USB-powered CFD (Constant Fraction Discriminator Module)

Portable and compact CFD module that produces precise digital time stamps for input signals with variable amplitudes but a consistent rise time.

KEY SPECS

– USB Type-C power
– Dimensions: 87×87×40 mm
– Single channel quad-output module
– x2 Digital LVTTL @ 50 Ohm
– x2 LVDS output
– Discrimination for positive and negative input signals
– Rise time: <500 ps
– Jitter: <15 ps
– Max repetition rate: 140 MHz
– Min input detectable signal: +/- 100 mV
– B2C or B2B selling options

Included in the price

– CFD Module
– Physical delay line SMA coaxial cable
– USB Type-C power cable

Need help in setting up a CFD? Download the PDF manual here:

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    MAIN FUNCTION

    MAIN FEATURES

    Our constant fraction discriminator (CFD) is a compact and high-performance device that seamlessly converts analog signals (such as those from a PMT or the sync out of a pulsed laser source) into digital ones. Extremely user-friendly, this module easily integrates with various microscopy or spectroscopy setups. Additionally, it is now USB-powered for enhanced convenience and flexibility.

    Compactness and portability

    With dimensions of just 87x87x40 mm and powered by USB, our CFD offers unparalleled portability and flexibility. It can be powered by a cellphone charger or even a power bank, making it incredibly versatile for various applications.

    Single channel module

    FLIM LABS produces CFD modules with a flexible single-channel format; this feature is key for overcoming the inconvenience of other bulky modules that fit on lab-racks only.

    Quad output

    Our CFD module offers exceptional functionality, providing 4 digital twin outputs. Two outputs are available via SMA connectors at 2.5V with a 50-ohm impedance, ensuring seamless integration into existing setups. Additionally, two extra outputs are accessible through USB Type-C ports, implementing LVDS for effortless plug-and-play connections with our FLIM Data Acquisition Card.

    Utilizing FLIMLABS’ proprietary protocol, these connections can be made using standard USB Type-C cables and connectors. This additional output capability enhances adaptability in various laboratory scenarios, offering increased versatility and convenience.

    Signal polarity

    Our CFD can handle both positive or negative input signals thanks to the polarity switch present on the module.

    Output pulse width

    The output pulse duration can be shaped by simply twisting the dedicated potentiometer level. Values range from a minimum of 5ns to a maximum of 250ns.

    Physical Delay Line

    The presence of a physical delay line allows for improved flexibility in matching the delay line length with the rising time of the input signal. This ensures an optimal digital discrimination.

    USE CASES

    MAIN FEATURES

    Our constant fraction discriminator (CFD) is a compact and high-performance device that seamlessly converts analog signals (such as those from a PMT or the sync out of a pulsed laser source) into digital ones. Extremely user-friendly, this module easily integrates with various microscopy or spectroscopy setups. Additionally, it is now USB-powered for enhanced convenience and flexibility.

    Compactness and portability

    With dimensions of just 87x87x40 mm and powered by USB, our CFD offers unparalleled portability and flexibility. It can be powered by a cellphone charger or even a power bank, making it incredibly versatile for various applications.

    Single channel module

    FLIM LABS produces CFD modules with a flexible single-channel format; this feature is key for overcoming the inconvenience of other bulky modules that fit on lab-racks only.

    Quad output

    Our CFD module offers exceptional functionality, providing 4 digital twin outputs. Two outputs are available via SMA connectors at 2.5V with a 50-ohm impedance, ensuring seamless integration into existing setups. Additionally, two extra outputs are accessible through USB Type-C ports, implementing LVDS for effortless plug-and-play connections with our FLIM Data Acquisition Card.

    Utilizing FLIMLABS’ proprietary protocol, these connections can be made using standard USB Type-C cables and connectors. This additional output capability enhances adaptability in various laboratory scenarios, offering increased versatility and convenience.

    Signal polarity

    Our CFD can handle both positive or negative input signals thanks to the polarity switch present on the module.

    Output pulse width

    The output pulse duration can be shaped by simply twisting the dedicated potentiometer level. Values range from a minimum of 5ns to a maximum of 250ns.

    Physical Delay Line

    The presence of a physical delay line allows for improved flexibility in matching the delay line length with the rising time of the input signal. This ensures an optimal digital discrimination.

    USE CASES

    FULL SPECS

    N. of input signals1
    N. of output signals4
    Connector typeSMA
    Input polarityPositive or negative signals
    Min input pulse width700ps
    Rise time<500ps
    Jitter<15ps
    Output pulse widthfrom 5ns to 250ns
    Max repetition rate140MHz
    Min input detectable signal+/- 100mV
    Max input amplitude5Vpp limited
    Outputs amplitude2.5V @ 50Ohm load over SMA connector
    LVDS over USB type-C connector
    Impedance50 Ohm
    Delay line lengthselectable with an external cable having a length based on input signal's rising-edge timing (1ns ~ 30 cm)
    Power supplyUSB powered via USB type-C connector
    Dimensions87×87x40 mm
    Weight225g

    For more information
    about the product,
    for asking us a quote
    or a demo unit,
    write us.

    We will answer you
    as soon as possible.

      For more information
      about the product,
      for asking us a quote
      or a demo unit,
      write us.

      We will answer you
      as soon as possible.