Maestro A1084 Manual do Utilizador

GPS Receivers A2100-A/B A Description of Maestro’s GPS Receiver Module A2100-A/B User’s Manual Version 1.9

V1.7 – Jul-12 User’s Manual Page 10 of 41 2 Ordering Information 2.1 GPS Receivers A2100-A/B The order number is built as follows: • A2100-Axx

V1.7 – Jul-12 User’s Manual Page 11 of 41 Figure 3: A2100-A/B tape specifications (2) Figure 4: A2100-A/B tape specifications (3) One compl

V1.7 – Jul-12 User’s Manual Page 12 of 41 B. One box holds 3 reels Reel diameter: 33 cm Inner box dimensions: 36 (W) x 36 (L) x 4.5 (H) cm Oute

V1.7 – Jul-12 User’s Manual Page 13 of 41 2.3 Additional Equipment EVA2100-A Evaluation Kit (including one module A2100-A) EVA2100-B Evaluatio

V1.7 – Jul-12 User’s Manual Page 14 of 41 3 Quick Start In order to allow an easy and quick start with the A2100-A module, this chapter pro-vides

V1.7 – Jul-12 User’s Manual Page 15 of 41 risks ranging from minor impact on TTFF to fatal corruption of flash memory code area! GND123456789C1

V1.7 – Jul-12 User’s Manual Page 16 of 41 3.3 Serial Port Settings In UART operation (defined by the external pull-up resistor as outlined in Min

V1.7 – Jul-12 User’s Manual Page 17 of 41 4 Mechanical Outline 4.1 Details Component Side A2100-A / B 15.24 (0.6)15.24 (0.6)15.24 (0.6)15.24 (0.

V1.7 – Jul-12 User’s Manual Page 18 of 41 4.2 Details Solder Side A2100-A/B 15.2413.7167.622.5412.71.2715.247.621.5 x 1.51.0 x 0.81.271.272.5415

V1.7 – Jul-12 User’s Manual Page 19 of 41 5 Pin-out Information 5.1 Layout A2100-A 12131415161718192021221110987654321GND GND GNDGNDGND GND

V1.7 – Jul-12 User’s Manual Page 2 of 41 Revision History Rev. Date Description 0.1 08-24-09 First draft, based on A1084 V1.1 0.2 0

V1.7 – Jul-12 User’s Manual Page 20 of 41 5.2 Description A2100-A Signals Pin Symbol Function Description 1 nRST Input Reset input, active l

V1.7 – Jul-12 User’s Manual Page 21 of 41 5.3 Layout A2100-B 12131415161718192021221110987654321GND GND GNDGNDGND GND GNDGND GND1 nRST [IN – 1.8

V1.7 – Jul-12 User’s Manual Page 22 of 41 5.4 Description A2100-B Signals Pin Symbol Function Description 1 nRST Input Reset input, active l

V1.7 – Jul-12 User’s Manual Page 23 of 41 (Host port I2C_DIO) Host port I2C data I/O pin when module works in hist port I2C mode. Table 6: Pin de

V1.7 – Jul-12 User’s Manual Page 24 of 41 6 Electrical Characteristics 6.1 Operating Conditions Pin Description Min Typical Max Vcc 3.0V 3.3V

V1.7 – Jul-12 User’s Manual Page 25 of 41 6.2 Absolute Maximum Ratings Symbol Parameter Min Max UnitVcc A2100-A Power supply -0.3 +4.6 V Vc

V1.7 – Jul-12 User’s Manual Page 26 of 41 6.3 DC Electrical Characteristics Symbol Parameter Min Max UnitTX0, WAKEUP Voh @ 4mA 2.6 Vcc V V

V1.7 – Jul-12 User’s Manual Page 27 of 41 7 Mounting This chapter describes the suggested mounting process for the A2100-A receiver modules. In a

V1.7 – Jul-12 User’s Manual Page 28 of 41 7.2 Recommended Profile for Reflow Soldering Typical values for reflow soldering of the module in conve

V1.7 – Jul-12 User’s Manual Page 29 of 41 8 Use of GPS Antennas 8.1 Connecting a GPS antenna to the GPS receiver The ANT pin is used to connect a

V1.7 – Jul-12 User’s Manual Page 3 of 41 Disclaimer THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF MAESTRO WIRELESS SOLUTIONS LIMITED. IT MAY

V1.7 – Jul-12 User’s Manual Page 30 of 41 In this case, the width should be about 1.8 times the height of the PCB: W = 1.8 x H In the example,

V1.7 – Jul-12 User’s Manual Page 31 of 41 8.2 Antenna Connections 8.2.1 Passive Antennas A passive antenna connected to ANT input (pin 12) should

V1.7 – Jul-12 User’s Manual Page 32 of 41 9 Quality and Reliability 9.1 Environmental Conditions Operating temperature -40 … +85°C Operating hum

V1.7 – Jul-12 User’s Manual Page 33 of 41 10 Applications and Hints 10.1 Initial Module Start After initially applying power to the module, it is

V1.7 – Jul-12 User’s Manual Page 34 of 41 duty cycles, it is necessary to toggle the ON_OFF pin. Toggling is done by pulling the signal to HIGH f

V1.7 – Jul-12 User’s Manual Page 35 of 41 10.7 Antenna Status Adaptation This chapter shall give assistance in designing a circuit for detecting

V1.7 – Jul-12 User’s Manual Page 36 of 41 10.7.2 Antenna Sensor with Current Limiter This proposal is similar to the first one, but includes a cu

V1.7 – Jul-12 User’s Manual Page 37 of 41 10.8 VANT Pin The VANT pin is an input pin. The supply voltage for an active GPS antenna on the ANT in

V1.7 – Jul-12 User’s Manual Page 38 of 41 Figure 17: 1PPS waveform (reference) 10.10 5 Hz Navigation Update Rate User can select 1Hz or 5Hz ou

V1.7 – Jul-12 User’s Manual Page 39 of 41 11 Evaluation Kit EVA2100-A/B For demonstration and easy evaluation of GPS performance Maestro offers a

V1.7 – Jul-12 User’s Manual Page 4 of 41 Table of Contents 1 Introduction...

V1.7 – Jul-12 User’s Manual Page 40 of 41 12 Related Information 12.1 Contact This manual was created with due diligence. We hope that it will be

V1.7 – Jul-12 User’s Manual Page 41 of 41 13 List of Figures Figure 1: A2100-A label ...

V1.7 – Jul-12 User’s Manual Page 5 of 41 8.2.2 Active Antennas...

V1.7 – Jul-12 User’s Manual Page 6 of 41 1 Introduction The GPS modules A2100-A and A2100-B are Maestro’s first implementation of CSR’s SiRFstarI

V1.7 – Jul-12 User’s Manual Page 7 of 41 1.2 Characteristics Overview The module’s most important characteristics are: • A2100-A o Operable at

V1.7 – Jul-12 User’s Manual Page 8 of 41 1.4 Label The A2100-A labels hold the following information: Figure 1: A2100-A label The label is p

V1.7 – Jul-12 User’s Manual Page 9 of 41 1.5 Characteristics The modules are characterized by the following parameters. 1.5.1 GPS Characteristic