1] I Backward button / DIR_SEL[1] 16 EE_DATA/Turbo_SEL I/O Turbo Select / EEPROM data 17 EE_CLK/BAT_LOW /DIR_ SCAN O Battery low indicator / EEPROM clock / Direction scan 18 EE_CS O EEPROM chip select 19 REG_VTG P Regulator output voltage (2.2v) 20 SVD_IN A Supply Voltage Detector Input 21 VL A DC/DC Lx Switch output 22 DCVR A DC/DC Voltage Reference 23 VSS P Ground 24 VDD P Digital & DCDC power ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 6 5. Assembly and Outline drawing � Assembly Recommended PCB Mechanical Drawing (Unit: mm) Assembly Drawing (Unit: mm) B A SE PLA TE PC B B O AR D The maximum performance of the optical mouse set can be achieved by applying the distances shown above. The tolerance of the Lens-to-surface distance is ± 0.2mm. Half type LED clip is optional B A S E P L A T E L E D C L IP 7. 15 m m 7. 15 m m S E N S O R C H IP P C B 2. 1 m m 2. 1 m m L E N S ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 7 � Outline drawing ATA1168 PACKAGE Package Outline Drawing (Unit: mm) 0.945 0.56 1.89 22.40 6.06 5.6 3.0 1.89 22.4 1.2 5.5 11.00 13.56 3 . 2 4 . 6 5 deg, Typ. 12.70 1.0 0.5 0.86 0.5 12.64 4.4 φ1.0 0.32 ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 8 6. Function Description � 4 Angles description about sensor and LED In ATA1168, Sensor direction is decided by forward and backward key. If a forward key has pull-up resistor, DIR_0 will be high; if it has pull-down resistor, the DIR_0 will be low. If a backward key has pull-up resistor, DIR_1 will be high; if it has pull-down resistor, the DIR_1 will be low. 4 angles � Set default Cpi DIR_1 DIR_0 Sensor data transfer 0 0 0 0 1 90 1 0 -90 1 1 180 Sensor LED Angle=+90 Mouse S e n so r L E D A ng le= 0 Senso r A ng le= -90 LED S e n so r LED Angle=180 ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 9 EEPROM read/write circuit. CPI_SEL was decided by EE_DATA_SEL port state. If the pin is pull-up, CPI_SEL goes to “High” level (600cpi). If the pin is pull-down, CPI_SEL has “Low” level(1000cpi) � Set 3+Tilt or 3+FB+BB function Key function was decided by MB key state. � Set Receiver type (Standard or MA6301) Receiver Type was decided by pin 9 ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 10 7. Electrical Characteristics Parameter Symbol Unit Min. Typ. Max. Note Absolute Maximum Ratings Storage Temperature Tstg °C −20 70 Operating Temperature Topr °C 0 50 Supply Voltage Vdd V −0.5 7.0 Input Voltage Vin V Vss−0.3 Vdd+0.3 200 All pins, machine model ESD - V 2000 All pins, human body model Recommended Operating Conditions Operating Temperature Topr °C 0 25 40 Supply Voltage (DC to DC Output voltage) Vdd V - 2.7 - RF Carrier frequency Frf MHz 27.042 Distance from lens reference plane to surface D mm - 2.1 - Maximum Speed S Inch/sec - 24.9 - AC Electrical Specification (Recommended operating conditions: Temp=25°°°°C, DVDD & AVDD=2.7V) Motion Scale Factor counts /sec - 800 - Response Time (Default) Trsp1 msec 8.7 10.9 13.1 Movement to data in no motion mode. Power-On Reset Tres msec 300 426 500 DC Electrical Specification (Recommended operating conditions: Temp=25C and Vdd=2.7V) Supply Current (In Motion) Idd mA - 14 - Not Fixed Supply Current (No Motion1) Idd1 mA - 1.5 - Not Fixed Supply Current (No Motion2) Idd2 uA - 680 - Not Fixed Supply Current (Power Down) Iddpd uA - <30 - Not Fixed Maximum DC/DC converter output voltage Vodc V - - 5 Input Low Voltage VIL V - - 0.8 Input High Voltage VIH V 2.0 - - Output Low Voltage (LED) VOLL V - 0.3 0.5 Maximum LED control Current output IOHLED mA - - - Not Fixed ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 11 8. Reference Application circuit (1CH/2CH) ATA1168 RF Optical Mouse SOC MosArt semiconductor corporation 12