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SA25 - GPS Receiver Interface Adapter

SA-Adapter

The SA25 is a GPS receiver interface adapter which supports L1 frequency, C/A code and SPS.

Download data sheet

  • SA25 Product ImageSA25 GPS SA-Adapter
  • SA25 Product ImageConfiguration example 08SA25-00 with front panel
  • SA25 Product Image
  • SA25 Product Image

Main Features

  • 48-channel GPS receiver
  • GPS according to NMEA 0183
  • L1 frequency, C/A code, SPS
  • Rugged SMA connector
  • Optical isolation
  • -40 to +85°C qualified
SA25 Product Image

Technical Data

GPS Interface
  • 48-channel GPS (Global Positioning System) receiver based on SiRF IV
  • GPS Band/Code: L1 frequency, C/A code, SPS
  • Integrated TCXO, RTC
  • Accuracy (unaided):
    • Position: 2.5 m (CEP50)
    • Velocity: 0.01 m/s (50%)
    • Time: 1 µs (typ.)
  • Time To First Fix (TTFF):
    • Cold start: 35 s typ.
    • Warm start: 35 s typ.
    • Hot start: 1 s typ.
  • Sensitivity:
    • Acquisition (cold): -147 dBm
    • Re-Acquisition: -162 dBm
    • Tracking: -163 dBm
  • Protocol: NMEA 0183 (configurable to SiRF binary OSP)
  • One SMA antenna connector at front panel
    • For the use of an external active or passive antenna
    • Rugged screw connection
    • Outside thread
    • Inner conductor female
Host Interface
5 V TTL COM port
  • Data transfer rate configurable (default: 4800 baud 8N1)
  • Time Mark (TM) output signal provides pulse-per-second (PPS) output pulse signal for timing purposes
Installation
  • As a piggy-back board directly on a carrier board
  • Via ribbon cable
Electrical Specifications
  • Isolation voltage:
    • Optical isolation: 2.5 kVAC between isolated side and digital side
  • Supply voltage/power consumption:
    • +5 V (-3%/+5%), 120 mA without antenna, 190 mA with antenna (depends on used antenna)
    • Max. supported power consumption for active antenna: +5 V / 70 mA
    • Impedance: 50 Ohm
Mechanical Specifications
  • Dimensions: 32 mm x 42 mm
  • Weight: 20 g
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C (qualified)
    • Airflow: min. 1 m/s
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to +3000 m
  • Shock: 15 g, 11 ms
  • Bump: 10 g, 16 ms
  • Vibration (sinusoidal): 1 g, 10..150 Hz
  • Conformal coating on request
MTBF
826 041 h @ 40°C according to IEC/TR 62380 (RDF 2000)
Safety
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMC Conformity
  • EN 50121-3-2 (table 4, 5, 6) (EMC in rolling stock)
  • EN 55011 (radio disturbance)
  • EN 61000-4-2 (ESD)
  • EN 61000-4-3 (electromagnetic field immunity)
  • EN 61000-4-4 (burst)
  • EN 61000-4-5 (surge)
  • EN 61000-4-6 (immunity to conducted disturbances)

Options

Front Connector
One U.FL antenna connector instead of SMA
Some of these options may only be available for large volumes.
Please ask our sales staff for more information.

Ordering Information

Standard SA25 Models
08SA25-00

GPS receiver, isolated, -40..+85°C screened

08SA25-01

GPS receiver, SMA antenna, isolated, -40..+85°C qualified, conformal coating