Global Sat EM-5318 Bedienungsanleitung
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GLOBALSAT GPS Module
User Manual
Product No : EM-5318
Version 1.0
GlobalSat WorldCom Corporation
16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei
Hsien 235, Taiwan
Tel: 886-2-8226-3799 Fax: 886-2-8226-3899
E-mail : service@globalsat.com.tw
Website: www.globalsat.com.tw
Issue Date
2013/06/05
APPR
Ray
CHECK
PREPARE
Mason
EM-5318
High Performance GPS Module
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Product Description
Product Description
EM-5318 GPS module features high sensitivity, low power and ultra small form factor. This GPS
module is powered by SiRF Star IV, it can provide you with superior sensitivity and performance
even in urban canyon and dense foliage environment. With SiRF CGEE (Client Generated
Extended Ephemeris) technology, it predicts satellite positions for up to 3 days and delivers
CGEE-start time of less than 15 seconds under most conditions, without any network assistance.
Besides, Micro Power Mode allows GPS module to stay in a hot-start condition nearly
continuously while consuming very little power. EM-5318 is suitable for the following applications:
Automotive navigation
Personal positioning
Fleet management
Mobile phone navigation
Marine navigation
Notebook navigation
Product Features
SiRF Star IV high performance GPS Chipset
Very high sensitivity (Tracking Sensitivity: chipset -163dBm )
Extremely fast TTFF (Time To First Fix) at low signal level
Support UART(bidirectional transmission)/I2C(unidirectional transmission)
interface( Default UART)
Build-in MMCX connector for external active antenna.
Compact size (30.0mm x 30.0mm x 4.8mm) suitable for space-sensitive application
Support NMEA 0183 V3.0 (GGA, GSA, GSV, RMC, VTG, GLL, ZDA)
Support OSP protocol
Micro Power Mode(MPM) : Reduce MPM current consumption from <500 uA to < 125 uA
Support SBAS (WASS, EGNOS, MSAS, GAGAN, QZSS)
EM-5318
High Performance GPS Module
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Product Block Diagram
Product Pin Description
PIN Number(s)
Name Type
Description Note
1 VCC P This is the main power supply to the engine
board. (3.3Vdc to 5.5Vdc)
2 GND P Ground
3 TIMEPULSE O
This pin provides one pulse-per-second
output from the board, which is synchronized
to
GPS
time.
This
is
not
available
in
Trickle
Power
mode
. If do not use it, Just NC.
4 BOOTSEL I Set this pin to high for programming flash.
5 TXD O
This is the main transmits channel for
outputting navigation and measurement data
to user’s navigation software or user written
software. Baud rate based on flash memory
EM-5318
High Performance GPS Module
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setting, Output TTL level referred VCC
6 RXD I
This is the main receive channel for receiving
software commands to the engine board from
SiRFdemo software or from user written
software. Baud rate based on flash memory
setting.
7 GPIO I/O This GPIO function based on flash memory
setting, and voltage level is 1.8V.
8 VBAT P
This is the battery backup power input for the
SRAM and RTC when main power is off.
Without the external backup battery,
EM-5318 will always execute a cold star after
turning on. To achieve the faster start-up
offered by a hot or warm start, a battery
backup must be connected. The battery
voltage should be between 2.0V and 3.5V.
9 RESET I This pin is input low active. This Module has
internal Power on Reset circuit.
10 NC O EM-5318 reserved pin, Just NC.
MMCX
connector I MMCX Connect to external active antenna
for receiving GPS signal.
EM-5318
High Performance GPS Module
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Electrical Specification
Absolute Maximums Ratings
Parameter Min. Typ. Max. Conditions Unit
Power
Power supply voltage(VCC) 3.3 3.3 5.5 V
Backup battery supply 2.0 3.5 V
Main power supply Current 45 50 55 GPS is not 3D Fixed.
mA
Backup battery supply Current 35 38 45 GPS is 3D Fixed. uA
MMCX output power 2.8 For external active
antenna
V
DC Electrical characteristics
Parameter Symbol Min. Typ.
Max. Conditions Units
TXD Output Voltage
VTO VCC V
RXD Input Voltage
VRI 3.6 V
High Level Output Current
IOH 2 mA
Low Level Output Current
IOL 2 mA
Receiver Performance
Sensitivity
Chipset Tracking :
Chipset Autonomous acquisition :
-163dBm
-160 dBm
< 35s
Cold Start – Autonomous <15s (with CGEE)
< 35s
Warm Start – Autonomous2
< 15s(with CGEE)
Time-To-First-Fix1
Hot Start – Autonomous3 < 1s
Horizontal Position Accuracy4
Autonomous < 2.5m
Velocity Accuracy5
Speed
Heading
< 0.01 m/s
< 0.01 degrees
Reacquisition
0.1 second, average
NMEA Update Rate
Output data format based on SPI flash memory setting
Maximum Altitude
< 18,000 meter
Maximum Velocity
< 515 meter/ second
EM-5318
High Performance GPS Module
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Maximum Acceleration
< 4G
<Note>
1. 50% -130dBm Fu 0.5ppm Tu ±2s Pu 30Km
2. Commanded Warm START
3. Commanded Hot START
4. 50% 24hr static, -130dBm
5. 50% @ 30m/s
Environmental Characteristics
Parameter Min Typ Max Unit
Humidity Range 5 95 % non-condensing
Operation Temperature -40 25 85 ℃
Storage Temperature -40 85 ℃
EM-5318
High Performance GPS Module
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Package Dimensions
Type
10-pin holes
Dimensions
30.0 mm * 30.0 mm * 4.8 mm ±0.2mm
EM-5318
High Performance GPS Module
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Wafer Dimensions(mm)
MMCX connector Dimensions(mm)
EM-5318
High Performance GPS Module
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Reversion history
Reversion Date Name Status / Comments
V1.0 20130605
Mason Initial Version
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