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PNT-SG3FS
Lantronix PNT-SG3FS Manuals
Manuals and User Guides for Lantronix PNT-SG3FS. We have
1
Lantronix PNT-SG3FS manual available for free PDF download: Hardware User's Manual
Lantronix PNT-SG3FS Hardware User's Manual (27 pages)
GNSS Module
Brand:
Lantronix
| Category:
Control Unit
| Size: 0.89 MB
Table of Contents
Table of Contents
4
List of Figures
6
List of Tables
7
Introduction
8
Overview
8
Figure 1: PNT-SG3FS Pin out
8
Power
9
VCC
9
Vbat
9
Vcc_Io
9
Table 1. VCC Voltage Characteristics against VCC_IO
9
Table 2. VBAT Voltage Characteristics against VCC_IO
9
Table 3. VCC_IO Supported Voltage Range
9
Vcc_Rf
10
Figure 2: PNT-SG3FS Minimum Functional Connections
10
Figure 3: VCC_RF Output Supply Filtering
11
Power Supply Design Reference
12
Current Consumption Optimization
12
Figure 4: Power Supply Filtering
12
Figure 5: Example of SMPS to Improve Current Consumption
12
Interfaces
13
I2C
13
Uart
13
I/O Pins
14
Pps
14
Wakeup
14
Nreset
14
Figure 6: Wakeup Internal Circuitry
14
Rf_In
15
Antoff
15
Reserved
15
Standby Modes
16
Front End Management
17
Passive Antenna
17
External LNA
17
Figure 7: PNT-SG3FS Passive Antenna Connection
17
Active Antenna
18
Figure 8: External LNA Connection
18
Figure 9: Active Antenna with Current Switch Control
19
Figure 10: Active Antenna Current Sense Without On-Module Antenna Sensing
19
Reference Schematic and BOM
21
Schematic
21
Figure 11: General Schematic
21
Bill of Materials
22
Table 4. PNT-SG3FS Carrier BOM
22
Layout Recommendations
23
Figure 12: PNT-SG3FS PCB Layout Example
23
Figure 13: Parallel Component Pads Position
23
Figure 14: Bypass Component Pads Position
23
Antenna Recommendations
24
Patch Antenna
24
Figure 15: Antenna and PNT-SG3FS - Opposite Placement
24
Table 5. PNT-SG3FS Compatible Patch Antennas (Opposite Side Mount)
24
Figure 16: Patch Antenna and PNT-SG3FS, Opposite Side Placement Example
25
Figure 17: 25×25Mm SMD Antenna and PNT-SG3FS, same Side Placement Example
26
Table 6. PNT-SG3FS Compatible Patch Antennas (same Side Mount)
26
Figure 18: Chip Antenna and PNT-SG3FS, same Side Layout Example
27
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