Kun-Chi QT1144 self-developed technology is a DC coupled programmable amplifier has both single and support high-speed data acquisition card bipolar input wideband signal; FPGA board includes a real-time signal processing, these characteristics make QT1144 be laser radar, optical photomultiplier tube and optical fiber sensing applications in areas such as over the signal acquisition and analysis tools. QT1144 provides fast PCI Express 2.0 x8 data transmission interface, a combination of hardware and flexible configuration, the best balance between performance, power consumption and cost, particularly suitable for OEM applications. 
FIG 1 QT1144 physical map
Features:
l maximum support 4-channel synchronous acquisition
l 250MSPS highest sampling rate
16bit / 14bit conversion accuracy
l Support AC / DC coupling, 50 ohm input impedance
l programmable gain control gear support 4
l onboard 4GB DDR3 memory
supports external trigger input or output, support for advanced triggering
supports multiple user-defined extension IO
PCIex8 Gen2 data transmission interface, continuous transfer rate of 2.8GB / S
FPGA supports user-defined logic development (option)
advantages :
l support DC bias control, improve the single, bipolar high-frequency pulse signal acquisition accuracy;
l by flash PCIe bus real-time transmission of data collection, in particular for the scanning system to optimize the timing upload DMA.
flexible configuration options.
provide an open QTex logic development platform, users can quickly integrate application modules.
deep onboard memory.
shorten development time and faster time to market.
can be custom-developed advanced triggering functions (customization).
can meet real-time signal processing module integrated art OEM applications (customization): The accumulation, peak detection, FFT, etc., and the DDC.
Applications
radar acquisition system
LIDAR system
optical fiber sensing system
photomultiplier acquisition system
scan acquisition system
LLS
flexible configuration scheme
optional analog front-end AC, DC and programmable gain mode, to meet the different sensors and inputs analog signal requirements.
sampling rate, sampling accuracy and to select a variety of combinations of channels, OEM customers can get the best performance - cost balance.
FPGA built-in real-time signal processing module and the user can customize the logic functions so that users can easily and quickly complete the application integration.
extended GPIO function, users can directly use these GPIO through FPGA programming, or they can be used with advanced triggering, capture cards have a special ability to trigger.
Optional advanced triggering capabilities (customization), directly connected to the GPIO by extending the FPGA, so that the card includes a special trigger acquisition capability, such as support for XY scanning trigger bow navigation radar signal / orientation signals, and the encoder triggers GPS time stamp and other advanced triggering functions.
optional FPGA scale, QT1144 can be configured in three different sizes FPGA models for users to choose: XC7K160T, XC7K325T or XC7K410T.
Hardware
QT1144 provided by the acquisition card analog input signal conditioning front end module, a clock management module, the ADC module includes a data stream processing, trigger control, the PCIe interface function of the FPGA module and bulk onboard DRAM and other components. System block diagram shown in FIG. 2. 
System block diagram of FIG. 2 QT1144
QT1144 4GB DDR3 standard memory supports concurrent read and write the various data acquisition modes, with ultra-low jitter clock signal generation module with high stability and low phase noise clock source to ensure acquisition clock performance. Reference input has an internal, external reference input, three kinds of external sample clock input clock mode. The front panel has 4 Universal the IO (GPIO) can be used, can separately control each GPIO direction. The user can customize the use of these IO through programming; while these IO by software, may be used as the trigger signal input and output. QT1144 20 also has at the rear universal GPIO board. These are connected by double universal 2.00mm connected directly to the FPGA, and simultaneously outputs 2.5V or 3.3V supply, user-level conversion. QT1144 also supports ring buffer, trigger several times, unlimited collection point, ABA acquisition and other acquisition modes. Having a software trigger, the trigger channel, external trigger, the outer input analog trigger (the TRIG), and other trigger modes.
Software
QT1140V2 software development kit you can use Visual C ++, Visual Studio 201x, LabWindows / CVI, Python and Matlab secondary development.
Beijing Chi-kun Technology Co., Ltd. is focused on the acquisition and intelligent monitoring of high-speed data field of high-tech companies. The company began operations in 2008, is located in Haidian District, Beijing Zhongguancun Science and Technology Park. Kun-Chi deep high speed data acquisition field for many years, the market for the customers and provide high-speed analog to digital converter module and related products easy to use, provide a large number of high-speed FPGA-based AD, DA cards, and processing, transmission, storage and other modules. Currently customer service include: application fields such as aviation, aerospace, shipbuilding, nuclear physics, military electronics and other industries, radar, communications, high-energy physics, electronic warfare, optoelectronics, and other types of ultrasound.