Maestro A2200-A User Manual

GPS Receiver A2235-H A Description of Maestro’s GPS Antenna Receiver Module A2235-H User’s Manual Version 1.0

V1.0 – Aug-13 User’s Manual Page 10 of 37 2 Ordering Information 2.1 GPS Receiver A2235-H The order number is built as follows:  A2235-Hxxxx

V1.0 – Aug-13 User’s Manual Page 11 of 37 Figure 3: A2235-H tape specifications (2) Figure 4: A2235-H tape specifications (3)

V1.0 – Aug-13 User’s Manual Page 12 of 37 One complete reel holds 500 (TBC) A2235-H modules. There are 2 kinds of packaging for shipment (TBC):

V1.0 – Aug-13 User’s Manual Page 13 of 37 2.3 Additional Equipment EVA2235-H Evaluation Kit (including one module A2235-H) Table 3: Additional

V1.0 – Aug-13 User’s Manual Page 14 of 37 3 Quick Start In order to allow an easy and quick start with the A2235-H module, this chapter provides

V1.0 – Aug-13 User’s Manual Page 15 of 37 NOTE: It is recommended to supply Vcc continuously! Use SiRFawareTM or other low power modes to re

V1.0 – Aug-13 User’s Manual Page 16 of 37 3.2 Antenna Although the A2235-H offers an on-module antenna, an additional external active antenna ca

V1.0 – Aug-13 User’s Manual Page 17 of 37 For self-start mode, full power operation will be activated once Vcc applied. No power saving mode (

V1.0 – Aug-13 User’s Manual Page 18 of 37 4 Mechanical Outline 4.1 Details Component Side A2235-H All dimensions in [mm] / [(inches)] Figure 8

V1.0 – Aug-13 User’s Manual Page 19 of 37 4.2 Details Solder Side A2235-H Solder pad size (outer pads): 1.0 x 0.8 Solder pad size (inner pads

V1.0 – Aug-13 User’s Manual Page 2 of 37 Revision History Rev. Date Description 0.1 08-15-12 First release 0.2 04-19-13 1.Update I2C interface

V1.0 – Aug-13 User’s Manual Page 20 of 37 5 Pin-out Information 5.1 Layout A2235-H Figure 10: Pin-out information (top view) A2235-H

V1.0 – Aug-13 User’s Manual Page 21 of 37 5.2 Description A2235-H Signals Pin Symbol Function Description 1 nRST Input Reset input, active low

V1.0 – Aug-13 User’s Manual Page 22 of 37 Table 5: Pin description A2235-H 20 ExtInt (GPIO8) Input Interrupt input for MEMS interface (If ExtI

V1.0 – Aug-13 User’s Manual Page 23 of 37 6 Electrical Characteristics 6.1 Operating Conditions Pin Description Min Typical Max 3 Vcc 3.0V 3.3V

V1.0 – Aug-13 User’s Manual Page 24 of 37 6.3 DC Electrical Characteristics Symbol Parameter Min Max Unit TX0, WAKEUP Voh @ 4mA 2.6 Vcc V Vol

V1.0 – Aug-13 User’s Manual Page 25 of 37 7 Mounting This chapter describes the suggested mounting process for the A2235-H GPS re-ceiver modules

V1.0 – Aug-13 User’s Manual Page 26 of 37 Figure 12: Proposal (1) of the PCB design 2. If proposal 1 is not allowed. Placed a round Copper ke

V1.0 – Aug-13 User’s Manual Page 27 of 37 7.3 Recommended Profile for Reflow Soldering Typical values for reflow soldering of the module in conv

V1.0 – Aug-13 User’s Manual Page 28 of 37 8 Use of External Antenna 8.1 Connection of RF Signal The ANT_EXT pin is used to connect the receiver

V1.0 – Aug-13 User’s Manual Page 29 of 37 8.2 External Antenna 8.2.1 Recommended Parameters General GPS active antenna specification: Limitatio

V1.0 – Aug-13 User’s Manual Page 3 of 37 Disclaimer THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF MAESTRO WIRELESS SOLUTIONS LIMITED.

V1.0 – Aug-13 User’s Manual Page 30 of 37 9 Quality and Reliability 9.1 Environmental Conditions Operating temperature -40°C … +85C Operatin

V1.0 – Aug-13 User’s Manual Page 31 of 37 10 Applications and Hints 10.1 Initial Module Start After initially applying power to the module, it i

V1.0 – Aug-13 User’s Manual Page 32 of 37 The push-to-fix mode is initialized and entered using the SiRF Binary Protocol. Please refe

V1.0 – Aug-13 User’s Manual Page 33 of 37 The GPS signals travel at the speed of light, therefore a position inaccuracy directly translates into

V1.0 – Aug-13 User’s Manual Page 34 of 37 11 Evaluation Kit EVA2235-H For demonstration and easy evaluation of GPS performance Maestro

V1.0 – Aug-13 User’s Manual Page 35 of 37 12 Related Information 12.1 Contact This manual was created with due diligence. We hope that it will b

V1.0 – Aug-13 User’s Manual Page 36 of 37 13 List of Figures Figure 1: A2235-H label ...

V1.0 – Aug-13 User’s Manual Page 37 of 37 14 List of Tables Table 1: A2235-H GPS characteristics...

V1.0 – Aug-13 User’s Manual Page 4 of 37 Table of Contents 1 Introduction ...

V1.0 – Aug-13 User’s Manual Page 5 of 37 9 Quality and Reliability ...

V1.0 – Aug-13 User’s Manual Page 6 of 37 1 Introduction A2235-H is an antenna module with SiRF Star IV ROM based chip and an on-board patch ante

V1.0 – Aug-13 User’s Manual Page 7 of 37 1.2 Characteristics Overview The module’s most important characteristics are: Operable at 3.3V / 31mA

V1.0 – Aug-13 User’s Manual Page 8 of 37 1.4 Label The A2235-H label (size: 12.0x 4.0 mm²) contains the following information: Figure 1: A223

V1.0 – Aug-13 User’s Manual Page 9 of 37 1.5 Characteristics The module is characterized by the following parameters. 1.5.1 GPS Characteristics