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LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
1
Product name
Description
Version
MC-1513
Datasheet of MC-1513 GPS module
1.4
Introduction
Locosys GPS MC-1513 module features high sensitivity, low power and ultra small form factor. This
GPS module is powered by MediaTek, it can provide you with superior sensitivity and performance even in
urban canyon and dense foliage environment. The miniature size makes the module easy and the best choice
to integrate into portable device like mobile phone, PDAs, camera and vehicle locators.
This module supports hybrid ephemeris prediction to achieve faster cold start. One is self-generated
ephemeris prediction that is no need of both network assistance and host CPU’s intervention. This is valid for
up to 3 days and updates automatically from time to time when GPS module is powered on and satellites are
available. The other is server-generated ephemeris prediction that gets from an internet server. This is valid
for up to 14 days. Both ephemeris predictions are stored in the on-board flash memory and perform a cold
start time less than 15 seconds.
2
Features
3
MediaTek high sensitivity solution
Support 66-channel GPS
Ultra low power consumption
Fast TTFF at low signal level
Built-in 12 multi-tone active interference canceller
Free hybrid ephemeris prediction to achieve faster cold start
Built-in data logger
Built-in DC/DC converter to save power
Up to 10 Hz update rate
±11ns high accuracy time pulse (1PPS)
Capable of SBAS (WAAS, EGNOS, MSAS, GAGAN)
Support Japan QZSS
Indoor and outdoor multi-path detection and compensation
Small form factor 15 x 13 x 2.2 mm
SMD type with stamp holes; RoHS compliant
Application
Personal positioning and navigation
Automotive navigation
Marine navigation
Page 1/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Fig 3-1 System block diagram.
Fig 3-2 Typical application circuit that uses passive antenna.
Page 2/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Fig 3-3 Typical application circuit that uses active antenna.
GPS active
antenna
3.3V
VCC
RX
TX
Micro processor
OUT
GND
1M
1
2
3
4
5
21
6
7
8
9
10
RXB
TXB
1PPS
TXA
RXA
GND
NC
GPIO6
/MR
TIMER
DR_IN
20
GND
19
RFIN
18
GND
17
VOUT
16
NC
22
GND
15
GPIO9
14
GPIO10
13
GPIO11
12
VIN
11
VBACKUP
Impedance 50 ohm
Ferrite bead
4
MC-1513
3
Single cell
Li-Ion battery
VIN
VOUT
CE
GND
1
2
XC8102
Fig 3-4 Typical application circuit that directly uses a Li-Ion battery as power source to save power.
Page 3/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
4
GPS receiver
Chip
MediaTek MT3339
Frequency
L1 1575.42MHz, C/A code
Channels
Support 66 channels
Update rate
1Hz default, up to 10Hz
Sensitivity
Acquisition Time
Tracking
-161dBm, up to -165dBm (with external LNA)
Cold start
-142.5dBm, up to -148dBm (with external LNA)
Hot start (Open Sky)
< 1s (typical)
Hot start (Indoor)
< 30s
32s (typical) without AGPS
Cold Start (Open Sky)
< 15s (typical) with AGPS (hybrid ephemeris prediction)
Position Accuracy
5
Autonomous
3m (2D RMS).
SBAS
2.5m (depends on accuracy of correction data).
Max. Altitude
< 50,000 m
Max. Velocity
< 515 m/s
Protocol Support
NMEA 0183 ver 3.01
9600 bps, 8 data bits, no parity, 1 stop bits (default)
1Hz: GGA, GLL, GSA, GSV, RMC, VTG
Software interface
5.1 NMEA output message
Table 5.1-1 NMEA output message
NMEA record
Description
GGA
Global positioning system fixed data
GLL
Geographic position - latitude/longitude
GSA
GNSS DOP and active satellites
GSV
GNSS satellites in view
RMC
Recommended minimum specific GNSS data
VTG
Course over ground and ground speed
GGA--- Global Positioning System Fixed Data
Table 5.1-2 contains the values for the following example:
$GPGGA,053740.000,2503.6319,N,12136.0099,E,1,08,1.1,63.8,M,15.2,M,,0000*64
Table5.1- 2 GGA Data Format
Name
Example
Units
Description
Message ID
$GPGGA
GGA protocol header
UTC Time
053740.000
hhmmss.sss
Page 4/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Latitude
2503.6319
ddmm.mmmm
N/S indicator
N
N=north or S=south
Longitude
12136.0099
dddmm.mmmm
E/W Indicator
E
E=east or W=west
Position Fix Indicator
1
See Table 5.1-3
Satellites Used
08
Range 0 to 12
HDOP
1.1
Horizontal Dilution of Precision
MSL Altitude
63.8
mters
Units
M
mters
Geoid Separation
15.2
mters
Units
M
mters
Age of Diff. Corr.
second
Diff. Ref. Station ID
0000
Checksum
*64
<CR> <LF>
Null fields when DGPS is not used
End of message termination
Table 5.1-3 Position Fix Indicators
Value
Description
0
Fix not available or invalid
1
GPS SPS Mode, fix valid
2
Differential GPS, SPS Mode, fix valid
3-5
Not supported
6
Dead Reckoning Mode, fix valid
GLL--- Geographic Position – Latitude/Longitude
Table 5.1-4 contains the values for the following example:
$GPGLL,2503.6319,N,12136.0099,E,053740.000,A,A*52
Table 5.1-4 GLL Data Format
Name
Example
Units
Description
Message ID
$GPGLL
GLL protocol header
Latitude
2503.6319
ddmm.mmmm
N/S indicator
N
N=north or S=south
Longitude
12136.0099
dddmm.mmmm
E/W indicator
E
E=east or W=west
UTC Time
053740.000
hhmmss.sss
Status
A
A=data valid or V=data not valid
Mode
A
A=autonomous, D=DGPS, E=DR, N=Data not valid,
Page 5/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
R=Coarse Position, S=Simulator
Checksum
*52
<CR> <LF>
End of message termination
GSA---GNSS DOP and Active Satellites
Table 5.1-5 contains the values for the following example:
$GPGSA,A,3,24,07,17,11,28,08,20,04,,,,,2.0,1.1,1.7*35
Table 5.1-5 GSA Data Format
Name
Example
Units
Description
Message ID
$GPGSA
GSA protocol header
Mode 1
A
See Table 5.1-6
Mode 2
3
See Table 5.1-7
ID of satellite used
24
Sv on Channel 1
ID of satellite used
07
Sv on Channel 2
….
….
ID of satellite used
Sv on Channel 12
PDOP
2.0
Position Dilution of Precision
HDOP
1.1
Horizontal Dilution of Precision
VDOP
1.7
Vertical Dilution of Precision
Checksum
*35
<CR> <LF>
End of message termination
Table 5.1-6 Mode 1
Value
Description
M
Manual- forced to operate in 2D or 3D mode
A
Automatic-allowed to automatically switch 2D/3D
Table 5.1-7 Mode 2
Value
Description
1
Fix not available
2
2D
3
3D
GSV---GNSS Satellites in View
Table 5.1-8 contains the values for the following example:
$GPGSV,3,1,12,28,81,285,42,24,67,302,46,31,54,354,,20,51,077,46*73
$GPGSV,3,2,12,17,41,328,45,07,32,315,45,04,31,250,40,11,25,046,41*75
$GPGSV,3,3,12,08,22,214,38,27,08,190,16,19,05,092,33,23,04,127,*7B
Table 5.1-8 GSV Data Format
Page 6/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Name
Example
Message ID
Units
Description
$GPGSV
GSV protocol header
Total number of messages
3
Range 1 to 3
Message number1
1
Range 1 to 3
Satellites in view
12
Satellite ID
28
Elevation
81
degrees
Channel 1 (Range 00 to 90)
Azimuth
285
degrees
Channel 1 (Range 000 to 359)
SNR (C/No)
42
dB-Hz
Channel 1 (Range 00 to 99, null when not tracking)
Satellite ID
20
Elevation
51
degrees
Channel 4 (Range 00 to 90)
Azimuth
077
degrees
Channel 4 (Range 000 to 359)
SNR (C/No)
46
dB-Hz
Channel 4 (Range 00 to 99, null when not tracking)
Checksum
*73
1
Channel 1 (Range 01 to 196)
Channel 4 (Range 01 to 196)
<CR> <LF>
End of message termination
1. Depending on the number of satellites tracked multiple messages of GSV data may be required.
RMC---Recommended Minimum Specific GNSS Data
Table 5.1-9 contains the values for the following example:
$GPRMC,053740.000,A,2503.6319,N,12136.0099,E,2.69,79.65,100106,,,A*53
Table 5.1-9 RMC Data Format
Name
Example
Units
Description
Message ID
$GPRMC
RMC protocol header
UTC Time
053740.000
hhmmss.sss
Status
A
A=data valid or V=data not valid
Latitude
2503.6319
ddmm.mmmm
N/S Indicator
N
N=north or S=south
Longitude
12136.0099
dddmm.mmmm
E/W Indicator
E
E=east or W=west
Speed over ground
2.69
knots
Course over ground
79.65
degrees
Date
100106
True
ddmmyy
degrees
Magnetic variation
Variation sense
E=east or W=west (Not shown)
Mode
A
Checksum
*53
A=autonomous, D=DGPS, E=DR, N=Data not valid,
R=Coarse Position, S=Simulator
Page 7/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
<CR> <LF>
End of message termination
VTG---Course Over Ground and Ground Speed
Table 5.1-10 contains the values for the following example:
$GPVTG,79.65,T,,M,2.69,N,5.0,K,A*38
Table 5.1-10 VTG Data Format
Name
Example
Message ID
$GPVTG
Course over ground
79.65
Reference
T
Units
VTG protocol header
degrees
Reference
M
Speed over ground
2.69
Units
N
Speed over ground
5.0
Units
K
Mode
A
Checksum
*38
Measured heading
True
degrees
Course over ground
Description
Measured heading
Magnetic
knots
Measured speed
Knots
km/hr
Measured speed
Kilometer per hour
A=autonomous, D=DGPS, E=DR, N=Data not valid,
R=Coarse Position, S=Simulator
<CR> <LF>
End of message termination
5.2 Proprietary NMEA input/output message
Please refer to MTK proprietary message.
5.3 Examples to configure the power mode of GPS module
The GPS module supports different power modes that user can configure by issuing
software commands.
5.3.1 Standby mode
User can issue software command to make GPS module go into standby mode that
consumes less than 200uA current. GPS module will be awaked when receiving any byte.
The following flow chart is an example to make GPS module go into standby mode and
then wake up.
Page 8/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Start
GPS module is powered on
and in normal operation mode
Change GPS to
standby mode
Wake up
GPS module
unsigned char StandbyMode[] = {"$PMTK161,0*28\x0D\x0A"};
Yes
Issue any byte to
wake up GPS module
No
GPS module will return {"$PMTK010,002*2D\x0D\x0A"}
and start normal operation.
End
5.3.2 Periodic mode
When GPS module is commanded to periodic mode, it will be in operation and
standby periodically. Its status of power consumption is as below chart.
The following flow chart is an example to make GPS module go into periodic mode
Page 9/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
and then back to normal operation mode.
Start
GPS module is powered on
Change GPS to periodic mode with
3000ms on and 12000ms standby
if position fix is available, otherwise
(18000, 72000) ms will be applied.
unsigned char PeriodicMode[] =
{"$PMTK225,2,3000,12000,18000,72000*15\x0D\x0A"};
Note: minimum on time is 2000ms.
maximum standby time is 518400000ms (6 days)
GPS module will return message
"$PMTK001,225,3*35\x0D\x0A"
if command is accepted.
Set GPS to normal
operation mode?
Yes
GPS is in
standby now
Yes
Issue any byte to GPS
and wait it awake
No
No
Issue command of
normal operation mode
unsigned char NormalMode[] =
{"$PMTK225,0*2B\x0D\x0A"};
GPS module will return message
"$PMTK001,225,3*35\x0D\x0A"
if command is accepted.
End
GPS is in periodic mode
End
GPS is in normal mode
5.3.3 AlwaysLocateTM mode
AlwaysLocateTM is an intelligent controller of periodic mode. Depending on the
environment and motion conditions, GPS module can adaptively adjust working/standby
time to achieve balance of positioning accuracy and power consumption. In this mode, the
host CPU does not need to control GPS module until the host CPU needs the GPS position
data. The following flow chart is an example to make GPS module go into
AlwaysLocateTm mode and then back to normal operation mode.
Page 10/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Note: AlwaysLocateTM is a trade mark of MTK.
Start
GPS module is powered on
Change GPS to
AlwaysLocate mode
unsigned char AlwaysLocateMode[] =
{"$PMTK225,8*23\x0D\x0A"};
Yes
GPS module will return message
"$PMTK001,225,3*35\x0D\x0A"
if command is accepted.
Request a GPS
position data
No
Yes
Issue any byte to get
GPS position data
No
Set GPS to normal
operation mode?
Change GPS back to
AlwaysLocate mode
Yes
Issue any byte to GPS
and wait it awake
No
Set GPS to normal
operation mode
unsigned char NormalMode[] =
{"$PMTK225,0*2B\x0D\x0A"};
End
GPS is in normal mode
5.4 Data logger
The GPS module has internal flash memory for logging GPS data. The configurations
Page 11/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
include time interval, distance, speed, logging mode, and … etc. For more information, please
contact us.
5.5 Examples to configure the update rate of GPS module
The GPS module supports up to 10Hz update rate that user can configure by issuing
software commands. Note that the configurations by software commands are stored in the
battery-backed SRAM that is powered through VBACKUP pin. Once it drains out, the
default/factory settings will be applied.
Due to the transmitting capacity per second of the current baud rate, GPS module has to be
changed to higher baud rate for high update rate of position fix. The user can use the following
software commands to change baud rate.
Baud rate
Software command
Factory default
$PMTK251,0*28<CR><LF>
4800
$PMTK251,4800*14<CR><LF>
9600
$PMTK251,9600*17<CR><LF>
19200
$PMTK251,19200*22<CR><LF>
38400
$PMTK251,38400*27<CR><LF>
57600
$PMTK251,57600*2C<CR><LF>
115200
$PMTK251,115200*1F<CR><LF>
Note: <CR> means Carriage Return, i.e. 0x0D in hexadecimal. <LF> means Line Feed, i.e. 0x0A in
hexadecimal.
If the user does not want to change baud rate, you can reduce the output NMEA sentences
by the following software commands.
NMEA sentence
Software command
Factory default
$PMTK314,-1*04<CR><LF>
Only GLL at 1Hz
$PMTK314,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29<CR><LF>
Only RMC at 1Hz
$PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29<CR><LF>
Only VTG at 1Hz
$PMTK314,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29<CR><LF>
Only GGA at 1Hz
$PMTK314,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29<CR><LF>
Only GSA at 1Hz
$PMTK314,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29<CR><LF>
Only GSV at 1Hz
$PMTK314,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0*29<CR><LF>
Only ZDA at 1Hz
$PMTK314,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0*29<CR><LF>
RMC, GGA, GSA
at 1Hz and GSV at $PMTK314,0,1,0,1,1,5,0,0,0,0,0,0,0,0,0,0,0,0,0*2C<CR><LF>
0.2Hz
If the command is correct and executed, GPS module will output message
Page 12/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
$PMTK001,314,3*36<CR><LF>
After the GPS module is changed to higher baud rate or reduced NMEA sentence, the user
can configure it to high update rate of position fix by the following commands.
Interval of position fix
Software command
(1)
Every 100ms (10Hz)
$PMTK220,100*2F<CR><LF>
Every 200ms (5Hz)
$PMTK220,200*2C<CR><LF>
Every 500ms (2Hz)
$PMTK220,500*2B<CR><LF>
Every 1000ms (1Hz)
$PMTK220,1000*1F<CR><LF>
(2)
Every 2000ms (0.5Hz)
$PMTK220,2000*1C<CR><LF>
If the command is correct and executed, GPS module will
output message $PMTK001,220,3*30<CR><LF>
Note 1: The minimum interval of position fix is 100ms, i.e. the maximum update rate is 10Hz.
Note 2: The current consumption is the same with the update rate of 1Hz.
6
Pin assignment and descriptions
Table 6-1 Pin descriptions
Pin # Name
Type Description
1
RXB
I
Serial input for channel B
2
TXB
O
Serial output for channel B
3
1PPS
O
Pulse per second (default 100 ms pulse/sec when 3D fix is
available)
Note
Page 13/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
4
TXA
O
Serial output for channel A (Default NMEA)
5
RXA
I
Serial input for channel A (Default NMEA)
6
NC
Not connect
GPIO6
I/O
General purpose I/O (Default status indicator. When GPS
position fix is available, it outputs 50ms high per second,
otherwise it outputs low.)
7
8
/MR
I
Manual reset input pin.
Active at “L” input. Internal pulled up via a resistor. If /MR
pin is not necessary, open this node.
9
TIMER
OD
Open drain. Wake up other device from RTC.
10
DR_IN
I
Wakeup signal input from such a G sensor
11
VBACKUP P
Backup battery supply voltage
This pin must be powered to enable the module.
12
VIN
P
DC supply voltage
13
GPIO11
I/O
General purpose I/O
14
GPIO10
I/O
General purpose I/O
15
GPIO9
I/O
General purpose I/O
16
NC
17
VOUT
P
Linear regulator power output, 2.85V (Do not use this as
power source of backup battery)
18
GND
P
Ground
19
RFIN
I
GPS RF signal input
20
GND
P
Ground
21
GND
P
Ground
22
GND
P
Ground
Not connect
Page 14/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
7
DC & Temperature characteristics
7.1 Absolute maximum ratings
Parameter
Symbol
Ratings
Units
VIN
4.3
V
VBACKUP
4.3
V
2.85V Output Current
Iout
50
Operating Temperature Range
Topr
-40 ~ 85
mA
℃
Storage Temperature Range
Tstg
-40 ~ 85
℃
Input Voltage
Input Backup Battery Voltage
7.2 DC Electrical characteristics
Parameter
Max.
Units
3.0
4.3
V
Input Backup Battery Voltage VBACKUP
2.0
4.3
V
2.85V Output Voltage
2.7
2.9
V
66
Input Voltage
Symbol
Conditions
Min.
VIN
Iout = 0
VOUT
Typ.
2.8
VIN = 3.3V,
Supply Current
Iss
Iout = 0,
Peak
Acquisition
Tracking
14
12(1)
mA
mA
mA
Standby
150
uA
6
uA
Backup Battery Current
Ibat
VIN = 0V
2.85V Output Current
Iout
VIN = 3.3V
High Level Input Voltage
VI H
Low Level Input Voltage
VI L
High Level Input Current
IIH
Low Level Input Current
IIL
High Level Output Voltage
VOH
Low Level Output Voltage
VOL
High Level Output Current
IOH
2
mA
Low Level Output Current
IOL
2
mA
Minimum Pulse Width
TMPW
30
mA
2.0
3.6
V
-0.3
0.8
V
no pull-up or down
-1
1
uA
no pull-up or down
-1
1
uA
2.4
V
0.4
For /MR pin
1
V
mS
Note 1. Measured when position fix (1Hz) is available, input voltage is 3.3V and the function of self-generated
ephemeris prediction is inactive. For different input voltage, the current consumption is as below chart. This is
because MC-1513 is built-in DC/DC converter.
Page 15/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Input voltage (VIN) vs. current (Iss)
13
Current (mA)
12
11
10
9
3.0 V
3.3 V
3.6 V
3.9 V
4.3 V
Input voltage (V)
7.3 Temperature characteristics
Parameter
Symbol
Min.
Typ.
Max.
Operating Temperature
Topr
-40
-
85
Units
℃
Storage Temperature
Tstg
-40
25
85
℃
Page 16/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
8
Mechanical specification
8.1 Outline dimensions
8.2 Recommended land pattern dimensions
Page 17/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
9
Reel Packing information
Page 18/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Document change list
Revision 1.0
First release on Oct. 19, 2007.
Revision 1.0 to Revision 1.1 (June 19, 2009)
Changed GPS chip from MT3318 to MT3329 on page 4. The units with date code after 0924
will be changed to new chip.
Added “Support AGPS” on page 1.
Added Fig 3-4 on page 4.
Changed channels from 32 to 66 on page 5.
Changed update rate from “up to 5Hz” to “up to 10Hz” on page 5.
Changed tracking sensitivity from “-157.5dBm, up to -159dBm” to “-164dBm, up to -165dBm”
on page 5.
Changed cold start sensitivity from “-144.5dBm, up to -146dBm” to “-147dBm, up to
-148dBm” on page 5.
Changed hot start time from “2s (typical)” to “<2s (typical)” on page 5.
Changed cold start time from 36s to 35s on page 5.
Changed pin number 9 from GPIO1 to NC on page 9.
Changed pin number 13 from GPIO3 to VDD_USB on page 9.
Changed pin number 14 from GPIO4 to USB_DM on page 9.
Changed pin number 15 from GPIO5 to USB_DP on page 9.
Changed absolute maximum Input Voltage from 6.5V to 4.3V on page 11
Changed absolute maximum Input Battery Backup Voltage from 7V to 4.3V on page 11
Changed Input Battery Backup Voltage from “1.1V~6.0V” to “2.0V~4.3V” on page 11
Changed 2.85V Output Voltage from “2.79V~2.91V” to “2.7V~2.9V” on page 11
Changed Battery Backup Current from 2.8uA to 5uA on page 11
Changed the peak supply current from 71mA to 56mA on page 11.
Changed typical acquisition current from 56mA to 32mA on page 11.
Changed typical tracking current from 40mA to 28mA on page 11.
Revision 1.1 to Revision 1.2 (April 11, 2011)
Upgraded GPS firmware to version AXN1.5.
Changed cold start time from 35s to 33s on page 5.
Added “< 15s (typical) with AGPS (Long Term Orbit)” on page 5.
Revised tracking current from 28mA to 26mA on page 11
Revision 1.2 to Revision 1.3 (November 24, 2011)
Changed GPS chip from MT3329 to MT3339 on page 5. The units with a capital T after the
date code on the metal shield have been changed to new chip.
Added the description of hybrid ephemeris prediction in section 1.
Page 19/20
© 2006 LOCOSYS Technology Inc.
LOCOSYS Technology Inc.
20F.-13, No.79, Sec. 1, Xintai 5th Rd.,
Xizhi City, Taipei County 221, Taiwan
℡ 886-2-8698-3698
886-2-8698-3699
www.locosystech.com/
Added several new features in section 2.
Changed Fig 3-1, Fig 3-2, Fig 3-3 and Fig 3-4
Removed Fig 3-5
Changed tracking sensitivity from -164dBm to -161dBm on page 4
Changed Cold sensitivity from -147dBm to -142.5dBm on page 4
Changed hot start time from < 2s to < 1s on page 4.
Changed cold start time from 33s to 32s on page 4.
Changed Max. Altitude from 18,000m to 50,000m on page 4.
Changed the range of satellite ID in GSV message from 32 to 196 on page 7.
Added “N = data not valid, R=Coarse Position, S=Simulator” in GLL, RMC and VTG message.
Added section 5.3 and 5.4
Changed the definition of pin 6 to NC in the Table 6-1.
Changed the name of pin 7 to GPIO6 in the Table 6-1.
Changed the definition of pin 9 to TIMER in the Table 6-1.
Changed the definition of pin 10 to DR_IN in the Table 6-1.
Changed the definition of pin 13 to GPIO11 in the Table 6-1.
Changed the definition of pin 14 to GPIO10 in the Table 6-1.
Changed the definition of pin 15 to GPIO9 in the Table 6-1.
Changed the maximum input voltage of VCC from 4.2V to 4.3V in the section 7.2.
Changed the peak supply current from 56mA to 66mA in the section 7.2.
Changed the acquisition current from 32mA to 14mA in the section 7.2.
Changed the tracking current from 26mA to 12mA in the section 7.2.
Added standby current, 150uA in the section 7.2.
Changed the backup battery current from 5uA to 6uA in the section 7.2
Changed the picture of input voltage vs. current in the section 7.2
Remove the section of LNA characteristics
Changed the minimum operation temperature from -30℃ to -40℃ in the section 7.3
Added dimension tolerance in the section 8.1
Added dimension of paste mask in the section 8.2
Revision 1.3 to Revision 1.4 (January 19, 2012)
Revised 10ns to 11ns in the section 2
Added section 5.5
Page 20/20
© 2006 LOCOSYS Technology Inc.
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