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NT1069 N8 FMC HIGH-PERFORMANCE EVALUATION KIT

Category:
  • Interference resistant NT1069 RF Front-End ICs
  • High noise immunity and high linearity of the NT1069 RF Front-End IC channel
  • 8 RF channels
  • 12/14-bit @100MHz ADC
  • External Gain Control of NT1069 LNA and IFA
  • Flexibility with FMC connector
  • Internal GNSS receiver
  • Ability to connect the external GNSS receiver
  • Ability to debug and test own algorithms developed on FPGA board
  • Demonstration of the NT1069 RF ICs performance

NT1069-N8_FMC is a single enclosure evaluation kit that features interference-resistant single channel NT1069 RF ICs. This Evaluation Kit is able to accept GPS, GLONASS, Galileo, BeiDou, IRNSS, QZSS GNSS signals in L1, L2, L3, L5, S bands.

Only one frequency band at the time is available. The default frequency band assembly option is “L1”. For the L2, L3, L5, S frequency bands, evaluation kit implementation is provided by request.

NT1069-N8_FMC allows to process up to 8 RF channels: amplify, down-convert to a fixed Intermediate Frequency (IF) with subsequent additional filtering and digitization by 12 (or 14) bit ADC @100MHz. Each RF channel has individual RF input with active antenna supply option.

NT1069-N8_FMC features the FMC connector, which works as a compact electro-mechanical expansion interface for a daughter card to an FPGA board. Such flexibility with FMC is essential to enable developers to accelerate the development of their applications: Anti-jammer algorithms, Spoof-proof algorithms and others, and check it with the real-time GNSS signals.

NT1069-N8_FMC has embedded GNSS receivers, which provide the navigation solution in autonomous mode, as well as up-converter (modulator) which provides connection to the external (third-party) GNSS receiver.

 

TECHNICAL SPECIFICATIONS

Supported GNSS constellations
  • GPS + Galileo
  • GLONASS
  • BeiDou
  • IRNSS
  • QZSS
 –    C/A and P-code

–    Only one GNSS constellations variant is possible (optional)

 
Frequency band L1 (1530-1620 MHz), L2/L3/L5 (1150-1300 MHz),
S (2482-2502 MHz)		 L1 – default frequency band

L2/L3/L5/S –frequency bands by request

Only one frequency band variant is possible
IF bandwidth 30 MHz
Noise figure 5.8 dB – RF AGC and IF AGC = max gain

– 1575.42 MHz test frequency
1 dB compression point -13 dBm 1575.42 MHz test frequency
Total Gain 53 dB
Channel Isolation >65 dB
Input VSWR < 2
RF AGC Range 10.5 dB
IF AGC Range 46 dB
Number of receiver RF channels up to 8
Data interfaces FMC HPC, USB
On-board GNSS receiver Yes Ublox MAX-M8W-0
On-board up-converter L1 (1530-1620 MHz), L2/L3/L5 (1150-1300 MHz) Only one GNSS constellation is possible
Supply voltage 15 V typical
Power consumption: 16 W typical
Dimensions 227 х 182 х 21 mm
Weight 1144 g
Operating temperature -40°C …+ 65°C
GNSS External Active Antenna Requirements:
Antenna voltage supply 5 V
Maximum current 100 mA
LNA Gain Range (minus signal loss) 20…35 dB
NOTE:

The external GNSS antenna(s) array must have a clear line of sight to the sky during operation. Install the antenna array with a clear view of the sky and clear of obstructions such as building, trees etc.

Rooftops, free from other structures with a direct view of the horizon, usually make good places to install. This clear view allows antenna array to track the maximum number of satellites during the day.

Don’t install GNSS antenna array near the windows of the building or indoors. When installing the GNSS antenna array, choose a location where the antenna array will not be covered by drifting snow or accumulated snow. It must not be covered with leaves or placed in a position where it could be blocked.

Avoid placing the GNSS antenna array in close proximity to broadcast antennas, metal surfaces or powerful transmitters. Try to choose a “lightning-protected zone”.

When installing GNSS antennas arrays separate them by at least 1 m.

Poor visibility may result in a position shift or an increase in Time To First Fix (TTFF).

Incorrect antenna array placement can influence on navigation solution. Good visibility of the sky is an important condition for accurate positioning and confident reception.

All specifications are at the ambient temperature of 25 °C

Learn more about IC NT1069