RF

The lowest power consuming integrated Ku-band downconverters

The TFF101xHN family of downconverters (PLL synthesizer/mixer/IF gain block) is for use in Low Noise Block (LNB) converters designed in a 10.7 GHz to 12.75 GHz Ku band satellite receiver systems. These Universal DVB-S compliant Ku-band downconvertors consume about 50 % less current (52 mA) than other integrated solutions. Additionally they are fully integrated and RF tested, which results in significantly decreased manufacturing time. Stability of the local oscillator is guaranteed which improves overall system reliability over temperature and time, and eliminates the need for manual alignment during production.

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Key features and benefits

  • Fully RF tested device lowers manufacturing time
  • Consumes about 50 % less current then other integrated solutions:
    • ICC = 52 mA
  • Integrated solution simplifies design
  • Stable LO over temperature and time
  • Multiple gain variants improve flexibility on different platforms:
    • TFF1014HN 36 dB, TFF1015HN 39 dB, TFF1017HN 42 dB, TFF1018HN 45 dB
  • Compliant to Universal DVB-S (Intelsat and Astra)
  • Small real estate on PCB:
    • Package: DHVQFN16 (2.5 x 3.5 x 0.85 mm)
    • Minimum count of only 7 external components
    • No inductors necessary
  • Single supply domain of 5 V ± 10 %
  • Requires low cost fundamental crystal:
    • Only one 25 MHz crystal
  • High Po(1dB) and linearity
    • Po(1dB) = 6 dBm
    • IP3O = 15 dBm
  • Flat gain over frequency (<2 dBpp)
  • Matched input and output
  • Phase Noise typical 1.5 deg RMS
    • 10 kHz to 13 MHz integration bandwidth

Key applications

LNB is the abbreviation for Low Noise Block-downconverter. It is the device at the front of a parabolic satellite dish antenna that receives the very low-level microwave signal from the satellite, amplifies it, changes the signals to a lower frequency band and sends them down the cable to the indoor receiver. In the LNB our TFF101xHN family is used in the down conversion of the microwave signal received from the satellite.

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Descriptive summary

These products – the integrated downconverters TFF101xHN, the wideband transistors BFU710F/730F for LNA and mixer functionality, and the BGA28xx series of IF MMICs – are the most recent additions to NXP’s leading portfolio for satellite LNB. They join the other discrete products, including oscillators, amplifiers, and switches, to provide complete coverage for all LNB architectures.

Products

Type numberDescriptionStatusQuick access
TFF1014HNIntegrated mixer oscillator PLL for satellite LNB Download datasheet
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TFF1015HNIntegrated mixer oscillator PLL for satellite LNB Download datasheet
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TFF1017HNIntegrated mixer oscillator PLL for satellite LNB Download datasheet
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TFF1018HNIntegrated mixer oscillator PLL for satellite LNB Download datasheet
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