Summary of Contents for Maestro Wireless Solution A5100-A
- Page 1 GPS/GLONASS Receiver A5100-A A Description of Maestro’s GPS/GLONASS Receiver Module A5100-A User’s Manual Version 1.0...
- Page 2 Revision History Rev. Date Description 10-29-13 First draft. Updates according to DV samples. 02-10-14 03-03-14 Updates Current data and add some picture mm-dd-yy Name Date Signature Written by Happy wen 03-03-14 Checked by Sam Law, Matthieu 03-03-14 S L,M Approval by Frank Tang, Calvin Yau 03-03-14 F T,C Y...
- Page 3 Disclaimer THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF MAESTRO 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/GLONASS Receiver A5100-A ..............10 2.2 Packing of the A5100-A .................. 10 2.3 Additional Equipment ..................12 3 Quick Start ......................13 3.1 Minimum Configuration ................... 13 ... - Page 5 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 10.2 Proper Shutdown ..................33 ...
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Page 6: Introduction
GPS applications where performance, cost and time to market are prime considerations. A5100-A is a drop-in replacement solution for all A2200-A customers. It is housed in a 15.0 x 10.2 x 2.5 mm 22 pins SMD package with castellated edge that includes the... -
Page 7: Characteristics Overview
• Supported temperature range: -40°C to +85°C • Single-sided SMT component, for reflow soldering • Tape & reel packaging The A5100-A receiver modules is available as off-the-shelf components, 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... -
Page 8: Label
1.4 Label The A5100-A labels hold the following information: Figure 1: A5100-A label The label is placed on the shield of the module. The data matrix code holds the product type, part number, patch release, hardware release, factory code, year &... -
Page 9: Characteristics
2.5 mm, 0.1” (Max) A5100-A Weight 0.6 g, 0.022 oz Table 2: A5100-A dimensions and weight 1.6 Handling Precautions The GPS/GLONASS receiver module A5100-A is sensitive to electrostatic discharge (ESD). Please handle with appropriate care. V1.0-Mar-14 User’s Manual Page 9 of 43... -
Page 10: Ordering Information
The order number is built as follows: • A5100-Axxxxxxx A5100-A is the model name. The “xxxxxxx” refers to the current chipset and patch (if appropriate) versions on the module. The latest version will be provided if no version number is specified. - Page 11 Figure 3: A5100-A tape specifications (2) Figure 4: A5100-A tape specifications (3) One complete reel holds 1300 PCS A5100-A modules. There are 1 kinds of packaging for shipment: 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...
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Page 12: Additional Equipment
The evaluation boards are always shipped with latest ROM version and patch loaded. The EVA5100-A includes the following components: • Evaluation Board (labeled EVA5100-A) with one additional A5100-A GPS/GLONASS receiver • Active GPS/GLONASS antenna • USB cable to connect to your PC •... -
Page 13: Quick Start
3 Quick Start In order to allow an easy and quick start with the A5100-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). - Page 14 RS232 interface based on the GPS/GLONASS module A5100-A using a passive antenna and with backup voltage on V_BAK. Before removing Vcc, it is highly recommended to put A5100-A into hibernation mode either by ON_OFF pin or software command .
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Page 15: Antennas
The A5100-A supports passive antennas via an integrated LNA directly. 3.2.2 Active Antennas The A5100-A also supports active antennas directly, i.e. by offering an antenna voltage feed pin (VANT – pin 9). It is recommended to use an active antenna with a supply voltage of 3 to 5 VDC and a maximum current draw of 50 mA. -
Page 16: Serial Port Settings
3.3 Serial Port Settings In UART operation (defined by the external pull-up resistor as outlined in Minimum Configuration) the default settings are: • NMEA, 9600 baud, 8 data bits, no parity, 1 stop bit, no flow control 3.3.1 Change Serial Port setting This command message is used to set the protocol (SiRF OSP or NMEA) and/or the communication parameters (Baud rate, data bits, stop bits, and parity). -
Page 17: Self-Start Configuration
3.5 Self-start Configuration In order to minimize the GPIO required for operating A5100-A, WAKEUP (pin 19) and ON_OFF (pin 6) can be tied together for entering the self-start mode such that no ON_OFF pulse requires. The following picture shows the recommended connec- tion for self-start configuration with UART host port enabled. - Page 18 No power save mode (PTF / MPM / TP) will be supported. Customer can toggle the ON_OFF pin so as to put the module into hibernation and then remove the Vcc. A5100-A will be self-started again in full power mode when Vcc applied.
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Page 19: Mechanical Outline
4 Mechanical Outline 4.1 Details Component Side A5100-A All dimensions in [mm, (inch)] Figure 10: Mechanical outline component side A5100-A V1.0-Mar-14 User’s Manual Page 19 of 43... -
Page 20: Details Solder Side A5100-A
4.2 Details Solder Side A5100-A Solder pad size (outer pads): 1.0 x 0.8 Solder pad size (inner pads): 1.2 x 1.2 All dimensions in [mm] Figure 11: Mechanical outline solder side A5100-A V1.0-Mar-14 User’s Manual Page 20 of 43... -
Page 21: Pin-Out Information
5 Pin-out Information 5.1 Layout A5100-A “Pin 1” marker Figure 12: Pin-out information (bottom view) A5100-A Center Ground pins are for shock / vibration resistance purpose. V1.0-Mar-14 User’s Manual Page 21 of 43... -
Page 22: Description A5100-A Signals
5.2 Description A5100-A Signals Pin Symbol Function Description GPIO2 Input/Output Leave open VOUT Voltage output Permanent VCC-0.1 V voltage output for up to 50mA current TX0/ Output Serial output 0, NMEA out if configured for UART SPI DO/ SPI data out pin when module works in SPI mode... - Page 23 V_BAK Power Supply Back - up pin of module for “super cap” or battery nRST Input Reset input, active low Table 5: Pin description A5100-A V1.0-Mar-14 User’s Manual Page 23 of 43...
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Page 24: Electrical Characteristics
） Hibernate Status 60uA Table 6: A5100-A electrical characteristics (1) Peak searching current is characterized by millisecond bursts above average searching current (2) Average searching current is typically only the first two seconds of TTFF (3) Tracking current typically includes tracking and the post searching portion of TTFF (4) During standby state: RTC block and core powered on and clock off. -
Page 25: Absolute Maximum Ratings
6.2 Absolute Maximum Ratings Symbol Parameter Min Max Unit A5100-A Power supply -0.3 +3.6 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 Antenna supply voltage... -
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 Table 8: DC electrical characteristic A5100-A V1.0-Mar-14 User’s Manual Page 26 of 43... -
Page 27: Mounting
7 Mounting This chapter describes the suggested mounting process for the A5100-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 9: Reflow soldering profile A5100-A 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 & Glonass Antennas
Vias to GND Layer GPS receiver solder pads Figure 14: Antenna connector strip line A5100-A 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 Figure 15: Strip line parameters A5100-A 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.
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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 11) should be placed as close as possible to the GPS&GLONASS receiver. The signal power lost by the antenna cable or lost by the strip line on the PCB cannot be recovered by the LNA (Low Noise Amplifier) integrated in the GPS&GLONASS receiver. -
Page 32: Quality And Reliability
9 Quality and Reliability 9.1 Environmental Conditions Operating temperature -40 … +85°C Operating humidity Max. 85% r. H., non-condensing, at 85°C MSL JEDEC (Moisture Sensitivity Level) 3 Storage 6 months in original package. Table 10: Environmental conditions 9.2 Product Qualification Prior to product qualification the GPS&GLONASS receiver is preconditioned ac- cording to EIA/JEDEC standard JESD22-A113-B / Level 3. -
Page 33: Applications And Hints
UART mode, messages should be transmitted afterwards. If no messages should appear, a new toggling should be applied. 10.2 Proper Shutdown A controlled and orderly shutdown while the A5100-A is running in full power mode can be initiated by • A 200ms pulse on the ON_OFF pin, •... - Page 34 ROM2.1 the according command is supported in NMEA and SiRF OSP mode. After a short delay the module will switch into hibernate mode. The RTC will keep on running and SRAM is backed with the typical current of 60 µA drawn from Vcc. To wake the module up again, toggling the ON_OFF pin is necessary (200ms pulse width).
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Page 35: Battery Back-Up
10.6 Battery Back-up This section describes how to back-up the RTC and the SRAM of the GPS/GLONASS receiver module. The basics of the first example addresses providing a back-up power supply by using a separate battery or a “Super cap”. While the “Super cap”... -
Page 36: Extended Ephemeris
10.7 Extended Ephemeris The receiver is capable of supporting two versions of using Extended Ephemeris (EE) data. The first one is the version, where the EE data are calculated on a server, are transmitted to device incorporating the receiver, and are then loaded into the receiver. -
Page 37: Antenna Status Adaptation
10.8 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 38: Antenna Sensor With Current Limiter
10.8.2 Antenna Sensor with Current Limiter This proposal is similar to the first one, but includes a current limiter. Comments and notes as above apply. GPS&GLONASS We strongly recommend simulating and testing the receiver inte- grated in your product design before implementing the finalized product in the appro- In any case it is the responsibility of the designer to test priate market application. -
Page 39: Vant Pin
Vant pin. The easiest way to do that is to connect Vcc to VANT. The maximum current is 50 mA. Note: Shortcut between ANT and GND may damage the A5100-A GPS&GLONASS receiver module. This should be avoided by using an antenna current limiter. -
Page 40: Hz Navigation Update Rate
The given values are based on a 10 satellite, static GPS&GLONASS simulator scenario. Figure 19: 1PPS waveform (reference) 10.11 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 41: Evaluation Kit Eva5100-A
11 Evaluation Kit EVA5100-A For demonstration and easy evaluation of GPS&GLONASS performance Maestro offers an evaluation kit (including one GPS&GLONASS A5100-A module). It con- tains 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 OSP information and accepting commands. -
Page 42: Related Information
12 Related Information 12.1 Contact 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&GLONASS module. Inputs regarding errors or mistaken verbalizations and comments or proposals to Maestro, HongKong, for further improvements are highly appreciated. -
Page 43: List Of Figures
Figure 3: A5100-A tape specifications (2) ............... 11 Figure 4: A5100-A tape specifications (3) ............... 11 Figure 5: Minimum configuration A5100-A with continued Vcc supply ....13 Figure 6: Minimum configuration A5100-A with Vbak ..........14 ...