NT1066 Multi-Channel RF Front-End IC

  • 4 independent, fully customizable IQ channels
  • 4 fractional-N PLLs with fully integrated VCOs and autotuning system
  • Clock output for correlator with programmable frequency, amplitude and DC level
  • Pass-through TCXO reference signal output
  • Internal or external sampling frequency for 2-bit ADCs
  • 4-wire SPI interface with user friendly registers map
  • Individual status indicators of main subsystems (available in SPI registers) and cumulative status indicator (AOK, available both as a separate pin and in SPI registers)
  • Embedded temperature sensor
  • 12×12mm QFN108 package


NT1066 is a 4-channel RF Front-End IC (3 wideband IQ and 1 narrowband IQ) that covers all GNSS (GLONASS, GPS, Galileo, BeiDou, QZSS, NavIC) signals at all frequency bands. It makes possible to benefit from all the advantages of acquiring multiple system simultaneously. Channels “A”, “B” and “C” are designed with single conversion low-IF architecture, individually programmable and intended to receive L1, E1, B1, E6, B3, L2, L3, B2, L5, E5 in various combinations. IQ and image suppression modes are available, other options can be discovered in feature list. Channel “D” is dedicated to operate in S band or L2, L3, L5 bands of GNSS and has zero-IF architecture. S and L5 bands combining lets user to eliminate effectively ionospheric distortion utilizing large signal base. As alternative, channel “D” can be ‘on a fly’ software-reconfigured to receive real-time corrections data transmitted over FM, VHF and UHF bands.

NT1066 does also integrate 4 fractional-N synthesizers that have the common reference frequency input. Wide list of attractive features and high level of customization make NT1066 capable to meet a demand of researchers and OEM developers in special applications: high precision positioning, goniometric, driverless car systems, professional drones and related areas.

Channels “A”, “B” and “C” feature list:

− Single conversion super heterodyne architecture for L1, L2, L3, L5 bands of GNSS signals reception

− Active antenna detector system including short-protection circuit

− Tunable signal bandwidth up to 60MHz (up to 30MHz of IF BW with autocalibration system)

− IF AGC system or manually programmable gain

− Configurable output type: IQ or real with separate upper and lower sideband

− Analog differential output or 2-bit ADC digital output with programmable output logic high level

Channel “D” feature list:

− Direct conversion architecture with IQ data output for S band or L2, L3, L5 bands of GNSS signals reception or FM 65…110 MHz, VHF 160…240 MHz, UHF 470…862 MHz bands for DGPS data downloading

− Tunable signal bandwidth up to 20MHz (up to 10MHz of IF BW)

− Dual AGC system (RF + IF) or manually programmable gain

− Wide dynamic range with 1dB compression point up to +3 dBm @ S band

− Analog differential output with programmable thresholds or 2-bit ADC digital output with programmable output logic high level