Maestro A2035-H User manual

GPS Receiver A2035-H
A Description of Maestro’s
GPS Antenna Receiver Module A2035-H
User’s Manual
Version 1.4

V1.4 –Apr-13
User’s Manual
Page 2 of 34
Revision History
Rev.
Date
Description
0.1
07-05-11
First release
0.2
09-15-11
Updated Table 5: A2035-H electrical characteristics
1.0
11-11-11
Updated photo
1.1
03-01-12
Add Firmware Updates information
1.2
05-24-12
link to 1PPS application note and 1PPS timing accuracy re-
marks added
1.3
07-25-12
Add 5Hz Navigation Update Rate
1.4
04-01-13
Update I2C interface description
Add self-start description
mm-dd-yy
Name
Date
Signature
Written by
Happy wen
04-01-13
H W
Checked by
Sam Law, Matthieu
04-01-13
S L,M
Approval by
Frank Tang, Calvin Yau
04-01-13
F T,C Y

V1.4 –Apr-13
User’s Manual
Page 3 of 34
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 SUPPORTDEVICES
OR SYSTEMS WITHOUT THE EXPRESSWRITTEN APPROVAL OF MAESTRO.
THIS DOCUMENT MAY PROVIDE LINKS TO OTHER WORLD WIDE WEB SITES
OR RESOURCES. BECAUSE MAESTRO HAS NO CONTROL OVER SUCH SITES
AND RESOURCES, MAESTRO SHALL NOT BE RESPONSIBLE FOR THE
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ALLEGED TO BE CAUSED BY OR IN CONNECTION WITH USE OF OR
RELIANCE ON ANY SUCH CONTENT, GOODS OR SERVICES AVAILABLE ON
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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.

V1.4 –Apr-13
User’s Manual
Page 4 of 34
Table of Contents
1 Introduction ........................................................................................................6
1.1 Feature Overview..............................................................................................6
1.2 Characteristics Overview...................................................................................6
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 Receiver A2035-H ..................................................................................10
2.2 Packing...........................................................................................................10
2.3 Additional Equipment......................................................................................13
3 Quick Start........................................................................................................14
3.1 Minimum Configuration...................................................................................14
3.2 Antenna...........................................................................................................16
3.3 Serial Port Settings .........................................................................................16
3.4 Improved TTFF ...............................................................................................16
3.5 Firmware Updates (Flash-based module only)................................................16
3.5.1 Hardware Bootstrap.........................................................................................................16
3.5.2 OSP MID 148 Command................................................................................................17
3.5.3 NMEA MID 117 Command.............................................................................................17
3.6 Self-start Configuration....................................................................................18
4 Mechanical Outline ..........................................................................................19
4.1 Details Component Side A2035-H..................................................................19
4.2 Details Solder Side A2035-H...........................................................................20
5 Pin-out Information ..........................................................................................21
5.1 Layout A2035-H..............................................................................................21
5.2 Description A2035-H Signals ..........................................................................22
6 Electrical Characteristics................................................................................23
6.1 Operating Conditions ......................................................................................23
6.2 Absolute Maximum Ratings.............................................................................23
6.3 DC Electrical Characteristics...........................................................................24
7 Mounting...........................................................................................................25
7.1 Proposed Footprint for Soldering ....................................................................25
7.2 Recommended Profile for Reflow Soldering....................................................26
8 Quality and Reliability......................................................................................27
8.1 Environmental Conditions...............................................................................27
8.2 Product Qualification.......................................................................................27
8.3 Production Test...............................................................................................27

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9 Applications and Hints ....................................................................................28
9.1 Initial Module Start ..........................................................................................28
9.2 Proper Shutdown and Power-On-Reset (POR)...............................................28
9.3 SiRFawareTM Support .....................................................................................28
9.4 Push-to-Fix Mode............................................................................................28
9.5 Hibernate Mode...............................................................................................29
9.6 Extended Ephemeris.......................................................................................29
9.7 TM_GPIO5 pin (1 pulse per second pin).........................................................29
9.8 5 Hz Navigation Update Rate..........................................................................30
10 Evaluation Kit EVA2035-H .............................................................................31
11 Related Information .......................................................................................32
11.1 Contact..........................................................................................................32
11.2 Related Documents.......................................................................................32
11.3 Related Tools................................................................................................32
12 List of Figures ................................................................................................33
13 List of Tables..................................................................................................34

V1.4 –Apr-13
User’s Manual
Page 6 of 34
1 Introduction
Maestro’s GPS antenna receiver module A2035-H is a highly integrated GPS an-
tenna receiver module based on the technology of the GPS receiver module
A2100-A and a ceramic GPS patch antenna. The module is capable of receiving
signals from up to 48 GPS satellites and transferring them into position and timing
information that can be read over a serial port. Small size and high-end GPS func-
tionality are combined at low power consumption.
NOTE: Care must be taken to implement an orderly shut-down sequence along with
supplying power for a certain period of time after initiating the shut-down sequence.
Abrupt removal or drop of power while the module is running has risks ranging from
minor impact on TTFF to fatal, permanent corruption of flash memory code area
(Please refer to “Power ONOFF Sequences and Power-On-Reset (POR) on
A2100-AB Application Notes”)!
1.1 Feature Overview
The A2035-H is based on the well-established A1035-H outline and offer new, out-
standing 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
1.2 Characteristics Overview
The module’s most important characteristics are:
Operable at 3.3V / 24mA @ 1fix per second
UART interface at CMOS level
Small form factor of 30.48 x 16.51 mm²(1.2” x 0.65”)
Supported temperature range: -40°C to +85°C
Single-sided SMT component, for reflow soldering
RoHS compliant, lead-free
Tape & reel packaging
On-module patch antenna
The antenna receiver module is available as an off-the-shelf component, 100%
tested and shipped in tape-and-reel packaging.

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User’s Manual
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1.3 RoHS and Lead-Free Information
Maestro’s products marked with the lead-free symbol either on themodule 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, GPS antenna receiver module and telematics
units are RoHS compliant.

V1.4 –Apr-13
User’s Manual
Page 8 of 34
1.4 Label
The A2035-H label (size: 9.5 x9.5 mm²) contains the following information:
Figure 1: A2035-H 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.
Representing
Factory
Code
Product
Number
Software
Version
Software
Release
Hardware
Release
Assembly
Year/Week
Serial
Number
Number of
digits
(25)
XX
XXXXXXX
XXX
XX
XX
XXXX
XXXXXX
2
6
3
2
2
4
6
Example
GS
A2035H
410
01
01
1127
000005
Meaning
Given
Given
Given
Given
Given
Year=11
Week=27
Increment
from
000001
up to
999999
Example: GSA2035H41001011127000005

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User’s Manual
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1.5 Characteristics
The module is characterized by the following parameters.
1.5.1 GPS Characteristics
Channels
48, parallel tracking
Correlators
～400,000
Frequency
L1 (= 1,575 MHz)
Tracking Sensitivity
On-module antenna
-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 (1)
0.1 s
Hot start (2)
< 1 s
Warm (3)
< 32 s
Cold (4)
< 35 s
Table 1: A2035-H GPS characteristics
(1) The calibrated clock of the receiver has not stopped, thus it knows precise time (to the µs level).
(2) The receiver has estimates of time/date/position and valid almanac and ephemeris data.
(3) The receiver has estimates of time/date/position and recent almanac.
(4) 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
A2035-H Mechanical dimensions
Length
Width
Height
30.48±0.20 mm, 1.2±0.008”
16.51±0.20 mm, 0.65±0.008”
5.10 mm, 0.201”(Max)
A2035-H Weight
4.0 g, 0.14 oz
Table 2: A2035-H dimensions and weight
1.6 Handling Precautions
The GPS receiver module A2035-H is sensitive to electrostatic discharge (ESD).
Please handle with appropriate care.

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2 Ordering Information
2.1 GPS Receiver A2035-H
The order number is built as follows:
A2035-Hxxx
A2035-H for the A2035-H module. The “xxx” reflects the current firmware version. If
no firmware version is noted in an order, the latest version will be provided.
2.2 Packing
The A2035-H GPS modules come in a tape and reel package suitable for pick and
place machines.
Figure 2: A2035-H tape specifications (1)