Linx Technologies RXM-GPS-SR - 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
+5.5 VDC
Input Battery Backup Voltage +7.0 VDC
Operating Temperature -30 to +85 °C
Storage Temperature -40 to +85 °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: SR Series Receiver Specifications
Parameter Designation Min. Typical Max. Units Notes
POWER SUPPLY
Supply Voltage
V
CC
3.0 – 4.3 VDC –
Supply Current: I
CC
1
Peak – 31 49 mA –
Sleep – <0.1 – mA –
Backup Battery Voltage V BAT 1.3 – 6.0 VDC –
Backup Battery Current I BAT – 10 – µA –
Output Logic Low Voltage V
OL
– – 0.73 VDC –
Output Logic High Voltage V
OH
2.0 – – 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 – 0.8 VDC –
Input Logic High Voltage V
IH
2.1 – 3.6 VDC –
Input Logic Low Current I
IL
-10 – 60 µA –
Input Logic High Current I
IH
-10 – 60 µA –
ENABLE Logic Low Voltage V IL – – 0.25 VDC –
ENABLE Logic High Voltage V IH 1.3 – Vcc VDC –
ENABLE Logic Low Current I IL -0.2 – 1 µA –
ENABLE Logic High Current I
IH
-0.2 – 10 µA –
ENVIRONMENTAL
Operating Temperature Range – -30 – +85 ° C –
Storage Temperature Range – -40 25 +85 ° C –
RECEIVER SECTION
Acquisition Time
Hot Start (Open Sky) – – 2 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
Notes:
1. V CC = 3.3V
PIN ASSIGNMENTS
10
1 2 3 45
6 7 8 9
GND VBACKUP TX RX
GND
GND
LED
NC EN
VCC
Figure 2: SR Series Receiver Pinout (Top View)
Pin # Name I/O Description
1 GND P Ground
2 VBACKUP P
Backup battery supply voltage. This line must be
powered to enable the module.
3 TX O Serial Data Output (default NMEA)
4 RX I Serial Data Input (default NMEA)
5 LED O LED Indicator (100k Ω internal pull-down)
6 NC No Electrical Connection
7 EN I Enable (active high, internal pull-down)
8 VCC P Supply Voltage
9 GND P Ground
10 GND P Ground
PIN DESCRIPTIONS