Gotop GT-1613-MTGN User manual

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 1 of 32
Revision: V2.0.1-January 2015
General Description
The Gotop GT-1613-MTGN is a complete
GPS&GLONASS engine module that features
super sensitivity, ultra low power and small form
factor. The GPS&GLONASS signal is applied to
the antenna input of module, and a complete
serial data message with position, velocity and
time information is presented at the serial
interface with NMEA protocol or custom
protocol.
Its –165dBm tracking sensitivity extends
positioning coverage into place like urban
canyons and dense foliage environment where
the GPS&GLONASS was not possible before.
The small form factor and low power
consumption make the module easy to integrate
into portable device like PNDs, mobile phones,
cameras and vehicle navigation systems.
Applications
LBS (Location Based Service)
PND (Portable Navigation Device)
Vehicle navigation system
Mobile phone
Figure: GT-1613-MTGN Top View
Features
Build on high performance, low-power
MediaTek MT3333 chip set
Ultra high Track sensitivity: -165dBm
Extremely fast TTFF at low signal level
Built in high gain LNA
Low power consumption: Max [email protected]
NMEA-0183 compliant protocol or custom
protocol
Operating voltage: 2.8V to 4.3V
Operating temperature range:-40to85℃
SMD type with stamp holes
Small form factor: 16x13x2.6mm
RoHS compliant (Lead-free)

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 2of 32
Revision: V2.0.1-January 2015
1 Description...................................................................................................................................................................... 3
1.1 General Description...............................................................................................................................................3
1.2. Key Features.........................................................................................................................................................4
1.3. Block Diagram..................................................................................................................................................... 5
1.4. Protocols Supported by the Module.....................................................................................................................5
2 Application...................................................................................................................................................................... 6
2.1. Pin Assignment.....................................................................................................................................................6
2.2. Pin Definition....................................................................................................................................................... 6
2.3. Power Supply....................................................................................................................................................... 8
2.4. Operating Modes................................................................................................................................................ 10
2.4.1. Full on Mode........................................................................................................................................... 10
2.4.2. Standby Mode..........................................................................................................................................11
2.4.3. Backup Mode.......................................................................................................................................... 11
2.4.4. Periodic Mode......................................................................................................................................... 13
2.4.5. AlwaysLocateTM Mode......................................................................................................................... 14
2.4.6. FLP Mode................................................................................................................................................15
2.5. UART Interface.................................................................................................................................................. 16
2.6. EASY Technology..............................................................................................................................................17
2.7. Multi-tone AIC................................................................................................................................................... 18
2.8. LOCUS...............................................................................................................................................................18
2.9. PPS VS. NMEA................................................................................................................................................. 19
3 Antenna Interfaces....................................................................................................................................................... 19
3.1. PCB Design Guide............................................................................................................................................. 19
3.2. External Active Antenna.................................................................................................................................... 20
4 Electrical, Reliability and Radio Characteristics......................................................................................................21
4.1. Absolute Maximum Ratings...............................................................................................................................21
4.2. Operating Conditions......................................................................................................................................... 21
4.3. Current Consumption......................................................................................................................................... 22
4.4. Electrostatic Discharge.......................................................................................................................................22
4.5. Reliability Test................................................................................................................................................... 23
5 Mechanical Dimensions............................................................................................................................................... 23
6 Manufacturing, Packaging and Ordering Information........................................................................................... 24
6.1. Assembly and Soldering.....................................................................................................................................24
6.2. Moisture Sensitivity........................................................................................................................................... 24
6.3. ESD Protection...................................................................................................................................................24
6.4. Tape and Reel Packaging................................................................................................................................... 25
7 Appendix References....................................................................................................................................................26
8 NMEA 0183 Protocol....................................................................................................................................................27

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 3of 32
Revision: V2.0.1-January 2015
1 Description
1.1 General Description
GOTOP GT-1613-MTGN GPS&GLONASS module embedded LNA brings high performance of MTK positioning
engine to the industrial applications. It is able to achieve the industry’s highest level of sensitivity, accuracy and TTFF
with the lowest power consumption in a small-footprint leadless package. With 66 search channels and 22
simultaneous tracking channels, it acquires and tracks satellites in the shortest time even at indoor signal level. The
embedded flash memory provides capacity for users to store some useful navigation data and allows for future
updates.
GT-1613-MTGN module combines many advanced features including EASY, AIC, LOCUS, AlwaysLocate™, FLP.
These features are beneficial to accelerate TTFF, improve sensitivity,save consumption. The module supports various
positioning,navigation and industrial applications. including autonomous GPS, GLONASS, SBAS (including WAAS,
EGNOS,MSAS, and GAGAN),QZSS, and AGNSS.
EASY technology as the key feature of GT-1613-MTGN is one kind of AGNSS. Capable collecting and processing
all internal aiding information like GPS&GLONASS time ，Ephemeris, Last Position,etc.,the GPS&GLONASS
module delivers a very short TTFF in either Hot or Warm start.
GT-1613-MTGN module is a SMD type module with the compact 16mm×13mm×2.6mm form factor. It can be
through the 36-pin pads embedded in your applications. It provides necessary hardware interfaces for connection with
the main PCB.
Made of lead-free technology, conforms to the RoHS standard, Single patch, two times more rapid application of
SMT scheme.

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 4of 32
Revision: V2.0.1-January 2015
1.2. Key Features
Table 1: Key Features
Parameter
Specification
Power Supply
•Supply voltage: 2.8V~4.3V Typical: 3.3V
Power Consumption
•Acquisition: 45mA @VCC=V_BCKP=3.3V
•Tracking: 40mA @VCC=V_BCKP=3.3V
•Standby: 2.0mA @VCC=V_BCKP=3.3V
•Backup: 20uA @V_BCKP=3.3V
Receiver Type
•Code 66 search channels, 22 synchronous tracking channels
•GPS&&QZSS L1 1575.42MHz C/A , GLONASS L1OF 1602MHz
SBAS: WAAS, EGNOS, MSAS, GAGAN
Sensitivity
•Tracking: -165dBm
•Re-acquisition: -156dBm
•Acquisition: -148dBm
TTFF (EASY enabled)
•Cold start: 15s typ @-130dBm
•Warm start: 5s typ @-130dBm
•Hot start : 1s typ @-130dBm
TTFF (EASY disabled)
•Cold start(Autonomous): 35s typ @-130dBm
•Warm start (Autonomous): 30s typ @-130dBm
•Hot start (Autonomous): 1s typ @-130dBm
Horizontal Position
Accuracy (Autonomous)
•<2.5m CEP @-130 dBm
Max Update Rate
•Up to 10Hz,1Hz by fault
Accuracy of 1PPS Signal
•Typical accuracy: ±10ns
•Time pulse width 100ms
Acceleration Accuracy
•Without aid: 0.1m/s²
Dynamic Performance
•Maximum altitude: 18,000m
•Maximum velocity: 515m/s
•Acceleration: 4G
UART Port
•UART Port: TXA and RXA
•Supports baud rate from 4800bps to 115200bps, 9600bps by
default
•UART port is used for NMEA output, MTK proprietary
commands input and firmware upgrade
Temperature Range
•Normal operation: -40°C ~ +85°C
•Storage temperature: -45°C ~ +125°C
Physical Characteristics
•Size: 16±0.15 ×13±0.15 ×2.6±0.1mm
•Weight: Approx. 0.92g

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 5of 32
Revision: V2.0.1-January 2015
1.3. Block Diagram
The following figure shows a block diagram of GT-1613-MTGN module. It consists of a single chip GNSS IC
which includes the RF part and Baseband part, a LNA, a SAW filter, a TCXO, a crystal oscillator.
Figure 1: Block Diagram
1.4. Protocols Supported by the Module
Table 2: Protocols Supported by the Module
Protocol
Type
NMEA
Output, ASCII, 0183, 3.01
PMTK
Input, MTK proprietary protocol

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 6of 32
Revision: V2.0.1-January 2015
2 Application
The module is equipped with a 36-pin SMT pad that connects to your application platform. Sub-interfaces included
in the pad are described in details in the following chapters.
2.1. Pin Assignment
Figure 2: Pin Assignment
2.2. Pin Definition
Power Supply
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
VCC
11
I
Main power supply
Vmax=4.3V
Vmin=2.8V
Vnom=3.3V
Supply current not less than
100mA.
VBAT
5
I
Backup power supply
Vmax=4.3V
Vmin=1.5V
Vnom=3.3V
Supply power for RTC
domain. The VBAT pin can
be directly supplied power by
battery or connect it to VCC.
GND
2.3.4.6.8.9.
10.12.14.1
5.17.19.21.
22.23.24.2
6.28.29.33.
35.36
G
Ground.
Assure a good GND connection
to all GND pins of the module,
preferably with a large ground
plane.

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 7of 32
Revision: V2.0.1-January 2015
Other Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
1PPS
20
O
One pulse
per second
VOLmin=-0.3V
VOLmax=0.4V
VOHmin=2.4V
VOHmax=3.1V
Synchronized at rising
edge, the pulse width
is100ms. If unused, keep
this pin open.
RF Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RF_IN
1
I
External active
antenna RF input
Vnom=3.3V
Characteristic impedance of
50Ω
UART Port
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RXA
31
I
Receive data
VILmin=-0.3V
VILmax=0.8V
VIHmin=2.0V
VIHmax=3.6V
TXA
30
O
Transmit data
VOLmin=-0.3V
VOLmax=0.4V
VOHmin=2.4V
VOHmax=3.1V
RXB
32
I
Receive data
VILmin=-0.3V
VILmax=0.8V
VIHmin=2.0V
VIHmax=3.6V
If not used, this pin is left vacant.
TXB
34
O
Transmit data
VOLmin=-0.3V
VOLmax=0.4V
VOHmin=2.4V
VOHmax=3.1V
If not used, this pin is left vacant.
Reset
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RESET
13
I
System reset
VILmin=-0.3V
VILmax=0.8V
VIHmin=2.0V
VIHmax=3.6V
Low level active. If unused,
keep this pin open or connect it
to VCC.

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 8of 32
Revision: V2.0.1-January 2015
2.3. Power Supply
VCC pin supplies power for BB, RF, I/O, LNA, short protection and antenna detection circuit. The load current of
VCC varies according to the VCC level, processor load, the number of tracked satellites and the rate of satellite
re-acquisition. Using external active antenna will consume additional 11mA from our module. So it is important to
supply sufficient current and make the power clean and stable. VCC supply ripple voltage should meet the
requirement: 54mV (RMS) max @f=0 …3MHz and 15mV (RMS) max@f >3MHz. You should choose the LDO
without built-in output high-speed discharge function to keep long output voltage drop-down period. The decouple
combination of 10uF and 100nF capacitor is recommended nearby VCC pin.
The VBAT pin supplies power for RTC domain. It should be valid when power on the module. The voltage of
RTC domain ranges from 1.5V to 4.3V. In order to achieve a better TTFF, RTC domain should be valid all the time. It
can supply power for SRAM memory in RTC domain which contains all the necessary GPS&GLONASS information
for quick start-up and a small amount of user configuration variables.
The module's internal power construction is shown as below.
VCC supplies power for PMU, and VBAT supplies power for RTC domain. TIMER signal highlighted in red in
the following figure belongs to RTC domain and can be used to control the power switch on/off.
Figure 3: Internal Power Construction
Power supply solutions for GT-1613-MTGN module are listed as the following.
The simplest power circuit for GT-1613-MTGN module is 3.3V power source connected to VCC pin and VBAT
pin of the module directly. In this case, once you powered on the module, the full cold start will be implemented.

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 9of 32
Revision: V2.0.1-January 2015
Figure 4: Reference Circuit for Power Supply
If your power supply circuit adopts the design mentioned above , GT-1613-MTGN module does not support
EASY technology and backup mode as well as other modes related to it,e.g. AlwaysLocate™backup mode.
The other way is feeding VBAT through a backup battery directly. The module will enter into backup mode when
power source (3.3V) is cut off. Furthermore,it is necessary to add an external charging circuit.for rechargeable battery.
The detailed schematic (mount R2 with 0R to replace Power switch) is shown as there is no charge source when
power source (3.3V) is cut off. MS621FE FL11E from Seiko is recommended. The consumption of VBAT is as low as
20uA in backup mode.
The schematic with power supply circuit is shown as below. As power source (3.3V) is always valid and the
battery is charged continuously, the capacity of the battery can be small. The detailed schematic for power switch
circuit is shown in Figure 5.
For more details about backup mode, periodic backup mode and AlwaysLocate™backup mode, please refer to the
related chapters.
Figure 5: Reference Charging Circuit for Chargeable Battery

GT-1613-MTGN
GPS&GLONASS Receiver Module
www.gotop-zzu.com
Page 10 of 32
Revision: V2.0.1-January 2015
VCC does not supply power for RTC domain in GT-1613-MTGN module, so the VBAT pin must be powered
externally. Furthermore, it is strongly recommended to supply power to VBAT through a backup battery, which can
ensure GT-1613-MTGN module supports EASY technology and improves TTFF after next restart. For details about
TTFF, please refer to chapter 1.2.
2.4. Operating Modes
The table below briefly illustrates the relationship among different operating modes of GT-1613-MTGN module.
Table 3: Module States Switch
2.4.1. Full on Mode
Full on mode includes tracking mode and acquisition mode. Acquisition mode is defined as the module starts to
search satellites, determine visible satellites and coarse carrier frequency as well as code phase of satellite signals.
When the acquisition is completed, it switches to tracking mode automatically. Tracking mode is defined as the
module keeps tracking satellites and demodulates the navigation data from the specific satellites.
When the combination of VCC and VBAT is valid, the module will enter into full on mode automatically and
follow the default configurations as below. You can refer to chapter 2.3 about internal power construction to have a
good comprehension. You can also use PMTK commands to change the configurations to satisfy your requirements.
Current
Mode
Next Mode
Backup
Standby
Full on
Periodic
AlwaysLocate
FLP
Backup
N/A
N/A
Refer to
chapter 2.4.3
N/A
N/A
N/A
Standby
N/A
N/A
Send any data
via UART
N/A
N/A
N/A
Full on
Refer to
chapter 2.4.3
PMTK161
N/A
PMTK225
PMTK225
PMTK262
Periodic
N/A
N/A
Refer to
chapter 2.4.4
N/A
N/A
N/A
Always
Locate
N/A
N/A
Refer to
chapter 2.4.5
N/A
N/A
N/A
FLP
N/A
N/A
Refer to
chapter 2.4.6
N/A
N/A
N/A