Telit Wireless Solutions JF2 Product Description
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Telit Wireless Solutions JF2 Product Description

Telit Wireless Solutions JF2 Product Description

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JF2 Product Description
80403ST10103A Rev.7 – 2013-04-18

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  • Page 1 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18...
  • Page 2 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 APPLICABILITY TABLE PRODUCT Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 2 of 43 Mod. 0808 2011-07 Rev.2...
  • Page 3 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Notice While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein.
  • Page 4 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Usage and Disclosure Restrictions License Agreements The software described in this document is the property of Telit and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement.

  • Page 5: Table Of Contents

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Contents Introduction ......................8       Scope ..........................8   1.1. 1.2.   Audience ........................8   Contact Information, Support ..................8 1.3.     1.4.   Document Organization ....................9  ...
  • Page 6 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Active Antenna Gain Requirements ................17 3.11.       Software ........................18   TTFF (Time to First Fix) ....................18 4.1.     4.1.1.  Hot Start ..........................18  4.1.2.  Warm Start ......................... 18 ...
  • Page 7 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 NMEA Output Messages ....................30 7.1.     SiRF OSP Output Messages ..................30 7.2.     7.3.   Software Functions and Capabilities ................31     Mechanical Drawing ....................32   Conformity Assessments ..................34  ...

  • Page 8: Introduction

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Introduction 1.1. Scope Scope of this document is to give an overview of new standalone GPS module JF2. 1.2. Audience This document is intended for customers developing applications using JF2 module. 1.3. Contact Information, Support...

  • Page 9: Document Organization

    “Chapter 14: “Safety Recommendation” provides some safety recommendations that must be follow by the customer in the design of the application that makes use of the JF2 “Chapter 15: “Document History” provides the history of the present document.

  • Page 10: Related Documents

    1.6. Related Documents  JF2 Hardware User Guide,  JF2 EVK User Guide,  JF2 Serial Interfaces Application Note,  JF2_JN3 Low Power Modes Application Note  JF2_JN3 MEMS Application Note,  JF2 Antenna Sense Application Note Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.

  • Page 11: General Description

    10mA (1.8V) in 1-Hz TricklePower™ mode and can maintain hot-start conditions continuously in SiRFaware™ mode while drawing as little as 50-500uA. The JF2 offers A-GPS support and operate with a 1.8V power supply. JF2 supports a full range of satellite-based augmentation systems, including WAAS, EGNOS, MSAS and GAGAN.

  • Page 12: Technical Description

    SYSTEM-ON is HIGH. 5Hz Navigation – The JF2 can run with a navigation update rate of 1Hz or 5Hz. This is controllable in NMEA and OSP mode. Note that the UART baud rate will need to be increased to support the higher message output (about 38400 baud minimum in NMEA).

  • Page 13: Receiver Architecture

    NMEA version 3.0 protocol is supported as well as the new SiRF ONE SOCKET binary PROTOCOL (OSP). 3.2. Receiver Architecture The functional architecture of the JF2 receiver is shown in Figure 1. Note: The LNA is included in the GPS chip for passive antenna operation. ACTIVE/PASS VDD 18...

  • Page 14: Major Components

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 3.3. Major Components All power supply components are on board including capacitors and additional Power-On- Reset (POR) for the 1.8V supply. A 1.8V always ON supply with noise and ripple characteristics mentioned in section 5.1 is critical for reliable operation.

  • Page 15: Vdd 18

    POR is required. 3.3.7. Host Port The JF2 has a single HOST port. The user can select between UART, I2C and SPI ports through the use of external pull-up and pull-downs resistors. See the HW User Guide for more details.

  • Page 16: Physical Characteristics

    3.4. Physical Characteristics The JF2 receiver has advanced miniature packaging and a LGA footprint and is smaller than the Jupiter 32 and similar in size to the Jupiter3 (J3). It is a surface mount device packaged on a printed circuit board, with a metallic RF enclosure on one side. There are 32 surface mount connection pads with a base metal of copper and an Electroless Nickel Immersion Gold (ENIG) finish.

  • Page 17: Marking/Serialization

    80403ST10103A Rev.7 – 2013-04-18 3.10. Marking/Serialization The JF2 supports a 2D barcode indicating the unit serial number below. The Telit 13-character serial number convention is: ‐ characters 1 and 2: year of manufacture (e.g. 12 = 2012, 13 = 2013) ‐...

  • Page 18: Software

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Software 4.1. TTFF (Time to First Fix) TTFF is the actual time required by a GPS receiver to achieve a valid position solution. This specification will vary with the operating state of the receiver, the length of time since the last position fix, the location of the last fix, and the specific receiver design.

  • Page 19: Agps

    Micro Power mode is a very low power maintenance mode implementing SiRFaware technology. In this mode the JF2 remains predominantly in the Hibernate state, but exits this state only as needed to maintain location awareness and valid ephemeris data. Thus high Reproduction forbidden without written authorization from Telit Communications S.p.A.

  • Page 20: Adaptive Trickle Power (Atp)

    GSV at once per second will require at least a baud rate of 19200. This will ensure that the messages are outputted within about 0.75 seconds. Note that the JF2 will continue to run in 1Hz navigation until it gets a navigation fix. Once a navigation fix is attained, it will transition into 5Hz navigation.

  • Page 21: Dynamic Constraints

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 4.7. Dynamic Constraints The JF2 receiver will lose track if any of the following limits are exceeded: ‐ ITAR limits: velocity greater than 514 m/s AND altitude above 18,288 m ‐ altitude: 24,000 m (max) or -500 m (min) ‐...

  • Page 22: Performance Data

    2. 50% @ 30 m/s 3. 50% , -130 dBm (Fu 0.5 ppm, Tu ±2 s, Pu 30 Km) 4. Supported on JF2 Flash designs only. Not available in standard code release. Table 2 – JF2 Performance Data Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.

  • Page 23: Electrical Requirements

    Refer to the HW User Guide for more details. 6.1.2. External Antenna Voltage The JF2 requires an external antenna Bias-T to provide the voltage to the antenna. This is detailed in the HW User Guide. 6.1.3. RF (Radio Frequency) Input RF input is 1575.42 MHz (L1 Band) at a level between –135 dBm and –165 dBm into 50...

  • Page 24: Jamming Performance

    JF2 will drop into Hibernate mode and the patch RAM and CGEE will be cleared. The JF2 will require an ON pulse once the supply has stabilized to wake up the GPS receiver and return to a full power state (CGEE must be reloaded). If the supply voltage drops low enough for a long enough period of time the RAM/BBRAM will be cleared and the GPS will carry out a Cold start once woken up.

  • Page 25: Data Input/Output Specifications

    80403ST10103A Rev.7 – 2013-04-18 6.2. Data Input/Output Specifications All communications between the JF2 receiver and external devices are through the I/O surface mount pads. These provide the contacts for power, ground, serial I/O and control. Power requirements are discussed in the following sections.
  • Page 26 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Absolute Maximum Ratings Parameter Symbol Rating Units Power Supply Voltage Input Pin Voltage VIO_IN Output Pin Voltage VIO_OUT Storage Temperature -50 to 150 Warning – Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.

  • Page 27: Pinout Description

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 6.2.2. Pinout Description Bottom pad pinouts as viewed from the top through to the bottom. Figure 2 Pinout (Top View) Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.
  • Page 28 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Details of the LGA pad functions are shown in Table 6. Pad Number Pad Function Type Description GROUND No connection No connection No connection SYSTEM-ON Indication that GPS is running (Active high) No connection...
  • Page 29 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 GPIO0 General Purpose Input/Output (DR I2C IO) GROUND VDD 18 Main supply voltage, 1.8V (ALWAYS ON) Table 6 – LGA Pad Functions Note: GPIO/UART/SPI/I2C/DR_I2C voltages and levels are based on 1.8V. Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.

  • Page 30: Software Interface

    Note: Contact your local sales representative for details on module configurations with default NMEA 9600 bps. Warning – it is possible to revert the JF2 EEPROM 9600 version to 4800 NMEA if the patch file is erased in the EEPROM by command.

  • Page 31: Software Functions And Capabilities

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 7.3. Software Functions and Capabilities Table 7 shows the software features available to the JF2. Feature Description Availability Improve position accuracy by using freely available satellite SBAS based correction services called SBAS (Satellite Based...

  • Page 32: Mechanical Drawing

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Mechanical Drawing Figure 3 – Mechanical Layout Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 32 of 43 Mod. 0808 2011-07 Rev.2...
  • Page 33 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Figure 4 3D Model Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 33 of 43 Mod. 0808 2011-07 Rev.2...

  • Page 34: Conformity Assessments

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Conformity Assessments 9.1. Declaration of Conformity Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 34 of 43 Mod. 0808 2011-07 Rev.2...

  • Page 35: R&Tte Notify Body Opinion

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 9.2. R&TTE Notify Body Opinion Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 35 of 43 Mod. 0808 2011-07 Rev.2...

  • Page 36: Evaluation Kit

    80403ST10103A Rev.7 – 2013-04-18 Evaluation Kit The JF2 Evaluation Kit is available to assist in the evaluation and integration of the JF2 module in custom applications. The Development Kit contains all of the necessary hardware and software to carry out a thorough evaluation of the JF2 module.

  • Page 37: Product Handling

    11.1. Product Packaging and Delivery JF2 module is shipped in Tape and Reel form. The reeled modules are shipped in 24mm reels with 1000 units per reel. Each reel is ‘dry’ packaged and vacuum sealed in a Moisture Barrier Bag (MBB) with two silica gel packs and placed in a carton.

  • Page 38: Disposal

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 11.5. Disposal We recommend that this product should not be treated as household waste. For more detailed information about recycling this product, please contact your local waste management authority or the reseller from whom you purchased the product.

  • Page 39: Ordering Information

    J-F2-B3D1-Dx JF2 Flash Module (4800 bps v4.1.2-P5 firmware) ‐ J-F2-B3D2-Dx JF2 Flash Module (9600 bps v4.1.2-P5 firmware) ‐ J-F2-C1C8-Dx JF2 512K EEPROM Module (4800bps v4.1.2 Patch 3) ‐ J-F2-C1C9-Dx JF2 512K EEPROM Module (9600bps v4.1.2 Patch 3) ‐ J-F2-C0C6-Dx JF2 ROM Module (4800 bps ROM2.2) ‐...

  • Page 40: Glossary And Acronyms

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Glossary and Acronyms AGPS: Assisted GPS. AGPS uses additional resources to locate the satellites faster and better in poor signal conditions. Almanac: A set of orbital parameters that allows calculation of approximate GPS satellite positions and velocities.
  • Page 41 JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 SGEE: Server Generated Extended Ephemeris data. AGPS using predicted ephemeris data from a server. Supporting Host required. TCXO: Temperature Compensated Crystal Oscillator WAAS: Wide Area Augmentation System The system of satellites and ground stations developed by the FAA (Federal Aviation Administration) that provides GPS signal corrections.

  • Page 42: Safety Recommendations

    JF2 Product Description 80403ST10103A Rev.7 – 2013-04-18 Safety Recommendations READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas: ...

  • Page 43: Document History

    First issue 2012-03-20 Update ordering information 2012-12-17 Update ordering information and inserted conformity assessment. Updated current consumption for JF2 ROM/EEPROM variants in table 3 of §5.2.1 2013-02-26 Update for ROM2.2 version of JF2. 2013-03-13 Update thickness/height data and warning for using external SPI flash.

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