GXB2000
16-Channel GPS Receiver Module
Description
The GXB2000 is a 16-channel GPS receiver module. The GXB2000 is a small and light device, and it
includes all the functions required for GPS except for the antenna.
The GXB2000 can be support the various kinds of the portable applications as well as the car navigation system.
Features
•
16-channel GPS receiver capable of simultaneously receiving 16 satellites
•
All-in-view measurement
•
2-satellite measurement
•
D-GPS (Differential GPS)
RTCM
DARC
SC104 version 2.1
BTA R-003 standard
•
Low current consumption (270mW, Typ)
•
Small and light package type
•
The countermeasure of EMI (electromagnetic wave impediment)
Recommended Operating Conditions
•
Supply voltage (3V spec.)
V
DD
3.0 to 3.6
(5V spec.)
V
CC
4.5 to 5.5
•
Operating temperature
Topr
–40 to +85
V
V
°C
GPS (Global Positioning System) is the position measurrment system that the U.S. control and operate. It have some posibility of
the position measurement deterioration that depends on the working GPS.
It dose not gurantee the standard,etc in this material including the case above.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E99658-PS
GXB2000
Specification
Specification of reception unit
Reception method
RF input
Reception frequency
Characteristics impedance
Reception sensitivity
Parallel 16 channels
1575.42MHz L1 band, C/A code
50Ω
–130dBm or less
(Sony's recommended anntena input level)
WGS-84
Position
Velocity
100m 2DRMS
(SA ON, PDOP = 2.5, HDOP = 1.5)
0.9m/s
(SA ON, PDOP = 2.5, HDOP = 1.5)
A) DOP limit
3D: PDOP
≤
12
2D: HDOP
≤
6
B) Elevation mask: 5° or more
Follow-up performance
Velocity
Acceleration
500km/h or less
2G or less
Every 1s
DARC BTA R-003 standard
RTCM SC104 version 2.1
(6 of 8 format)
Using type 1 data for correct caluculation
All-in-view measurement
2-satellite measurement
Positioning system
Positioning accuracy
Positioning condition
Measured data update time
D-GPS function
Measurement method
–2–
GXB2000
TTFF (No signal break)
∗
1
Hot Start (time, position, with ephemeris and almanac)
7 to 20s
Warm Start (time, position, without ephemeris, with almanac)
33 to 50s
Cold Start (time, position, without ephemeris and almanac)
35 to 60s
Reacquisition Time (interrupt recovery time)
The case of the interrupt less than 5 minutes
The case of the interrupt more than 5 minutes
2 to 6s
6 to 10s
∗
1
Condition: The case of meeting positioning condition and receiving 8 satellites continuously and normally.
Conditons of Cold Start
Abnormal RAM data and abnormal RTC data for
the command input
RF input connector
I/O connector (Power supply, data mode)
Communication Specification
Communication method
Transfer rate input/output
Electric level
I/O code
Communication format
Electrical Specification
Supply voltage (3V spec.)
(5V spec.)
Current consumption
Backup supply voltage
current
Pre-amplifier power supply
Operating temperature
3.1 to 3.6V Ripple 50mVp-p or less
4.5 to 5.5V Ripple 50mVp-p or less
82mA typ. (Vcc = 3.3V, 25°C)
1.8 to 3.0V
30µA typ. (+B = 3.0V, 25°C)
70µA max. (+B = 3.0V, 85°C)
2.7 to 3.6V, 10 to 30mA
–40 to +85°C
Start-stop synchronization
9600bps
TTL level
ASCII code
Sony/NMEA0183 switching possible
JST: CN connector
JST: SM10B-SRSS
–3–
GXB2000
I/O Connector Pin
Pin Configuration
Pin
No.
1
2
3
4
5
6
7
8
9
10
Symbol
V
CC
RESET
TXD0
RXD0
RXD1
MODE
NC
+BU
NC
GND
I/O
—
I
O
I
I
I
—
—
—
—
Main power supply.
Reset input for initializing the reception unit.
Measured data output.
Command input.
D-GPS data input.
Communication format switching pin. (L = Sony, H = NMEA0183)
No connection.
Power supply for backup.
Fixed H level.
GND
Description
Electrical Characteristics
Item
Supply voltage
3V spec.
5V spec.
H level
L level
H level
L level
Symbol
V
DD
Vcc
V
IH
V
IL
V
OH
V
OL
I
OH
= –4mA
I
OL
= 4mA
1.8
+BU = 3V
5
30
V
DD
– 0.8
0.4
3.0
70
Conditions
Min.
3.0
4.5
0.7V
DD
Typ.
3.3
5.0
Max.
3.6
5.5
5.5
0.2V
DD
(Topr = –40 to +85°C)
Unit Applicable pins
V
1
Input voltage
V
2, 4, 5
Output voltage
Backup supply voltage
V
V
µA
3
8
8
Current consumption at backup
–4–
GXB2000
Antenna Pre-amplifier Power Supply Circuit
15Ω
(1/2W)
1
(V
CC
)
10
(GND)
I/O connector
RF connector
+3V (3/5V common specification)
RF part
Sony Recommend Antenna Specification
Antenna part
Center frequency
Polarization
Gain
Axis ratio
Pre-amplifier part
Gain
Noise figure (NF)
1575.42MHz
Right handed circular polarization
–5dBi or more (5°
≤
Angle of elevation)
3dB typ. (Angle of elevation = 90°)
22dB or more (without cable loss)
2.5dB or less
All-round specification (antenna + pre-anplifire + cable loss)
Gain
17dBi or more (Angle of elevation = 90°)
Output impedance
50Ω
Output VSWR
2.0 or less
Supply voltage
2.8 to 3.2V
Current consumption
30mA or less
–5–
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