Maestro A2200-A User manual

GPS Receivers A2200-A
A Description of Maestro’s
GPS Receiver Module A2200-A
User Manual
Version 1.0

V1.0 –Feb-12
User’s Manual
Page 2 of 35
Revision History
Rev.
Date
Description
0.1
07-11-11
First draft, based on A2200
1.0
12-12-11
Updated photo ,Pin out Information,Packing
mm-dd-yy
Name
Date
Signature
Written by
Happy wen
12-12-11
H W
Checked by
Sam Law, Wallace Lee
12-12-11
S L,W L
Approval by
Frank Tang, Calvin Yau
12-12-11
F T,C Y

V1.0 –Feb-12
User’s Manual
Page 3 of 35
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. HOWEVER, MAESTRO CAN NEITHER
ACCEPT LIABILITY FOR ANY INACCURACIES, OR THE CONSEQUENCES
THEREOF, NOR FOR ANY LIABILITY ARISING FROM THE USE OR
APPLICATION OF ANY CIRCUIT, PRODUCT, OR EXAMPLE SHOWN IN THE
DOCUMENT.
THE PRODUCT (HARD- AND SOFTWARE) DESCRIBED IN THIS
DOCUMENTATION IS NOT AUTHORIZED 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
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MAESTRO RESERVES THE RIGHT TO CHANGE, MODIFY, OR IMPROVE THIS
DOCUMENT OR THE PRODUCT DESCRIBED HEREIN, AS SEEN FIT BY
MAESTRO WITHOUT FURTHER NOTICE.

V1.0 –Feb-12
User’s Manual
Page 4 of 35
Table of Contents
1 Introduction........................................................................................................6
1.1 Feature Overview..............................................................................................6
1.2 Characteristics Overview ..................................................................................7
1.3 RoHS and Lead-Free Information.....................................................................7
1.4 Label.................................................................................................................8
1.5 Characteristics ..................................................................................................9
1.5.1 GPS Characteristics .................................................................................................9
1.5.2 Mechanical Characteristics.......................................................................................9
1.6 Handling Precautions........................................................................................9
2 Ordering Information .......................................................................................10
2.1 GPS Receivers A2200-A.................................................................................10
2.2 Packing of the A2200-A ..................................................................................10
2.3 Additional Equipment......................................................................................13
3 Quick Start........................................................................................................14
3.1 Minimum Configuration...................................................................................14
3.2 Antennas.........................................................................................................15
3.2.1 Passive Antennas...................................................................................................15
3.2.2 Active Antennas......................................................................................................15
3.3 Serial Port Settings .........................................................................................16
3.4 Improved TTFF ...............................................................................................16
4 Mechanical Outline ..........................................................................................17
4.1 Details Component Side A2200-A...................................................................17
4.2 Details Solder Side A2200-A...........................................................................18
5 Pin-out Information..........................................................................................19
5.1 Layout A2200-A ..............................................................................................19
5.2 Description A2200-A Signals ..........................................................................20
6 Electrical Characteristics................................................................................21
6.1 Operating Conditions ......................................................................................21
6.2 Absolute Maximum Ratings ............................................................................21
6.3 DC Electrical Characteristics...........................................................................22
7 Mounting...........................................................................................................23
7.1 Proposed Footprint for Soldering ....................................................................23
7.2 Recommended Profile for Reflow Soldering ...................................................23
8 Use of GPS Antennas ......................................................................................24
8.1 Connecting a GPS antenna to the GPS receiver ............................................24
8.2 Antenna Connections......................................................................................26
8.2.1 Passive Antennas...................................................................................................26
8.2.2 Active Antennas......................................................................................................26
9 Quality and Reliability......................................................................................27
9.1 Environmental Conditions...............................................................................27

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User’s Manual
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9.2 Product Qualification.......................................................................................27
9.3 Production Test...............................................................................................27
10 Applications and Hints ..................................................................................28
10.1 Initial Module Start ........................................................................................28
10.2 Proper Shutdown ..........................................................................................28
10.3 SiRFawareTM Support ...................................................................................28
10.4 Push-to-Fix Mode..........................................................................................28
10.5 Hibernate Mode.............................................................................................29
10.6 Extended Ephemeris.....................................................................................29
10.7 Antenna Status Adaptation ...........................................................................30
10.7.1 Antenna Sensor....................................................................................................30
10.7.2 Antenna Sensor with Current Limiter ....................................................................31
10.8 VANT Pin ......................................................................................................32
11 Evaluation Kit EVA2200-A.............................................................................33
12 Related Information .......................................................................................34
12.1 Contact..........................................................................................................34
12.2 Related Documents.......................................................................................34
12.3 Related Tools................................................................................................34
13 List of Figures ................................................................................................35
14 List of Tables..................................................................................................35

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User’s Manual
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1 Introduction
The GPS module A2200-A is Maestro’s first implementation of CSR’s SiRFstarIV
ROM chip on GPS module. This is 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.
The A2200-A is a module designed for a 3.3V environment.
1.1 Feature Overview
The A2200-A is new module with the following outstanding features.
Fast, responsive location experience
oHigh-sensitive navigation engine with tracking down to -163dBm
o48 track verification channels
oSBAS (WAAS, EGNOS, MSAS, GAGAN)
Breakthrough micro power technology
oRequires only 50 –500µA to maintain hot start capability
Active jammer remover
oRemoves in-band jammers up to 80dB/Hz
oTracks up to eight CW (continuous wave) jammers

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User’s Manual
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1.2 Characteristics Overview
The module’s most important characteristics are:
A2200-A
oOperable at 3.3V / 41mA @ 1 fix per second
oUART interface at 3.3V CMOS level
oPrepared for SPI Slave support at 3.3V CMOS
Direct passive antenna support
Switched antenna voltage for active antenna support
Small form factor of 10.2 mm x 14 mm (0.40” x 0.55”)
Supported temperature range: -40°C to +85°C
Single-sided SMT component, for reflow soldering
Tape & reel packaging
The A2200-A receiver module 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
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" (RoHS).
All Maestro GPS receiver modules, smart GPS antenna modules and telematics
units are RoHS compliant.

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1.4 Label
The A2200-A labels hold the following information:
Figure 1: A2200-A label
The label is placed on the shield of the module. The data matrix code holds the
product type, part number, software release, hardware release, factory code, year &
week of assembly and a 6-digit serial number.
Representing
Factory
code
Product
Number
Part
Number
Software
Release
Hardware
Release
Assembly
Year/Week
Serial
Number
Number of
digits
(25)
XX
XXXXXXX
XXXX
XX
XX
XXXX
XXXXXX
2
6
4
2
2
4
6
Example
GS
A2200A
9322
01
01
1126
000005
Meaning
GSL
Given
Given
Given
Given
Year=11
Week=26
Increment
from
000001
up to
999999
Example of MID#: GSA2200A932201011126000005

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User’s Manual
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1.5 Characteristics
The module are characterized by the following parameters.
1.5.1 GPS Characteristics
Channels
48, parallel tracking
Correlators
~ 400,000
Frequency
L1 (= 1,575 MHz)
Tracking Sensitivity (1)
-163 dBm
Horizontal Position Accuracy
Stand alone
< 2.5 m CEP (SA off)
Time To First Fix –TTFF
(theoretical minimum values;
values in real world may differ)
Obscuration recovery (2)
0.1 s
Hot start (3)
< 1 s
Warm (4)
< 35 s
Cold (5)
< 35 s
Table 1: A2200-A GPS characteristics
(1) Typical with good antenna –see also paragraph “3.2 Antennas”
(2) The calibrated clock of the receiver has not stopped, thus it knows precise time (to the µs level).
(3) The receiver has estimates of time/date/position and valid almanac and ephemeris data.
(4) The receiver has estimates of time/date/position and recent almanac.
(5) The receiver has no estimate of time/date/position, and no recent almanac.
Note: Performance (sensitivity and TTFF) might slightly decrease below -30°C.
1.5.2 Mechanical Characteristics
A2200-A Mechanical
dimensions
Length
Width
Height
14±0.20 mm, 0.55±0.008”
10.2±0.20 mm, 0.40±0.008”
2.5 mm, 0.1” (Max)
A2200-A Weight
0.6 g, 0.022 oz
Table 2: A2200-A dimensions and weight
1.6 Handling Precautions
The GPS receiver module A2200-A is sensitive to electrostatic discharge (ESD).
Please handle with appropriate care.

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User’s Manual
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2 Ordering Information
2.1 GPS Receivers A2200-A
The order number is built as follows:
A2200-Axxxx
A2200-A is the model name. The “xxxx” refers to the current part number on the
module.
2.2 Packing of the A2200-A
The A2200-A GPS module come in a tape and reel package suitable for pick and
place machines.
Figure 2: A2200-A tape specifications (1)