Linx Technologies RXM-GPS-SG - Manual (Page 2)

ELECTRICAL SPECIFICATIONS
*CAUTION*
This product incorporates numerous static-sensitive components.
Always wear an ESD wrist strap and observe proper ESD handling
procedures when working with this device. Failure to observe this
precaution may result in module damage or failure.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
CC
+6.5 VDC
Input Battery Backup Voltage +7.0 VDC
2.85V Output Current 50 mA
Operating Temperature -30 to +85 °C
Storage Temperature -40 to +125 °C
Soldering Temperature +225°C for 10 seconds
*NOTE* Exceeding any of the limits of this section may lead to permanent
damage to the device. Furthermore, extended operation at these maximum
ratings may reduce the life of this device.
Table 1: SG Series Receiver Specifications
Parameter Designation Min. Typical Max. Units Notes
POWER SUPPLY
Supply Voltage
V
CC
3.0 – 4.2 VDC 1
Supply Current: I
CC
2
Peak – – 46.0 mA 6
Acquisition – 32 – mA 6
Tracking – 28 – mA 6
Standby – 1.5 – mA 6
Backup Battery Voltage V
BAT
1.3 – 6.0 VDC –
Backup Battery Current I
BAT
– 10 – µA –
2.85V Output Voltage V
OUT
2.79 2.85 2.91 VDC –
2.85V Output Current I
OUT
– – 30 mA 3
Output Logic Low Voltage V
OL
– – 0.25*V
OUT
VDC –
Output Logic High Voltage V
OH
0.75*V
OUT
– – VDC –
Output Logic Low Current I
OL
– 2 – mA –
Output Logic High Current I
OH
– 2 – mA –
Input Logic Low Voltage V IL -0.3 – 0.3*V OUT VDC –
Input Logic High Voltage V IH 0.7*V OUT – 3.6 VDC –
Input Logic Low Current I IL -60 – 20 µA –
With Pull-down – – 60 µA –
Input Logic High Current I
IH
-60 – 20 µA –
With Pull-down – – 60 µA –
Input Capacitance C
IN
– – 4 pF –
Output Capacitance C
OUT
– – 4 pF 4
LNA SECTION
Insertion Power Gain
|S 21 | 2 – 18 – dB 5
Noise Figure NF – 0.9 – dB 5
ANTENNA PORT
RF Input Impedance
R
IN
– 50 – Ω –
ENVIRONMENTAL
Operating Temperature Range – -30 – +85 ° C –
Storage Temperature Range – -40 25 +85 ° C –
RECEIVER SECTION
Receiver Sensitivity
Tracking – -159 – dBm –
Cold Start – -144 – dBm –
Acquisition Time
Hot Start (Open Sky) – – 2 S –
Hot Start (Indoor) – – 15 S –
Cold Start – 35 – S –
Position Accuracy
Autonomous – – 10 m –
SBAS – – 5 m –
Altitude – – 60,000 ft –
Velocity – – 1,000 Knots –
Chipset SiRF Star III, GSC3f/LPx 7990
Firmware Version GSW3.5.0_3.5.00.00-SDK-3EP2.01A
Frequency L1 1575.42MHz, C/A Code
Channels 20
Update Rate 1Hz
Protocol Support NMEA 0183 ver 3.0, SiRF Binary
Page 2 Page 3
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Notes:
1. I
OUT
= 0
2. V
CC
= 3.3V, I
OUT
= 0
3. V CC = 3.3V
4. Output buffer
5. At 25
° C
6. With passive antenna. Active antennas will increase current consumption.