Three-axis Compass with Algorithms HMC6343 The Honeywell HMC6343 is a fully integrated compass module that includes firmware for heading computation and calibration for magnetic distortions. The module combines three-axis magneto-resistive sensor, three-axis MEMS accelerometer, analog and digital support circuits, microprocessor and algorithms required for heading computation. By combining the sensor elements, processing electronics, and firmware into a 9.0mm by 9.0mm by 1.9mm LCC package, Honeywell offers a complete, ready to use tilt- compensated electronic compass. This provides design engineers with the simplest solution to integrate high volume, cost effective compasses into binoculars, cameras, night vision optics, laser ranger finders, antenna positioning, and other industrial compassing applications. The HMC6343 utilizes Honeywells Anisotropic Magnetoresistive (AMR) technology that provides advantages over other magnetic sensor technologies. The sensors feature precision sensitivity and linearity, solid-state construction with very low cross-axis sensitivity designed to measure both direction and magnitude of Earths magnetic field. Honeywells Magnetic Sensors are among the most sensitive and reliable low-field sensors in the industry. FEATURES BENEFITS Compass with Heading/Tilt Outputs A complete compass solution including compass firmware Three-Axis MR Sensors, Accelerometers A digital compass solution with heading and tilt angle outputs in a and a Microprocessor in a Single chip-scale package Package Compass Algorithms For computation of heading, and magnetic calibration for hard-iron 9 x 9 x 1.9mm LCC Surface Mount Small size, easy to assemble and compatible with high speed Package surface mount technology assembly Low Voltage Operations Compatible with battery powered applications EEPROM Memory To store compass data for processor routines 2 Digital Serial Data Interface I C Interface, easy to use 2-wire communication for heading output Lead Free Package Construction Complies with RoHS environmental standards Flexible Mounting Can be mounted on horizontal or vertical circuit boards HMC6343 SPECIFICATIONS Characteristics Conditions Min Typ Max Units Power Supply (1) Supply Voltage VDD Referenced to GND 2.7 3.3 3.6 Volts (3) Current All VDD pins connected together Run Mode (10Hz Output) 4.5 mA Standby Mode 4.0 mA Sleep mode 120 A Power-up peak (VDD = 3.3V) 20 mA (1) Power-on Rate Minimum rise time 0.05 - - V/msec (microprocessor) Compass Function (3) Field Range total applied magnetic field -1500 +1500 mgauss (de-gauss if exposed to >5gauss) (2) Heading Accuracy At Level 2.0 3.0 deg RMS (3) 15 tilt 3.0 (3) 60 tilt 4.0 (3) Heading Resolution Output Data 0.1 degrees Heading Output Data (1) 0.3 degrees (3) Repeatability (3) Heading Hysteresis 0.3 degrees Output Data (1) (1) Update Rate Run Mode (1, 5, 10Hz) 1 5 10 Hz (3) Tilt Range From Horizontal 80 degrees (2) Tilt Accuracy 0 to 15 1 degrees (3) 15 to 60 2 (3) Tilt Resolution Output Data 0.1 degrees (3) Tilt Repeatability Output Data (1) 0.2 degrees Offset Straps (1) Resistance Measured from OFF+ to OFF- 8 ohms General Operating Ambient -40 85 C (3) Temperature Storage Ambient, unbiased -55 125 C (3) Temperature (3) Weight 0.32 grams (3) ESD Voltage 250 V (3) MSL Moisture Sensitivity Level 3 - (3) Solder Temp Peak Reflow Temp (< 30 seconds) 250 C (1) By Design (2) Tested at 25C and 3.3V except stated otherwise. (3) Characterized www.magneticsensors.com 2