66-channel GPS Engine Board Antenna Module

66-channel GPS Engine Board Antenna Module
MEDIATEK 3329
Datasheet
66-channel GPS Engine Board
Antenna Module
with MTK Chipset
MEDIATEK-3329
1
Rev.A03
MEDIATEK3329
Datasheet
Rev.A03
History
Date
Rev.
Description
2009/07/10
A00
First Release
2009/07/23
A01
Add RoHS Compliant
2010/03/23
A02
Add Packing and Handling Section, plus SMT and soldering
cautions
2010/04/30
A03
Page 10: Reference design circuit
Page 17: Modify for RMC Magnetic Variation data
2
MEDIATEK3329
Datasheet
Rev.A03
Description
The MEDIATEK-3329 is an ultra-compact POT (Patch On Top) GPS
Module. This POT GPS receiver provides a solution that is high in position and
speed accuracy performances, with high sensitivity and tracking capabilities in
urban conditions. The GPS chipset inside the module is powered by MediaTek
Inc., the world's leading digital media solution provider and the largest fab-less IC
company in Taiwan. The module can support up to 66 channels, and is
designed for small-form-factor device. It is suitable for every GPS-related
application, such as:
ĺġFleet Management/Asset Tracking
ĺġLBS (location-base service) and AVL system
ĺġSecurity system
ĺġHand-held device for personal positioning and travel navigation
Features
MediaTek MT3329 Single Chip
L1 Frequency, C/A code, 66 channels
Support up 210 PRN channels
Jammer detection and reduction
Multi-path detection and compensation
Dimension: 16mm x 16mm x 6mm
Patch Antenna Size: 15mm x 15mm x 4mm
1
High Sensitivity: Up to -165 dBm tracking, superior urban performances
Position Accuracy: Without aid: 3m 2D-RMS
DGPS (RTM,SBAS(WAAS,EGNOS,MASA)):2.5m 2D-RMS
Low Power Consumption: 48mA @ acquisition, 37mA @ tracking
Low Shut-Down Power Consumption: 15uA, typical
DGPS(WAAS/EGNOS/MSAS/GAGAN) support (Default: Enable)
Max. Update Rate: up to 10Hz (Configurable by firmware)
USB Interface support without extra bridge IC
FCC E911 compliance and AGPS support (Offline mode : EPO valid up to 14 days )
RoHS Compliant
3
System Block
MEDIATEK-3329
Datasheet
4
Rev.A03
MEDIATEK-3329
Datasheet
Rev.A03
Mechanical
Unit: mm
5
MEDIATEK3329
Datasheet
Rev.A03
Recommend PCB Layout Pad
No traces and vias are
allowed to pass the area
Footprint Top View
ȶ1.2
őŪůġIJġ
ġ
ġ
Unit: mm
ġ
PCB Bottom View
6
MEDIATEK-3329
Datasheet
Pin Configuration
Top View
Pin Definition
Pin
Name
I/O
PI
Description
Main DC power input
1
VCC
2
ENABLE
I
High active, or keep floating for normal working
3
GND
P
Ground
4
VBACKUP
PI
Backup power input
5
3D-FIX
O
3D-fix indicator
6
DPLUS
I/O
USB port D+
7
DMINUS
I/O
USB port D-
8
GND
P
Ground
9
TXD
O
Serial data output of NMEA
10 RXD
I
Serial data input for firmware update
7
Rev.A03
MEDIATEK3329
Datasheet
Rev.A03
Description of I/O Pin
VCC (Pin1)
The main DC power supply of the module, the voltage should be kept between from 3.2V
to 5.0V. The Vcc ripple must be controlled under 50mVpp (Typical: 3.3V)
ENABLE (Pin2)
Keep open or pull high to Power ON. Pull low to shutdown the module.
Enable (High): 1.8V<= Venable<=VCC
Disable (Low): 0V<= Venable<=0.25V
GND (Pin3)
Ground
VBACKUP (Pin4)
This is the power for GPS chipset to keep RTC running when main power is removed. The
voltage should be kept between 2.0V~4.3V. (Typical: 3.0V)
The pin must be connected for normal operation.
3D-FIX (Pin5)
The 3D-FIX was assigned as fix flag output. If not used, keep floating.
ƅ ġ Before 2D Fix
The pin should continuously output one-second high-level with one-second
low-level signal.
1s
1s
ƅ ġ After 2D or 3D Fix
The pin should continuously output low-level signal.
Low
8
MEDIATEK-3329
Datasheet
Rev.A03
DPLUS (Pin6)
USB Port DPLUS Signal
DMINUS (Pin7)
USB Port DMINUS Signal
GND (Pin8)
Ground
TXD (Pin9)
This is the UART transmitter of the module. It outputs the GPS information for application.
RXD (Pin10)
This is the UART receiver of the module. It is used to receive software commands and
firmware update.
9
\
MEDIATEK-3329
Datasheet
Reference Design
USB Interface
UART Interface
10
Rev.A03
MEDIATEK-3329
Datasheet
Rev.A03
Specifications
General
Chipset
MTK MT3329
Frequency
L1, 1575.42MHz
C/A Code
1.023 MHz
Channels
66 channels
SBAS
WAAS, EGNOS,MSAS ,GAGAN Supported(Default: Enable)
Datum
WGS84(Default), Tokyo-M, Tokyo-A, User Define
CPU
ARM7EJ-S
Dimensions
Length/Width/Height 16*16*6 mm
Weight
6g
Performance Characteristics
Without aid: 3m 2D-RMS
Position Accuracy
DGPS(RTM,SBAS(WAAS,EGNOS,MASA)):2.5m 2D-RMS
Without aid:0.1 m/s
Velocity Accuracy
DGPS (RTCM, SBAS ):0.05m/s
Acceleration Accuracy
Timing Accuracy
Without aid:0.1 m/s²
DGPS (RTCM, SBAS ):0.05m/s²
100 ns RMS
Acquisition:-148dBm (Cold Start)
1
Reacquisition:-160dBm
Sensitivity
Tracking:-165dBm
Update Rate
1Hz (Default)
Acquisition (Open sky, stationary)
Reacquisition Time
Hot start
1
1
Less than 1 second
1.0s (Typical)
1
Warm start
34s (Typical)
1
35s (Typical)
Cold start
1
Reference to GPS chipset specification
11
MEDIATEK3329
Datasheet
Rev.A03
Dynamic
Altitude
Maximum 18,000m
Velocity
Maximum 515m/s
Acceleration
Maximum 4G
I/O
Signal Output
8 data bits, no parity, 1 stop bit
Available Baud Rates
Default:9600bps
(4800/9600/38400/57600/115200 bps by customization)
Protocols
NMEA 0183 v3.01 (Default: GGA,GSA,GSV,RMC,VTG)
MTK NMEA Command
Data output Interface
USB Interface
Logo certified USB 2.0 full-speed compatible
UART Interface
TTL level serial port
Environment
Operating Temperature
-40 °C to 85 °C
Storage Temperature
-50 °C to 90 °C
Operating Humidity
5% to 95% (no condensing)
Mounting
SMD Type ,10 Pin
12
MEDIATEK-3329
Datasheet
Rev.A03
DC Characteristics
Condition
炼
Parameter
Min.
Typ.
Max.
Unit
3.3
炼
5.0
V
50
mVpp
4.3
V
2.8
V
Operation supply Ripple Voltage
炼
3.2
炼
Backup Battery Voltage
炼
2.0
RXA TTL H Level
VCC=3.3V
2.1
3.0
炼
RXA TTL L Level
VCC=3.3V
0
炼
0.9
V
TXA TTL H Level
VCC=3.3V
2.1
炼
2.8
V
TXA TTL L Level
VCC=3.3V
0
炼
0.8
V
USB D+
VCC=5.0V
V
USB D-
VCC=5.0V
V
Operation supply Voltage
Power Consumption @ 3.3V
Acquisition
43
48
53
mA
Tracking
37
mA
10
42
炼
15
炼
uA
Backup Power Consumption@ 3.0V
25°C
32
炼
Shut-down Power Consumption
(via enable pin)
25°C
炼
uA
NMEA Output Sentence
Table-1 lists each of the NMEA output sentences specifically developed and defined by
MTK for use within MTK products
NMEA Output Sentence
Table-1
Option
Description
GGA
Time, position and fix type data.
GSA
GPS receiver operating mode, active satellites
used in the position solution, and DOP values.
GSV
The number of GPS satellites in view satellite ID
numbers, elevation, azimuth, and SNR values.
RMC
Time, date, position, course and speed data.
Recommended Minimum Navigation Information.
VTG
Course and speed information relative to the
ground.
13
MEDIATEK3329
Datasheet
Rev.A03
GGA—Global Positioning System Fixed Data. Time, Position and fix related data for
a GPS receiver
Table-2 contains the values for the following example:
$GPGGA,064951.000,2307.1256,N,12016.4438,E,1,8,0.95,39.9,M,17.8,M,,*65
GGA Data Format
Table-2
Name
Example
Units
Message ID
$GPGGA
GGA protocol header
UTC Time
064951.000
hhmmss.sss
Latitude
2307.1256
ddmm.mmmm
N/S Indicator
N
N=north or S=south
Longitude
12016.4438
dddmm.mmmm
E/W Indicator
E
E=east or W=west
Position Fix
Indicator
1
See Table-3
Satellites Used
8
Range 0 to 14
HDOP
0.95
Horizontal Dilution of
Precision
MSL Altitude
39.9
meters
Description
Antenna Altitude above/below
mean-sae-level
Units
M
meters
Geoidal
Separation
17.8
meters
Units
M
meters
Age of Diff. Corr.
Checksum
Units of antenna altitude
Units of geoidal separation
second Null fields when DGPS is not
used
*65
<CR> <LF>
End of message termination
Position Fix Indicator
Table-3
Value
Description
0
Fix not available
1
GPS fix
2
Differential GPS fix
14
MEDIATEK3329
Datasheet
Rev.A03
GSA—GNSS DOP and Active Satellites
Table-4 contains the values for the following example:
$GPGSA,A,3,29,21,26,15,18,09,06,10,,,,,2.32,0.95,2.11*00
GSA Data Format
Table-4
Name
Example
Units
Message ID
$GPGSA
GSA protocol header
Mode 1
A
See Table-5
Mode 2
3
See Table-6
Satellite Used
29
SV on Channel 1
Satellite Used
21
SV on Channel 2
....
….
….
Description
....
Satellite Used
SV on Channel 12
PDOP
2.32
Position Dilution of Precision
HDOP
0.95
Horizontal Dilution of Precision
VDOP
2.11
Vertical Dilution of Precision
Checksum
*00
<CR> <LF>
End of message termination
Mode 1
Table-5
Value
Description
M
Manual—forced to operate in 2D or 3D mode
A
2D Automatic—allowed to automatically switch 2D/3D
Mode 2
Table-6
Value
Description
1
2
Fix not available
2D (烋4 SVs used)
3
3D (ʁ4 SVs used)
15
MEDIATEK3329
Datasheet
Rev.A03
GSV—GNSS Satellites in View
Table-7 contains the values for the following example:
$GPGSV,3,1,09,29,36,029,42,21,46,314,43,26,44,020,43,15,21,321,39*7D
$GPGSV,3,2,09,18,26,314,40,09,57,170,44,06,20,229,37,10,26,084,37*77
$GPGSV,3,3,09,07,,,26*73
GSV Data Format
Table-7
Name
Example
Units
Description
Message ID
$GPGSV
GSV protocol header
Number of
Messages
3
Range 1 to 3
(Depending on the number of
satellites tracked, multiple
messages of GSV data may be
required.)
Message Number1
1
Range 1 to 3
Satellites in View
09
Satellite ID
29
Elevation
36
degrees Channel 1 (Maximum 90)
Azimuth
029
degrees Channel 1 (True, Range 0 to
359)
SNR (C/No)
42
dBHz
Range 0 to 99,
(null when not tracking)
....
….
….
....
Satellite ID
15
Elevation
21
degrees Channel 4 (Maximum 90)
Azimuth
321
degrees Channel 4 (True, Range 0 to
359)
SNR (C/No)
39
dBHz
Channel 1 (Range 1 to 32)
Channel 4 (Range 1 to 32)
Range 0 to 99,
(null when not tracking)
Checksum
*7D
<CR> <LF>
End of message termination
16
MEDIATEK3329
Datasheet
Rev.A03
RMC—Recommended Minimum Navigation Information
Table-8 contains the values for the following example:
$GPRMC,064951.000,A,2307.1256,N,12016.4438,E,0.03,165.48,260406,3.05,W,A*2C
RMC Data Format
Table-8
Name
Example
Units
Description
Message ID
$GPRMC
RMC protocol header
UTC Time
064951.000
hhmmss.sss
Status
A
A=data valid or V=data not
valid
Latitude
2307.1256
ddmm.mmmm
N/S Indicator
N
N=north or S=south
Longitude
12016.4438
dddmm.mmmm
E/W Indicator
E
E=east or W=west
Speed Over
Ground
0.03
knots
Course Over
165.48
degrees True
Ground
Date
260406
ddmmyy
E=east or W=west
Magnetic Variation
3.05, W
Mode
A
Checksum
*2C
degrees (Need customization
service)
A= Autonomous mode
D= Differential mode
E= Estimated mode
<CR> <LF>
End of message termination
17
MEDIATEK3329
Datasheet
Rev.A03
VTG—Course and speed information relative to the ground.
Table-9 contains the values for the following example:
$GPVTG,165.48,T,,M,0.03,N,0.06,K,A*37
VTG Data Format
Table-9
Name
Example
Message ID
$GPVTG
Course
165.48
Reference
T
Course
Units
Description
VTG protocol header
degrees Measured heading
True
degrees Measured heading
Reference
M
Magnetic
(Need customization
service.)
Speed
0.03
Units
N
Speed
0.06
Units
K
Kilometers per hour
Mode
A
A= Autonomous mode
D= Differential mode
knots
Measured horizontal speed
Knots
km/hr
Measured horizontal speed
E= Estimated mode
Checksum
*06
<CR> <LF>
End of message termination
MTK NMEA Command Protocol
Packet Type:
103 PMTK_CMD_COLD_START
Packet Meaning:
Cold Start: Don’t use Time, Position, Almanacs and Ephemeris data at re-start.
Example:
$PMTK103*30<CR><LF>
18
MEDIATEK3329
Datasheet
Rev.A03
Manual Soldering:
Soldering iron:
Bit Temperature: Under 380°C
Time: Under 3 sec.
Notes:
1. Please do not directly touch the soldering pads on the surface of the PCB
board, in order to prevent further oxidation
2. The solder paste must be defrosted to room temperature before use so it can
return to its optimal working temperature. The time required for this procedure
is unique and dependent on the properties of the solder paste used.
3. The steel plate must be properly assessed before and after use, so its
measurement stays strictly within the specification set by SOP.
4. Please watch out for the spacing between soldering joint, as excess solder may
cause electrical shortage
5. Please exercise with caution and do not use extensive amount of flux due to
possible siphon effects on neighboring components, which may lead to
electrical shortage.
6. Please do not use the heat gun for long periods of time when removing the
shielding or inner components of the GPS module, as it is very likely to cause a
shift to the inner components and will leads to electrical shortage.
19
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