RF Front End IC

  • Home
  • /
  • Products
  • /
  • RF Front End IC And GNSS Module

NT1065

OVERVIEW

NT1065 is a four-channel RF Front-End IC for the reception of Global Navigation Satellite System (GNSS) signals (GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS) and also signals of satellite-based augmentation systems like OmniSTAR at all frequency bands in various combinations: L1, L2, L3, L5, E1, E5a, E5b, E6, B1, B2, B3 . Galileo E5 band as well as BeiDou B1, B2, B3 (phase 3) band can be obtained as entire signal with two channels fed by the same LO and then restored in digital domain to true complex data. As a benefit one can discover wide possibilities of improving the positioning accuracy down to centimeter range without taking RTK technique. Each setting, including output signal frequency bandwidth, AGC options, mirror channel suppression option, etc., can be set for every channel individually. NT1065 includes two fully independent frequency synthesizers. Channel#1 and channel#2 are supplied with LO signal generated in PLL “A” while PLL “B” is assigned for channels #3 and #4. For specific applications there is an option to feed all four channels with single LO source from PLL “A”. This powerful toolkit is accompanied with very simple and easy-to-use register map. All the functionality allows application of NT1065 in high precision GNSS based positioning, goniometric, driverless car systems and related branches

FEATURES

  • Single conversion superheterodyne receiver
  • 4 independent configurable channels, each includes preamplifier, image rejection mixer, IF filter, IFA, 2-bit ADC
  • Signal output options: analog differential output with two selectable voltage swings or 2-bit ADC digital output data
  • Signal bandwidth up to 31MHz supports GNSS high precision codes such as P-code in GPS
  • Dual adoptable AGC system (RF + IF) or programmable gain
  • High dynamic range with 1dB compression point of more than -30dBm
  • 2 independent fully integrated synthesizers with flexible LO and CLK frequencies selection (“A” and “B”)
  • Embedded temperature sensor
  • SPI interface with easy-to-use register 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)
  • 10x10mm QFN-88 package

NT1066

OVERVIEW

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.

FEATURES

Overall
  • 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

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 22MHz (up to 11MHz of IF BW)
  • Dual AGC system (RF + IF) or manually programmable gain
  • Wide dynamic range with 1dB compression point up to 0 dBm
  • Analog differential output with programmable thresholds or 2-bit ADC digital output with programmable output logic high level