GPS/GLONASS receiver. GNS702 Datasheet

GNS702 receiver. Datasheet pdf. Equivalent

GNS702 Datasheet
Recommendation GNS702 Datasheet
Part GNS702
Description GPS/GLONASS receiver
Feature GNS702; GPS/GLONASS receiver GNS702 Datasheet V1.2 preliminary specification 1 INTRODUCTION GNS702 is a sm.
Manufacture GNS
Datasheet
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GNS GNS702
GPS/GLONASS receiver
GNS702
Datasheet V1.2
preliminary specification
1 INTRODUCTION
GNS702 is a small autonomous GPS/GLONASS receiver, based upon the MediaTek MT3333 single
chip, available with a finely tuned, high-sensitivity ceramic chip antenna. The receiver supports GPS
and GLONASS simultaneously.
The navigation performance and accuracy is further improved by using correction data from SBAS
(WAAS, EGNOS, GAGAN, MSAS), QZSS.
First Fixes after just a few seconds are achieved with the help of A-GPS using EPOTM ( Extended
Prediction Orbit) and the EASYTM “self generated orbit prediction” algorithm. EASYTM (Embedded
Assist System) does not require any resources or assist data from the host.
The excellent low power design makes it easy to implement this receiver in power sensitive, battery
supplied applications. The new AlwaysLocateTM power management feature will improve this
behaviour additionally. It adaptively adjusts power consumption depending on the environment and
motion conditions, in order to achive a balance between fix rate, power consumption and position
accuracy.
Very low power requirements (typ 93mW@ 3.3V, tracking for GPS+GLONASS) and internal voltage
regulator makes it easy to run the receiver with various power supplies and allows direct connection
to LiIon batteries.
GNS702 offers the industry’s highest level of navigation sensitivity up to -165dBm1. It has superior
dynamic performance at high velocity and provides effective protection against interference signals
using MTAICTM ( Multi-tone active interference canceller). Up to 12 independent channel
interference continious wave jammers <-80dBm can be eliminated or reduced.
The embedded logger function LOCUS with a 16-hrs on chip memory makes this GPS module a
complete track logger for many applications. With AlwaysLocateTM data logging can be achieved up
to 32-hrs under standard conditions.
In professional timing applications the outstanding high accuracy PPS (pulse per second) hardware
pin is used for synchronization to GPS second. Typical accuracy is 10ns.
1 Note: Based on chip specifications
© GNS-GmbH 2013
V 1.2, Apr 5th 2013
1



GNS GNS702
GPS/GLONASS receiver
GNS702
Datasheet V1.2
preliminary specification
Features
GLONASS and GPS simultaneously
99 acquisition-/ 33 tracking channels
• Ultra high tracking/navigation sensitivity: -165dBm1
Smart antenna: finely tuned 5.2x3.7x0.7mm ceramic chip antenna
SBAS (WAAS,EGNOS,MSAS,GAGAN, QZSS) correction support
A-GPS by EPO “Extended Prediction Orbit” TM enables 7/14days prediction
12 Multitone Active Interference Canceller (MTAIC) for GPS-in-band jammer rejection
EASY TM : Self generated orbit prediction support
AlwaysLocate TM : Intelligent Algorithm for power saving
High accuracy 1PPS output
• NMEA-0183 or binary protocol
High update rate (up to 10/s)
Embedded logger function with 16hrs internal memory
GPS current consumption (@3.3V):
Acquisition: 35mA Typical
Tracking: 28mA Typical
Low backup current consumption 7uA, typical
• SMD type with stamp holes
• Small form factor: 16x16x2.1mm
CE, FCC and RohS certified
1 Note: Based on chip specifications
© GNS-GmbH 2013
V 1.2, Apr 5th 2013
2



GNS GNS702
GPS/GLONASS receiver
GNS702
Datasheet V1.2
preliminary specification
2 INDEX
1 INTRODUCTION -----------------------------------------------------------------------------------------1
2 INDEX ---------------------------------------------------------------------------------------------------3
3 FUNCTIONAL DESCRIPTION ----------------------------------------------------------------------------4
3.1 System description -----------------------------------------------------------------------------------------------------------4
3.2 Block diagram-----------------------------------------------------------------------------------------------------------------4
3.3 GPS and GLONASS simultaneous operation --------------------------------------------------------------------------------5
3.4 Power Management Features ------------------------------------------------------------------------------------------------5
3.5 Logger function ---------------------------------------------------------------------------------------------------------------7
3.6 Active interference cancellation (MTAIC) -----------------------------------------------------------------------------------7
3.7 AGPS with EPO data ----------------------------------------------------------------------------------------------------------7
3.8 EASYTM self generated prediction data feature ------------------------------------------------------------------------------8
3.9 Pulse Per Second (PPS) ------------------------------------------------------------------------------------------------------9
3.10 SBAS (Satellite Based Augmentation) support --------------------------------------------------------------------------9
3.11 Single sentence output ---------------------------------------------------------------------------------------------------9
3.12 Last position retention -------------------------------------------------------------------------------------------------- 10
3.13 Geofencing function ----------------------------------------------------------------------------------------------------- 10
3.14 Magnetic variation feature ---------------------------------------------------------------------------------------------- 10
3.15 Distance calculation feature -------------------------------------------------------------------------------------------- 10
3.16 GPS/GLONASS almanac and ephemeris data ------------------------------------------------------------------------- 10
3.17 Real time clock (RTC) --------------------------------------------------------------------------------------------------- 10
3.18 UART interface----------------------------------------------------------------------------------------------------------- 10
3.19 Module default settings ------------------------------------------------------------------------------------------------- 11
4 TYPICAL APPLICATION BLOCK DIAGRAM ------------------------------------------------------------ 12
4.1 Typical System Overview -------------------------------------------------------------------------------------------------- 12
5 GPS/GLONASS characteristics ------------------------------------------------------------------------ 13
5.1 GPS/GLONASS characteristics --------------------------------------------------------------------------------------------- 13
6 DESIGN GUIDELINES --------------------------------------------------------------------------------- 14
7 ELECTRICAL SPECIFICATION ------------------------------------------------------------------------- 14
7.1 Absolute Maximum Ratings ------------------------------------------------------------------------------------------------ 14
7.2 Recommended Operating Conditions-------------------------------------------------------------------------------------- 14
8 PIN CONFIGURATION --------------------------------------------------------------------------------- 15
9 PHYSICAL DIMENSIONS ------------------------------------------------------------------------------ 16
10 RECOMMENDED PAD LAYOUT ----------------------------------------------------------------------- 17
11 RECOMMENDED PCB LAYOUT ----------------------------------------------------------------------- 18
12 NMEA DATA interface-------------------------------------------------------------------------------- 18
12.1 NMEA output sentences------------------------------------------------------------------------------------------------- 19
12.2 NMEA command interface ---------------------------------------------------------------------------------------------- 19
13 MATERIAL INFORMATION --------------------------------------------------------------------------- 20
14 RECOMMENDED SOLDERING REFLOW PROFILE --------------------------------------------------- 20
15 TRAY PACKAGE INFORMATION --------------------------------------------------------------------- 21
16 ORDERING INFORMATION -------------------------------------------------------------------------- 21
17 FCC COMPLIANCE------------------------------------------------------------------------------------ 21
18 ENVIRONMENTAL INFORMATION ------------------------------------------------------------------- 22
19 MOISTURE SENSITIVITY ---------------------------------------------------------------------------- 22
20 DOCUMENT REVISION HISTORY -------------------------------------------------------------------- 22
21 RELATED DOCUMENTS ------------------------------------------------------------------------------ 22
© GNS-GmbH 2013
V 1.2, Apr 5th 2013
3







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