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GPS Receivers A2100-A/B

A Description of Maestro’s

GPS Receiver Module A2100-A/B

User’s Manual

Version 1.2

Summary of Contents for A2100-A

Page 1: ...GPS Receivers A2100 A B A Description of Maestro s GPS Receiver Module A2100 A B User s Manual Version 1 2...

Page 2: ...stics corrected 0 5 02 12 10 New title picture updated label information 0 6 03 09 10 Included A2100 B additional Minimum configuration for active antenna emphasized that VANT is an input 0 7 04 15 10...

Page 3: ...FOR USE IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF MAESTRO THIS DOCUMENT MAY PROVIDE LINKS TO OTHER WORLD WIDE WEB SITES OR RESOURCES BECAUSE MAESTRO HAS NO CONTROL OV...

Page 4: ...2 2 Active Antennas 15 3 3 Serial Port Settings 16 3 4 Improved TTFF 16 3 5 Firmware Updates 16 4 Mechanical Outline 17 4 1 Details Component Side A2100 A B 17 4 2 Details Solder Side A2100 A B 18 5 P...

Page 5: ...e Start 30 10 2 Proper Shutdown 30 10 3 SiRFawareTM Support 30 10 4 Push to Fix Mode 30 10 5 Hibernate Mode 31 10 6 Extended Ephemeris 31 10 7 Antenna Status Adaptation 32 10 7 1 Antenna Sensor 32 10...

Page 6: ...p of power while the module is running has risks ranging from minor impact on TTFF to fatal permanent corruption of flash memory code area While the A2100 A is a module designed for a 3 3V environment...

Page 7: ...port Small form factor of 15 24 mm x 15 24 mm 0 6 x 0 6 Supported temperature range 40 C to 85 C Single sided SMT component for reflow soldering Tape reel packaging The A2100 A and A2100 B receiver mo...

Page 8: ...de 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 instead of the A e g A2100 B40...

Page 9: ...ntennas 2 The calibrated clock of the receiver has not stopped thus it knows precise time to the s level 3 The receiver has estimates of time date position and valid almanac and ephemeris data 4 The r...

Page 10: ...he A2100 A module and A2100 B for the A2100 B module The xxx refers to the current firmware version on the module If no firmware version is referenced in an order the latest version will be provided 2...

Page 11: ...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...

Page 12: ...May 11 User s Manual Page 12 of 37 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...

Page 13: ...including one module A2100 A Table 3 Additional equipment A detailed description of the EVA2100 A Evaluation Kit can be found in the appropriate manual The evaluation boards are always shipped with l...

Page 14: ...ndatory NOTE 3 It is recommended to connect the nRST pin of the A2100 A to an open collector open drain output of a microprocessor 3 1 Minimum Configuration The following picture shows the minimum con...

Page 15: ...S232 level shifter Remarks Place C1 to C5 here 0 1 F close to MAX3232 For capacity values see datasheet of actual component used Use 3 3V level shifter MAX3232 or equivalent External antenna input imp...

Page 16: ...First Fix it is recommended to keep Vcc supplied at all times This will allow taking advantage of sophisticated low power mode features of the SiRFstarIV chip set More details can be found in chapter...

Page 17: ...11 User s Manual Page 17 of 37 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 6 All dimensions in mm inch Figure 7 Mechanical outline component side A...

Page 18: ...62 2 54 12 7 1 27 15 24 7 62 1 5 x 1 5 1 0 x 0 8 1 27 1 27 2 54 15 24 13 716 7 62 2 54 12 7 1 27 15 24 7 62 1 5 x 1 5 1 0 x 0 8 1 27 1 27 2 54 Solder pad size outer pads 1 0 x 0 8 Solder pad size inn...

Page 19: ...3V 22 N C 14 TM_GPIO5 OUT 1 8V 16 VANT IN 3 3 to 5VDC 15 4 WAKEUP OUT 3 3V 5 Vout OUT 1 8V TX0 SPI DO OUT 3 3V 21 I2C CLK OUT 1 8V 17 I2C DIO I O 1 8V 18 ON_OFF IN 3 3V 19 ExtInt IN 1 8V 20 12 13 14...

Page 20: ...leave open SPI chip select pin when module works in SPI mode 10 N C None Leave open 11 N C None Leave open 12 ANT Antenna Input Antenna signal Z 50 Ohm antenna input must not exceed 30dB gain includin...

Page 21: ...16 17 18 19 20 21 22 11 10 9 8 7 6 5 4 3 2 1 11 10 9 8 7 6 5 4 3 2 1 GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND 1 nRST IN 1 8V 2 BOOTSEL IN 1 8V 3 N C 6 GND 7 GND 8 GPIO6...

Page 22: ...ect pin when module works in SPI mode 10 N C None Leave open 11 N C None Leave open 12 ANT Antenna Input Antenna signal Z 50 Ohm antenna input must not exceed 30dB gain including cable loss 13 ANT_GND...

Page 23: ...lly includes tracking and the post acquisition portion of TTFF 6 2 Absolute Maximum Ratings Symbol Parameter Min Max Unit Vcc A2100 A Power supply 0 3 4 6 V Vcc A2100 B Power supply 0 3 2 2 V Vin Volt...

Page 24: ...or safe reset 0 2 V ON_OFF Vih 1 35 Vcc V Vil 0 3 0 45 V BOOTSEL Vih 1 35 2 2 V Table 9 PRELIMINARY DC electrical characteristic A2100 A Symbol Parameter Min Max Unit TX0 WAKEUP Voh 4mA 1 4 Vcc V Vol...

Page 25: ...le in convection or IR convection ovens are as follows according to IPC JEDEC J STD 020D Parameter Value Peak temperature RoHS compliant process 245 C Average ramp up rate to peak 217 C to Peak 3 C se...

Page 26: ...outed to the ground plane of the PCB the ground plane is on a lower PCB layer by vias as demonstrated in the drawing Figure 11 Antenna connector strip line A2100 A B In order to achieve the impedance...

Page 27: ...V1 2 May 11 User s Manual Page 27 of 37 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...

Page 28: ...nna specification Limitations Supply voltage voltage fed into VANT pin 5V max Supply current 50mA max Recommendations Gain 15dB should not exceed 20 dB including cable loss Noise figure 1 5dB The reco...

Page 29: ...ned according to EIA JEDEC standard JESD22 A113 B Level 3 Basic qualification tests MSL Classification according to J STD 020C MSL3 245 C MSL Rework Compatibility according to J STD 020C Temperature C...

Page 30: ...According messages either in NMEA or OSP mode The shutdown is completed after maximum 1s Therefore the module should be supplied with voltage for that time after the shutdown sequence was initiated 10...

Page 31: ...up again toggling the ON_OFF pin is necessary 100ms pulse width 10 6 Extended Ephemeris The receiver is capable of supporting two versions of using Extended Ephemeris EE data The first one is the ver...

Page 32: ...6mA 10 7 1 Antenna Sensor The following circuit is a proposal on how you can feed an antenna with 3 3V and provide an output for the ANTSTAT pin The value of the components may need an adaptation in t...

Page 33: ...s 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 application In any...

Page 34: ...50 mA Note Shortcut between ANT and GND may damage the A2100 A GPS receiver module This should be avoided by using an antenna current limiter The circuit chapter 10 7 2 Antenna Sensor with Current Li...

Page 35: ...rial port 0 therefore sending NMEA sentences or binary information and accepting commands At the same time it provides power to the module Accompanied by both an active and passive antenna it offers a...

Page 36: ...rther improvements are highly appreciated Maestro Wireless Solutions Limited Add Unit 3603 09 36 F 118 connuaught Road West HK Main Line 852 28690688 Fax 852 25254701 support gps maestro wireless com...

Page 37: ...ip line A2100 A B 26 Figure 12 Strip line parameters A2100 A B 26 Figure 13 Application note Antenna sensor adaptation 32 Figure 14 Application note Antenna sensor adaptation with current limiter 33 F...

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