GNS 5851 AIS module

Datasheet V0.9

confidential information preliminary specification

V 0.9, Aug 29

2021

1 INTRODUCTION

GNS-Electronics introduces the new GNS 5851 AIS receiver module for the maritime market.

The GNS 5851 is a highly sensitive single-channel receiver which can either be used stand-alone as a channel

hopping receiver or as a chained pair to form a complete two channel solution depending on customer needs.

The module integrates a sensitive RF frontend, signal processing and a data decoder with standard NMEA AIS

output via a UART that can be easily connected to a host processor. A secondary UART is provided for module

chaining.

Features

• Standard AIS NMEA output

• Sensitivity -117 dBm

• Selectable Channel A, B or A & B (hopping)

• Small outline 26x15x3.3mm

• Ultra-Low power consumption : 20 mA

• Frame decode indicator output

• Easy to mount stamp hole PCB design

• Evaluation Board with USB bridge available

Applications

• Maritime safety

• Shore/Harbour equipment

• Data loggers for internet based online

marine tracking systems

GNS 5851 AIS module

Datasheet V0.9

confidential information preliminary specification

V 0.9, Aug 29

2021

2 INDEX

1 INTRODUCTION ............................................................................................................ 1

2 INDEX ....................................................................................................................... 2

3 BLOCK DIAGRAM .......................................................................................................... 3

4 TYPICAL APPLICATION BLOCK DIAGRAM ................................................................................ 3

5 DETAILED DESCRIPTION ................................................................................................... 4

5.1 UART Interface details ................................................................................................................................. 4

5.2 Power supply ........................................................................................................................................... 5

5.3 Reset input ............................................................................................................................................. 5

5.4 Frame available output ................................................................................................................................ 5

5.5 RF input (RFin) .......................................................................................................................................... 5

5.6 AIS VHF antenna ....................................................................................................................................... 5

6 ELECTRICAL SPECIFICATION ............................................................................................... 6

6.1 Absolute Maximum Ratings ........................................................................................................................... 6

6.2 Recommended Operating Conditions................................................................................................................. 6

6.3 Characteristics .......................................................................................................................................... 6

6.4 RF input characteristics ................................................................................................................................ 6

7 DEVICE PINOUT DIAGRAM ................................................................................................ 7

8 AIS DATA ................................................................................................................... 8

9 COMMAND INTERFACE ................................................................................................... 9

9.1 Command Sentences (Host → Device) ................................................................................................................ 9

10 PHYSICAL DIMENSIONS .............................................................................................. 11

11 RECOMMENDED PAD LAYOUT ....................................................................................... 12

12 MATERIAL INFORMATION ........................................................................................... 13

12.1 Shield Material Information ..................................................................................................................... 13

13 RECOMMENDED SOLDERING REFLOW PROFILE .................................................................... 13

14 TAPE INFORMATION .................................................................................................. 14

15 REEL INFORMATION .................................................................................................. 15

16 ORDERING INFORMATION ........................................................................................... 15

17 ENVIRONMENTAL INFORMATION ............................................................................ 16

17.1 Quality and Environmental Specifications ........................................................................................... 16

18 DOCUMENT REVISION HISTORY ...................................................................................... 17

19 DISCLAIMER........................................................................................................ 17