ISM420R1-C33

Inventek Systems OEM GPS Module Part No. ISM420R1 DOC-DS-20001-2.6 Page 1 Table of Contents 1 2 GENERAL DESCRIPTION ...................................................................................... 4 PART NUMBER DETAIL DESCRIPTION .............................................................. 4 Ordering Information................................................................................................. 4 3 GENERAL FEATURES ............................................................................................. 5 4 Navigation Performance Features ............................................................................... 6 4.1 Improved Jamming Mitigation ........................................................................... 6 4.2 Improved Ephemeris Availability ....................................................................... 6 4.3 Flexible Power Control ....................................................................................... 6 4.4 Advantages .......................................................................................................... 7 5 COMPLIMENTARY DOCUMENTATION ............................................................. 7 5.1 Inventek Systems ................................................................................................ 7 5.2 SiRF / CSR Technology...................................................................................... 7 6 SPECIFICATIONS ..................................................................................................... 8 6.1 General ................................................................................................................ 8 6.2 Module Architecture ........................................................................................... 8 6.3 Hardware Features .............................................................................................. 9 6.4 Recommended Antenna Specifications .............................................................. 9 6.5 Mechanical Specifications ................................................................................ 10 6.6 Environmental Specifications ........................................................................... 11 7 PERFORMANCE ..................................................................................................... 11 7.1 Position and Velocity ........................................................................................ 11 7.2 Time To First Fix (See Note 2) (TTFF) .................................................................. 11 7.3 Dynamic Constraints ......................................................................................... 12 7.4 Timing 1 PPS Output ........................................................................................ 12 7.5 Receiver Sensitivity .......................................................................................... 12 7.6 Differential GPS (DGPS) Modes ...................................................................... 12 7.6.1 Space Based Augmentation System (SBAS) ................................................ 12 7.7 Power States ...................................................................................................... 13 8 HARDWARE ELECTRICAL SPECIFICATIONS ................................................. 13 8.1 Power Supply Maximum Ratings ..................................................................... 13 o In rush current of approx. 55 mA on startup ..................................................... 13 8.1.1 Electrical Specification ................................................................................. 14 8.1.2 Pin Positions.................................................................................................. 14 8.1.3 Detailed Pin Description ............................................................................... 16 9 BASIC OPERATION (SPI/UART or I2C) ............................................................... 19 10 SCHEMATIC EXAMPLE........................................................................................ 21 11 SOFTWARE INTERFACE ...................................................................................... 22 11.1 NMEA input and output messages ................................................................... 22 11.2 SiRF Binary Protocol ........................................................................................ 22 12 Product Compliance Considerations ......................................................................... 22 13 ISM420R1-CX FOOTPRINT ................................................................................... 23 13.1 Module’s package dimensions (mm) ................................................................ 23 ........................................................................................................................................... DOC-DS-20001-2.6 Page 2 14 ORDERING INFORMATION ................................................................................. 24 15 REVISION CONTROL ............................................................................................ 24 16 CONTACT INFORMATION ................................................................................... 24 DOC-DS-20001-2.6 Page 3 1 GENERAL DESCRIPTION The Inventek ISM420R1 is a 48 channel global positioning system (GPS) receiver in a very compact Surface Mount Device (SMD) GPS module with high sensitivity, high gain, and low power. The small form factor GP receiver is designed for a broad spectrum of OEM applications and is based on the fast and deep GPS signal search capabilities of CSR , SiRFstarIV™ architecture. Several key features about this module are: The module is capable of generating and storing extended ephemeris data to an external device for much faster hot starts in weak signal environments. Built-in jamming detection and mitigation to permit fast and accurate navigation solutions in high noise environments. Ability to use an external MEMS device for wakeup when motion is detected, thus reducing power consumption for tracking devices. An addition 4 dB in tracking sensitivity and 5 dB navigation sensitivity over the world class SiRFstar III devices. < 10 mW @ 1.8 volts required to maintain fixes in Trickle Power mode for the ultimate in low power requirements. Applications Industrial Handhelds Hand-held Device for Personal Positioning and Navigation PDA, Pocket PC, computing devices Fleet Management / Asset Tracking AVL and Location-Based Services Cellular handsets Cameras, Asset tracking Patient/Child/Pet tracking 2 PART NUMBER DETAIL DESCRIPTION Ordering Information Device Description GPS Module, Form Factor 1, Commercial ISM420R1 ISM420R1 ISM420-EVB ISM420-INT DOC-DS-20001-2.6 Temp (UART,I2C,SPI) GPS Module, Form Factor 1, Commercial Temp (UART,I2C,SPI) Evaluation Board, UART/I2C/SPI, ISM420 Display,Logging,ISM420INT,Antenna Interposer Board, DIP,UART, ISM420 Ordering Number ISM420R1-C12 ISM420R1-C33 ISM420-EVB ISM420-INT Page 4 3 GENERAL FEATURES                             Based on the high performance features of the SiRFstar IV, GSD4e ROM processor. Compact module size for easy integration: 9.5x 10.5 x 2.4 mm (shield height included). Host UART or SPI or I2C interface High sensitivity navigation engine (PVT) tracks as low as -163dBm 48 track verification channels NMEA-0183, or OSP SiRF binary output SBAS (WAAS or EGNOS) Integrated LNA, SAW Filter, TCXO and RTC Altered search strategy for improved weak-signal acquisition Client Generated Extended Ephemeris Inputs +3.3 V tolerant Single power supply voltage 1.8V. Incremental ephemeris collection allowing quicker time-to-first-fix TTFF. Lead Free Design which is compliant with ROHS requirements EMI/EMC Metal Shield for best RF performance in noisy environments and to accommodate for lower RF emissions/signature for easier FCC compliance. FCC/CE Compliance Certified (In process). Cold, Warm, Hot Start Time: 35, 35, 1 Sec. respectively. Reacquisition Time: 1 second. Protocols: NMEA-0183 and SiRF OSP Binary. SBAS (WAAS or EGNOS) Adaptive Micropower Controller: Only 50 to 500μA maintains hot start capability