M-9129 is an ultra miniature 13 * 15 * 2.2 mm GPS engine board designed
by low power consumption MTK GPS solution. It provides superior
sensitivity up to -165 dBm and fast Time-To-First-Fix in navigation
application. The stable performance of M-9129 is your best choice to be
embedded in your portable device design, like PDA、PND、mobile phone、
Digital Camera for GPS service.
1.2 Key Features
‧ Small form factor: 13* 15 * 2.2 mm
‧ RoHS/WEEE compliant
‧ High sensitivity -165 dBm (Tracking)
‧ Up to 66 parallel searching,22 tracking channels
‧ Fast Position Fix
‧ Low power consumption
‧ RTCM-in ready.
‧ Built-in WAAS/EGNOS/MSAS Demodulator.
‧ Support NMEA0183 V 3.01 data protocol.
‧ Real time navigation for location based services.
‧ For Car Navigation, Marine Navigation, Fleet Management, AVL and
Location-Based Services, Auto Pilot, Personal Navigation or touring
devices, Tracking devices/systems and Mapping devices application
1.3 Applications
‧ Automotive and Marine Navigation
‧ Automotive Navigator Tracking
‧ Emergency Locator
‧ Geographic Surveying
‧ Personal Positioning
‧ Sporting and Recreation
‧ Embedded applications: Smart phone, UMPC, PND, MP4
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GPS Engine Board M-9129
12 11
2 Technical Description
2.1 Block Diagram
2.2 Pin Definition
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
Top view Button view
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
22
17 6
M-9129 VA1 100813
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
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GPS Engine Board M-9129
1 PPS output, synchronized with GPS time.
e I/O. flash at 1Hz when position is
for power down,(Keep NC if not used is
Pin Pin Name Type
1
2
3
4
5
6
7
8
9
10
11
12
RXDB
TXDB
1PPS
TXDA
RXDA
GND
GPIO8
GPIO0
GPIO4
VOUT
Standby
V_BAT
I Serial Data Input B
O Serial Data Output B
O
O Serial Data Output A
I Serial Data Input A
G Ground
I/O General purpose I/O
I/O General purpos
I/O General purpose I/O
O Power State Indicate, 2.8 VDC Output
I Low active
I RTC and backup SRAM power Input:
Function description
TIME_MARK 1 PPS output, 1us/s
fixed.
High)
DC Input:2.8~4.2V.
NC: provided it by module internal LDO.
13
14
15
16
17
18
19
VCC_RF_O
20
21
22
VCC_IN
GPIO6
GPIO7
GPIO5
GND
RESET
GND
RF_IN
GND
I 3.3 ~ 4.2 VDC Power Input
I/O General purpose I/O
I/O General purpose I/O
I/O General purpose I/O
G Ground
I Reset , Low active
O Active antenna power supply output, 2.8 VDC
G Ground
Tray dimension: 325*220*9 mm, Standard Content Qty : 100 pcs.
Carton dimension: 340*235*120 mm, Standard Content Qty : 2,000 pcs.
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GPS Engine Board M-9129
4.2 Reference Product Photo
The photo is for reference, the real content will depend on the real
configuration.
Top side:
Bottom side: (The PCB version depend)
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GPS Engine Board M-9129
5. User Interface
M-9129 provides 2-wire digital UART port for communication of GPS position
data using NMEA protocol or MTK extension protocol. UART port is capable of
4800 to 115200 baud rate.
5.1 NMEA Protocol
M-9129 is default to support standard NMEA-0183 protocol. In addition, a
series of MTK extensions (PMTK messages) have been developed that can
be used to provide extended capabilities common to many applications.
5.2 NMEA Protocol format
M-9129 is capable of supporting following NMEA formats:
the decoder how to
decode the packet
“, ”must be inserted
ahead each data
filed to help the
decoder process
the Data Field
The star symbol is
used to mark the
end of Data Field
checksum of the
data between
Preamble “, ”and “*”
used to identify the
end of a packet
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GPS Engine Board M-9129
6.
Reference Design
6.1 Reference circuit
Fig A-1 is M-9129 uses Active Antenna connects to RS-232 transceiver
solutions intended for portable or hand-held applications such as notebook
and palmtop computers.
Fig.A-1
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GPS Engine Board M-9129
6.2 Reference PCB pattern
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GPS Engine Board M-9129
6.3 Recommendation reflow profile
1. We strongly recommend that this module should be designed to mount on
top side of motherboard with main chip together which process the final
reflow.
2. The maximum frequency of this module to pass reflow process should be
no more than twice, including repair operation, otherwise it may cause side
effect to the performance.
3. Below is the recommend reflow profile referred to Main MTK chip set.
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