MXC6202XJ

Ultra Low Cost, ±2.0 g Dual Axis Accelerometer With I2C Interface MXC6202xJ/K FEATURES • Small low profile package: o 5.5mm x 5.5mm x 1.4mm • Designed for very low cost applications • RoHS compliant • I2C Slave, FAST (≤400 KHz.) mode • Power up/down function through I2C • On-chip temperature sensor available • Eight customer defined 7-bit addresses • Most reliable industry proven product due to no moving part in sensor structure APPLICATIONS The MXC6202xJ/K is optimized for motion-sensing and tilt-sensing applications such as gesture recognition, menu and screen navigation and HDD protection for consumer devices including: Information Appliances: – Cell Phones, PDA’s, MP3’s Consumer Products: –Pedometers, Blood Pressure Monitor, Digital Cameras Gaming Products:– Joysticks, RF Interfaces, Handheld games, Menu Selection, Tilt Sensing GPS: – Electronic Compass Tilt Correction TEMP TP Internal Oscillator VREF Temperature Sensor TEMP Coarse Gain Adj. Fine Gain Adj. No Connect A/D No Connect VDD CLK PD CLK Heater Control X aixs CLK Coarse Gain Adj. Y aixs Acceleration Sensor CLK Temp Comp. CLK TEMP CLK Fine Gain Adj. Temp Comp. CLKTEMP GND IIC Convertor SCL SDA A/D CLK CLK MXC6202xJ/K FUNCTIONAL BLOCK DIAGRAM and static acceleration (e.g. gravity). Its design is based on heat convection and requires no solid proof mass. This design eliminates the stiction problems associated with legacy technologies. MEMSIC’s solid state design leads to significantly lower failure rates in customer applications as well as lower loss due to handling during manufacturing and assembly processes. It is packaged in a small low profile LCC surface mount package (5.5 mm x 5.5 mm x 1.40 mm with a maximum height of 1.50 mm) and is available for operating temperature ranges of -10°C to +70°C (J) and -40°C to +85°C (K). The maximum noise floor is 2.0 mg/ Hz allowing signals below 2milli-g to be resolved at 1 Hz bandwidth. GENERAL DESCRIPTION The MXC6202xJ/K is an ultra low cost; dual axis accelerometer fabricated on a standard, submicron CMOS process. It is a complete sensing system with on-chip mixed signal processing and integrated I2C (Inter IC) bus, allowing the device to be connected directly to a microprocessor eliminating the need for A/D converters or timing resources. It measures acceleration with a full-scale range of ±2 g and a sensitivity of 400counts/g @3.0 V at 25°C. It can measure both dynamic acceleration (e.g. vibration) Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC for its use, or for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of MEMSIC. MEMSIC, Inc. 800 Turnpike St., Suite 202, North Andover, MA 01845 Tel: 978.738.0900 Fax: 978.738.0196 www.memsic.com MEMSIC MXC6202xJ/K Rev.A Page 1 of 11 3/20/2006 ELECTRICAL CHARACTERISTICS (Measurements @ 25°C, Acceleration = 0 g unless otherwise noted; VDD = 3.0V unless otherwise specified) Parameter Measurement Range (Each Axis) Nonlinearity Alignment Error2 Transverse Sensitivity3 Sensitivity Sensitivity Change Over Temperature (∆ from 25°C) Zero g Offset Bias Level Zero g Offset TC Temperature Output Temperature Output Sensitivity Noise Density, RMS Resolution Frequency Response Output Drive Capability Output Headroom Turn-On Time4 Operating Voltage Range Supply Current Power Down Current Operating Temperature Range 1 Conditions Min ±2.0 Typ Max Units g Best fit straight line 1.0 ±1.0 ±2.0 -10 360 -10 -20 -0.15 1988 3195 4.1 400 2.0 J K ∆ from 25°C within 30Hz @ 1Hz. BW @ -3dB @ 2.7 V – 3.6 V Output High Output Low 25 2.8 0 2048 3.0 3375 4.6 1.0 1.0 30 +10 440 +8 +8 0.15 2108 3555 5.1 2.0 35 100 0.2 75 3.6 1.0 +70 +85 % of FS degrees % % counts/g % % g counts mg/°C counts counts/°C mg/ Hz mg Hz uA V V mS V mA uA °C °C 2.7 50 3.0 2.3 J K -10 -40 NOTES: 1 2 3 4 Guaranteed by measurement of initial offset and sensitivity Cross axis sensitivity is the algebraic sum of the alignment and the inherent sensitivity errors Output settled to within ± 17mg Alignment error is specified as the angle between the true and indicated axis of sensitivity MEMSIC MXC6202xJ/K Rev.A Page 2 of 11 3/20/2006 I2C INTERFACE I/O CHARACTERISTICS Parameter Symbol Logic Input Low Level Logic Input High Level Hysteresis of Schmitt Input Logic Output Low Level Input Leakage Current SCL Clock Frequency START Hold Time START Setup Time LOW Period of SCL HIGH Period of SCL Data Hold Time Data Setup Time Rise Time Fall Time Bus Free Time Between STOP and START STOP Setup Time VIL VIH Vhys VOL Ii fSCL tHD;STA tSU;STA tLOW tHIGH tHD;DAT tSU;DAT tr tf tBUF tSU;STO Test Condition Min. -0.5 1.4 0.2 Typ. Max. 0.6 Unit V V V 0.4 0.1VDD