Related Manuals for Maestro A2100-A/B
Summary of Contents for Maestro A2100-A/B
- Page 1 GPS Receivers A2100-A/B A Description of Maestro’s GPS Receiver Module A2100-A/B User’s Manual Version 2.0...
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Page 2: Revision History
Label correction; adaptations after firmware 4.0.1 release; oth- 04-15-10 ers … 02-09-11 1.Shutdown sequence introduced; more figures defined; smaller corrections 2. New style; moved to Maestro 05-04-11 1.Order number correction 2. Modify MEMS details 3. Modify packaging describe 05-17-11 1.Tracking current updated 06-03-11 1.Correction of Mechanical Characteristics... - Page 3 WIRELESS SOLUTIONS LIMITED. IT MAY NOT BE COPIED OR TRANSMITTED BY ANY MEANS, PASSED TO OTHERS, OR STORED IN ANY RETRIEVAL SYSTEM OR MEDIA, WITHOUT PRIOR CONSENT OF MAESTRO OR ITS AUTHORIZED AGENTS. THE INFORMATION IN THIS DOCUMENT IS, TO THE BEST OF OUR KNOWLEDGE, ENTIRELY CORRECT.
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Page 4: Table Of Contents
1.6 Handling Precautions ..................9 2 Ordering Information ..................10 2.1 GPS Receivers A2100-A/B ................10 2.2 Packing of the A2100-A/B ................10 2.3 Additional Equipment ..................13 3 Quick Start ......................14 3.1 Minimum Configuration ................... 14 ... - Page 5 8.2.2 Active Antennas ......................31 9 Quality and Reliability ..................32 9.1 Environmental Conditions ................32 9.2 Product Qualification ..................32 9.3 Production Test ....................32 10 Applications and Hints .................. 33 10.1 Initial Module Start ..................33 ...
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Page 6: Introduction
1 Introduction The GPS modules A2100-A and A2100-B are Maestro’s first implementation of CSR’s SiRFstarIV chip on GPS modules. Both are highly integrated GPS receivers that can be used as SMT components. A very easy implementation (power, serial, ON_OFF, and antenna) allows receiving position, velocity and time information. -
Page 7: Characteristics Overview
100% tested and shipped in standard tape-and-reel package. 1.3 RoHS and Lead-Free Information Maestro’s products marked with the lead-free symbol either on the module or the packaging comply with the "Directive 2002/95/EC of the European Parliament and the Council on the Restriction of Use of certain Hazardous Substances in Electrical and Electronic Equipment"... -
Page 8: Label
1.4 Label The A2100-A labels hold the following information: Figure 1: A2100-A label The label is placed on the shield of the module. The data matrix code holds the product type, software version, software release, hardware release, factory code, year & week of assembly and a 6-digit serial number. The A2100-B's labels show a "B"... -
Page 9: Characteristics
A2100-A/B Weight 1.2 g, 0.042 oz Table 2: A2100-A/B dimensions and weight 1.6 Handling Precautions The GPS receiver module A2100-A/B is sensitive to electrostatic discharge (ESD). Please handle with appropriate care. V2.0 – Jan-13 User’s Manual Page 9 of 41... -
Page 10: Ordering Information
If no firmware version is refe- renced in an order, the latest version will be provided. 2.2 Packing of the A2100-A/B The A2100-A/B GPS modules come in a tape and reel package suitable for pick and place machines. Figure 2: A2100-A/B tape specifications (1) V2.0 –... - Page 11 Figure 3: A2100-A/B tape specifications (2) Figure 4: A2100-A/B tape specifications (3) One complete reel holds 900 A2100-A/B modules. There are 2 kinds of packaging for shipment: A: One box holds 1 reel Reel diameter: 33 cm Inner box dimensions: 36(W) x 36(L) x 4.5 (H) cm Box dimensions: 38.8 (W) x 38.8 (L) x 5.7 (H) cm...
- Page 12 B. One box holds 3 reels Reel diameter: 33 cm Inner box dimensions: 36 (W) x 36 (L) x 4.5 (H) cm Outer box dimensions: 38 (W) x 38 (L) x 16 (H) cm Gross weight: 6.13 Kg Net weight: 3.51 Kg V2.0 –...
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Page 13: Additional Equipment
2.3 Additional Equipment EVA2100-A Evaluation Kit (including one module A2100-A) EVA2100-B Evaluation Kit (including one module A2100-B) Table 3: Additional equipment A detailed description of the EVA2100-A/B Evaluation Kit can be found in the ap- propriate manual. The evaluation boards are always shipped with latest firmware loaded. -
Page 14: Quick Start
3 Quick Start In order to allow an easy and quick start with the A2100-A module, this chapter pro- vides a short overview on the important steps to be taken to receive NMEA mes- sages with position information on a serial port (UART). NOTE 1: The A2100-A needs an external pull-up resistor to be configured for UART operation. -
Page 15: Antennas
risks ranging from minor impact on TTFF to fatal corruption of flash memory code area! RS232 Level Shifter RS232 Level Shifter 3.3V 3.3V RS232 Out RS232 Out MAX3232 MAX3232 Figure 6: RS232 level shifter Remarks: • Place C1 to C5 (here: 0.1µF) close to MAX3232. For capacity values see datasheet of actual component used. -
Page 16: Serial Port Settings
Pull up to 1.8V Boot loader active for firmware upgrade Table 4: BOOTSEL operating mode A specific tool (SiRFFlash) is required for firmware upgrade upon request to Maestro. Recommended circuitry on application board was indicated below. Figure 7: BOOTSEL application V2.0 –... -
Page 17: Mechanical Outline
4 Mechanical Outline 4.1 Details Component Side A2100-A / B 15.24 (0.6) 15.24 (0.6) All dimensions in [mm, (inch)] Figure 8: Mechanical outline component side A2100-A/B V2.0 – Jan-13 User’s Manual Page 17 of 41... -
Page 18: Details Solder Side A2100-A/B
2.54 2.54 7.62 7.62 Solder pad size (outer pads): 1.0 x 0.8 Solder pad size (inner pads): 1.5 x 1.5 All dimensions in [mm] Figure 9: Mechanical outline solder side A2100-A/B V2.0 – Jan-13 User’s Manual Page 18 of 41... -
Page 19: Pin-Out Information
5 Pin-out Information 5.1 Layout A2100-A Bottom Bottom RX0 / SPI DI [IN – 3.3V] RX0 / SPI DI [IN – 3.3V] RX0 / SPI DI [IN – 3.3V] nRST [IN – 3.3V] nRST [IN – 3.3V] nRST [IN – 3.3V] TX0 / SPI DO [OUT –... -
Page 20: Description A2100-A Signals
5.2 Description A2100-A Signals Pin Symbol Function Description nRST Input Reset input, active low BOOTSEL Input Special boot mode – leave open for normal operation; HIGH – boot loader active; HIGH level: 1.8V Power Supply 3.0 – 3.6 VDC (power supply) WAKEUP Output Status of digital section, Push-Pull output... -
Page 21: Layout A2100-B
5.3 Layout A2100-B Bottom Bottom RX0 / SPI DI / I2C DIO [1.8V] RX0 / SPI DI / I2C DIO [1.8V] nRST [IN – 1.8V] nRST [IN – 1.8V] TX0 / SPI DO / I2C CLK [1.8V] TX0 / SPI DO / I2C CLK [1.8V] BOOTSEL [IN –... -
Page 22: Description A2100-B Signals
5.4 Description A2100-B Signals Pin Symbol Function Description nRST Input Reset input, active low BOOTSEL Input Special boot mode – leave open for normal operation; HIGH – boot loader active; HIGH level: 1.8V N.C. None Leave open WAKEUP Output Status of digital section, Push-Pull output Low = OFF, KA (Keep Alive)-only, Hibernate, or Standby mode High = ON, operational mode Identical logic to RFPWUP of A1084 on same pin! - Page 23 (Host port Host port I2C data I/O pin when module works in hist port I2C I2C_DIO) mode. Table 6: Pin description A2100-B V2.0 – Jan-13 User’s Manual Page 23 of 41...
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Page 24: Electrical Characteristics
6 Electrical Characteristics 6.1 Operating Conditions Description Typical 3.0V 3.3V 3.6V Full power Mode (Searching) Peak Current 45mA Full power mode (Searching) Current 33.6mA Average Full power mode (Tracking) Current 18.5mA Average TricklePower Mode 4.6mA Push-to-Fix Mode 56.5uA 40uA Micro Power Mode（SiRFaware ）... -
Page 25: Absolute Maximum Ratings
6.2 Absolute Maximum Ratings Symbol Parameter Min Max Unit A2100-A Power supply -0.3 +4.6 A2100-B Power supply -0.3 +2.2 Voltage to I/O pins -0.3 +3.6 Input current on I/O pins Itdv Absolute sum of all input currents during overload condition Storage temperature °C Vant... -
Page 26: Dc Electrical Characteristics
6.3 DC Electrical Characteristics Symbol Parameter Max Unit TX0, WAKEUP Voh @ 4mA Vol @ 4mA 0.45 nRST for safe reset ON_OFF 1.35 -0.3 0.45 BOOTSEL 1.35 Table 10: DC electrical characteristic A2100-A Symbol Parameter Max Unit TX0, WAKEUP Voh @ 4mA Vol @ 4mA nRST for safe reset... -
Page 27: Mounting
7 Mounting This chapter describes the suggested mounting process for the A2100-A receiver modules. In a RoHS compliant product with a RoHS compliant process it is rec- ommended to use chemical tin as the counter-part to the module’s pins. This will guarantee highest resistance against shocks. -
Page 28: Recommended Profile For Reflow Soldering
6°C / second max. Time 25°C to peak temperature 8 minutes max. Table 12: Reflow soldering profile A2100-A/B The solder pads hold solder of a thickness of about 150 µm for improved solder process results. As results of soldering may vary among different soldering systems and types of... -
Page 29: Use Of Gps Antennas
Vias to GND Layer GPS receiver solder pads Figure 13: Antenna connector strip line A2100-A/B In order to achieve the impedance of 50 Ω, the width of the strip line needs to be calculated. It depends on the thickness or height of the PCB layer (both parameters are shown in following drawing). - Page 30 In this case, the width should be about 1.8 times the height of the PCB: W = 1.8 x H In the example, one would get a width of W = 1.8 x 0.8 mm = 1.44 mm. V2.0 – Jan-13 User’s Manual Page 30 of 41...
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Page 31: Antenna Connections
8.2 Antenna Connections 8.2.1 Passive Antennas A passive antenna connected to ANT input (pin 12) should be placed as close as possible to the GPS receiver. The signal power lost by the antenna cable or lost by the strip line on the PCB can not be recovered by the LNA (Low Noise Amplifier) integrated in the GPS receiver. -
Page 32: Quality And Reliability
• High Temperature Operating Life +85°C • Vibration Variable Frequency • Mechanical Shock Please contact Maestro for detailed information. 9.3 Production Test Each module is electrically tested prior to packing and shipping to ensure state of the art GPS receiver performance and accuracy. -
Page 33: Applications And Hints
TTFF to fatal, permanent corruption of flash memory code area on the module. A controlled and orderly shutdown while the A2100-A/B is running in full power mode can be initiated by • A 200ms pulse on the ON_OFF pin, •... -
Page 34: Hibernate Mode
duty cycles, it is necessary to toggle the ON_OFF pin. Toggling is done by pulling the signal to HIGH for about 200ms. 10.5 Hibernate Mode In order to enter Hibernate Mode it is necessary to send a shutdown command or to toggle to ON_OFF pin by pulling the signal to HIGH for about 200ms. -
Page 35: Antenna Status Adaptation
10.7 Antenna Status Adaptation This chapter shall give assistance in designing a circuit for detecting if an active antenna is connected to the module. The information about the antenna status can be derived from the ANTSTAT signal generated by this circuit. The examples use values for components that roughly result in the following ANTSTAT output: •... -
Page 36: Antenna Sensor With Current Limiter
10.7.2 Antenna Sensor with Current Limiter This proposal is similar to the first one, but includes a current limiter. Comments and notes as above apply. We strongly recommend simulating and testing the GPS receiver integrated in your product design before implementing the finalized product in the appropriate market ap- plication. -
Page 37: Vant Pin
10.8 VANT Pin The VANT pin is an input pin. The supply voltage for an active GPS antenna on the ANT input has to be fed into the Vant pin. The easiest way to do that is to connect Vcc to VANT. The maximum cur- rent is 50 mA. -
Page 38: Hz Navigation Update Rate
Figure 17: 1PPS waveform (reference) 10.10 5 Hz Navigation Update Rate User can select 1Hz or 5Hz output rate of navigation computation and message, it supports rapid change of direction and improves accuracy on sport-related applica- tions.1Hz is the default Navigation Update Rate, If the user want to change to 5Hz Navigation Update Rate, Please refer to command below: Enable 5Hz Navigation Update Rate command ·... -
Page 39: Evaluation Kit Eva2100-A/B
11 Evaluation Kit EVA2100-A/B For demonstration and easy evaluation of GPS performance Maestro offers an evaluation kit (including one GPS A2100-A/B module). It contains a USB interface with according drivers to connect easily to a PC. The USB interface is an extension of the serial port 0, therefore sending NMEA sentences or binary information and ac- cepting commands. -
Page 40: Related Information
This manual was created with due diligence. We hope that it will be helpful to the user to get the most out of the GPS module. Inputs regarding errors or mistaken verbalizations and comments or proposals to Maestro, Hongkong, for further improvements are highly appreciated. Maestro Wireless Solutions Limited Add:Unit 3603-09,36/F.,118 Connaught Road West,HK... -
Page 41: List Of Figures
Figure 6: RS232 level shifter .................. 15 Figure 7: BOOTSEL application ................16 Figure 8: Mechanical outline component side A2100-A/B ........17 Figure 9: Mechanical outline solder side A2100-A/B ..........18 Figure 10: Pin-out information (bottom view) A2100-A ........... 19 ...
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