4-CHANNEL GPS/ GLONASS/ GALILEO/ BEIDOU/ NAVIC/ QZSS L1/L2/L3/L5 BANDS RF FRONT-END IC
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4-CHANNEL GPS/ GLONASS/ GALILEO/ BEIDOU/ NAVIC/ QZSS L1/L2/L3/L5 BANDS RF FRONT-END IC 1065-scheme
4-CHANNEL GPS/ GLONASS/ GALILEO/ BEIDOU/ NAVIC/ QZSS L1/L2/L3/L5 BANDS RF FRONT-END IC 1065 shema

NT1065 4-Channel RF Front-End IC

  • 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
Datasheet
The NT1065 chip has reached the end of its production cycle, and the compatible pin-to-pin replacement is now the NT1068 chip. More information can be found at: NT1068

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

APPLICATION

GNSS-based positioning systems
Goniometric systems
In-vehicle navigation systems
Driverless cars
Professional drones

RELATED LINKS

WHITE PAPERS

1. https://www.ion.org/publications/abstract.cfm?articleID=14583
2. https://www.ion.org/publications/abstract.cfm?articleID=14754

INDEPENDENT REVIEWS

1. http://michelebavaro.blogspot.com.by/2016/01/nt1065-review.html

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