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NLC-SKII

TIMING
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Resolution T

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NLC-SKII Produit Naelcom

 
datasheet
datasheet
 

NLC-SKII
Introduction
NAELCOM has produced a new GPS receiver board, the “NLC-SKII”, which is based on the Copernicus™ high performance GPS chip set.
This OEM module is designed for use in embedded and industrial applications requiring high accuracy positioning and timing information.
It can also be used as a replacement and upgrade for users of the Trimble Lassen™ SKII receiver module.
The NLC-SKII module is RoHS (lead free) compliant.

Advantages
  • Ultra-high sensitivity of -152dBm (-182dBw), enabling high performance acquisition and tracking in urban canyon and signal obscured environments.
  • Cold Start Time to First Fix (TTFF) is quicker than 39s.
  • Low power consumption: 45mA @ 5V, with Power-Good LED.
  • The 2 ports that can be configured to suit the customer’s requirements such as: input and output protocols and transmission speed.
  • Configuration parameters backed-up to an EEPROM.
  • Pin to pin compatible with Trimble Lassen™ SKII GPS receiver; same form factor, for ease of integration.
  • Communication port outlet in 3V or 5V TTL level, depending on the version.
  • Protection against open and/or short circuit on the antenna (60mA), and alarms reported through serial port.
  • Accurate pps (pulse per second signal), better than 100ns.
  • Optional: Antenna voltage selectable by internal switch: 3V or 5V.
  • Optional: Back-up capacitor with an autonomy of 40 hours for hot start-up after a power cut.

EMC compability
The NLC-SKII module has successfully completed compliance testing in accordance with the directive.

Factory setting of the two ports
The two communication ports are set as standard as follows:

Port
Protocol
Baud rate
Data bits
Parity
Stop bits
Port1
TSIP
38400
8
None
1
Port2
NMEA
4800
8
None
1


Options

Options (for any requirement, please contact us)
Power supply voltage: 3.3VDC
Backup: battery capacitor
Antenna connector: SMA, SMB low profile, MCX
Configuration switch: LED (ON/OFF)
antenna voltage (5V/3V)


NLC-SKII Technical Data

Performance Specifications
General:: L1 (1575.42 MHz) frequency, C/A code
12-channel, continuous tracking receiver
Update rate: TSIP @ 1 Hz; NMEA @ 1 Hz; TAIP @ 1 Hz
Accuracy: Horizontal: <3 meters (50%), <8 meters (90%)
Altitude: <10 meters (50%), <16 meters (90%)
Velocity: 0.06 m/sec
PPS: ±50 nanoseconds
Acquisition: Hot start: <9 seconds
Warm start: <35 seconds
Cold start: <39 seconds
Reacquisition: <2 seconds (after signal loss)
Sensitivity: Tracking: –152 dBm
Acquisition: –142 dBm
Environmental Specifications
Operating temp: –40°C to +85°C
Storage temp: –55°C to +100°C
Electrical Charactistics:
Prime power: +4.5VDC to 5.5VDC
Power consumption: 45mA
Back-up power: +3.2VDC to 5.5VDC
Power consumption: 8µA typical
Interface Charactistics:
Serial ports: 2 serial ports
PPS: 3.0 V CMOS-compatible, TTL-level pulse, once per second
Supported Protocols: TSIP, TAIP, NMEA 0183 v3.0
Bi-directional NMEA messages
Messages selectable by NMEA commands
Selection stored in flash memory
Physical Characteristics :




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