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Excerpt


Electrical Absolute Maximum Rating

ParameterMin.Typ.Max.Unit
VCC to VSS


V
VSS to GND


V
VSS to MAIN_SGND



VSS to AUX_SGND



Digital Input Voltage to Signal Reference ( GND, MAIN_SGND, AUX_SGND ... )


V
Digital Ouput Voltage to Signal Reference ( GND, MAIN_SGND, AUX_SGND ... )


V

Precaution about ESD



Overview

  • Input Power Supply Voltage
  • Current Drawn @ +3.3V, +5V, +12V, +28V
  • Power
  • Compliance
    • MIL-STD-1275
  • Board Connection Overview
    • Figure : Assembly 3D view
      • Fasteners
      • Mating connectors or cables
    • Connectors Specifications
      • Connector Overview
        • Identification
      • Connector Environmental & Mechanical Specifications
        • Table :
          • Characteristic Performance & Standard
          • Sealing performance (Mated & unmated)
          • Sealing performance soft caps
          • Operating Temperature Range
          • Corrosion Resistance Salt mist
          • Endurance mating cycles
          • Vibration, random
          • Shock
          • Characteristic Performance Standard
          • Shell Resistance
          • Insulation Resistance
          • Shielding Effectiveness
        • Connector Keying
          • Table : Connector Keying
            • Connector
            • Key Code
            • Key Pattern

PCB Footprint

  • Figure : PCB Footprint
    • Hole to Hole dimensions
    • Hole to Connector dimensions

Interfaces Specifications

I/O

Connector Specifications

Interface Specification

  • Table : I/O Connector Specifications

  • Figure : Connector Identification

  • Table : GNSS Connector
    • Onboard connector
      • Manufacturer
      • Manufacturer P/N
      • Description
    • Mating connectors
      • Manufacturer
      • Manufacturer P/N
      • Description
    • Figure : I/O Connector Pinout relative to footprint
      • Notch/Index reference
      • Mounting holes, top view
      • Pin arrangement/numbering : Pin 1, Pin N/2-1, Pin N/2, Pin N, top view
    • Table : I/O Connector Pinout
      • Pin #
      • Pin/Signal Name
      • Type
      • Description
      • Connection Tips
    • Table : I/O Electrical Specifications ( recommended operation )
      • Power Supply ( Condition – Min – Nom – Max – Unit )
        • Input Voltage Range
        • Typical Power Consumption
        • Current Consumption
        • Voltage Spike Protection Energy
        • Voltage Surge Protection
        • Reverse Voltage Protection
      • LVTTL
      • RS232
      • RS422
        • Driver Specifications
          • Parameter Condition Min Nominal Max Unit
          • Differential Driver Output Voltage
          • Difference in Magnitude of Driver
          • Differential Output Voltage for Complementary Output States
          • Driver Common Mode Output Voltage
          • Difference in Magnitude of Driver
          • Common Mode Output Voltage for Complementary Output States
          • Maximum Driver Short-Circuit Current
        • Receiver Specifications
          • Parameter Condition Min Nominal Max Unit
          • Receiver Input Resistance 96 125 k Ω
          • Receiver Termination Resistance Enabled
          • Receiver Input Current (Rx- to Rx+)
          • Receiver Differential Input Threshold Voltage (RX- minus RX+)
          • Receiver Input Failsafe Hysteresis
          • Receiver Input Failsafe Threshold
        • SYNC IN/OUT and other General Purpose I/O pins
          • Input low level voltage
          • Input high level voltage
          • Weak pull-up equivalent resistor
          • Output low voltage
          • Output high voltage
          • Output drive current
          • Output high to low fall time
          • Output low to high rise time
          • Output Frequency
        • Isolated
          • Parameter Condition Min Nominal Max Unit
          • Isolation Voltage
          • Working Isolation Voltage
            • Power ground relative to Signal ground
            • Signal ground relative to
          • ESD Protection
          • Input Logic-High Voltage
          • Input Logic-Low Voltage
          • Output Logic-High Voltage
          • Output Logic-Low Voltage
          • Input Capacitance 2 pF
      • Table : I/O Absolute maximum ratings

GNSS RF Connectors

      • Timing Specifications ( recommended operation )

GNSS Antenna Interface Specifications

Onboard
connector
connectors
ManufacturerManufacturer P/NDescription



Note : SBG-SYSTEMS could use other connectors while maintaining the correct match with the corresponding connectors listed below.


Mating

connectors

Connectors

ManufacturerManufacturer P/NDescription



  • Figure ( Gliffy Diagram :  Product_GNSS_Connectors_Identification ) : picture of the label showing

    • Product
    • GNSS  RF Connectors
    • Naming of GNSS RF Connectors

GNSS Antenna Port Electrical Specifications

(

ParametersConditionsMin.
– Nom
Typ.
–
Max.
– Unit )Current-limit switch On-Resistance
UnitsRemarks

Output Voltage (No load)


4.855.2V
Output Current
100 mA

When 2x GNSS antennas are connected--125mA
Current-limit switch Full-load limit
Maximum

--130mA
No-load Current limit
1-5mA
Short-circuit current limit response time
--10µs
ESD Circuit protection--15-15kV


GNSS Antenna Requirements
ParametersRequirements
TypeActive, featuring embedded LNA ( Low Noise Amplificator )
Minimum Gain17 dB
Maximum Gain50 dB
Maximum Noise Figure4 dB
Group delay variation in-band

10 ns max at each GNSS system bandwidth.

Note : Inter-signal requirement 50 ns max.

Out-of-band rejection40 dB typ
Axial ratio2 dB
Phase center variation<10 mm over elevation/azimuth
EMI immunity out-of-band< 30 V/m