Tunable Filter by Fraunhofer (2 more products)

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TBPF-430-890 Image

The TBPF-430-890 from Fraunhofer is a Digitally Tuneable Bandpass Filter that operates from 480 to 890 MHz. It consists of three coupled resonators and a digitally tunable capacitor that allows the centre frequency to be tuned with a resolution of 5 bits. The filter has an insertion loss of less than 5.5 dB, an OIP3 of 39 dBm and provides an attenuation of more than 55 dB in the stopband. It has a switching speed of 12 μs and a start-up time of 100 μs. The filter covers frequency range including the UHF-band within its TV white spaces (TVWS) and the LTE-800 frequency band. It can handle an input power of up to 33 dBm and requires a supply voltage of 3.3 V.

The filter is available as a surface-mount solderable module that measures 14 x 15 mm with a 3-wire SPI interface. It is suitable for RF harmonic filtering applications such as multi-band receiver/transmitter, multi-standard transceiver, software defined radio (SDR), cognitive radio and frequency monitoring.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
  • Description
    Digitally Tunable Bandpass Filter from 480 to 890 MHz

General Parameters

  • Application
  • Configuration
    Band Pass Filter
  • Type
    Digitally Controlled
  • Frequency
    450 to 970 MHz
  • Tunable Frequency
    460 MHz
  • Nominal Bandwidth %
  • Rejection
    27.2 to 53.6 dB
  • P1dB
    30 to 33 dBm
  • OIP3
    32 to 39 dBm
  • Insertion Loss
    3.7 to 5.5 dB
  • Supply Voltage
    2.3 to 3.6 V
  • Supply Current
    420 to 600 uA
  • Impedance
    50 Ohms
  • Interface
    3-wire serial port interface (SPI)
  • Package Type
    Surface Mount
  • Operating Temperature
    -40 to 85 Degree C
  • ROHS
  • Grade
  • Note
    Tunning Range : 460 MHz, Switching time : 12 us, Start-up time : 100 us

Technical Documents