Recently, Spectrum InstrumentaTIon has launched a new high-speed multi-channel digital converter based on the M2p platform and 59xx modules. The main chip uses Xilinx’s ArTIx-7 XCA75T FPGA. XCA75T FPGA is a medium-sized product of the 7 series ArTIx-7 low-end FPGA. It is based on TSMC’s 28nm process. It has 75,520 logic units on-chip and supports 16-channel 6.6GB/s transceivers. There are wide applications in end wireless backhaul. According to the company’s release, the M2p PCIe platform board will become the basis for all future products of the company. The initial 13 types of M2p.59xx digital boards can provide three different sampling rates, respectively 20, 40, 80 or 125M samples/sec. , With 1, 2, 4 or 8 16-bit analog input channels (each channel has an independent analog-to-digital conversion ADC), the new 59xx module series are equipped with one or two Mezzanine mezzanine modules. There is also a 1Gbyte onboard SDRAM that can store 512M samples (a few seconds of real-time storage of digital signals).
The modular design immediately created 20 new digitizers in the product line. Another Mezzanine mezzanine board called star-Hub allows you to synchronize up to sixteen M2p.59xx digitizer boards. Oliver Rovini, Chief Technology Officer of Spectrum InstrumentaTIon, said: "...the new unit will replace our existing 12, 14 and 16 bit modules, providing our existing customers with a simple upgrade path with many technological advantages." More products based on the M2p PCIe platform will be released next year. In addition to high-speed analog signal-to-digital converters, they may also include 1-4 channels of AWG (arbitrary waveform generator) and digital I/O boards. Target applications of the new digitizer board series include ultrasonic, lidar, radar, automotive and large-scale physical experiment environments.
The onboard Artix-7 FPGA can realize the PCIe Gen1 x4 interface of the M2p board, the mezzanine board interface, and a variety of intelligent acquisition modes, including multiple recording of segmented acquisition, gate sampling for specific time acquisition, and ABA mode combined with chart recorder. Fast acquisition mode. For the multiple recording mode of segmented acquisition, the sampling memory is divided into several equal-sized segments. Each time-stamped trigger event will fill a segment, and sampling between segments will stop. The number of segments is only limited by the memory, and there is no limit if the FIFO mode is used. For gate sampling, data is only written into the memory when the gate signal is valid. The gate signal can be another channel or external trigger input. The number of sampling gate segments is only limited by the sampling memory. If the FIFO mode is used, it is not limited by the main memory. The ABA mode combines fast event trigger sampling (B time base) and slow sampling rate sampling between triggers (A time base). The position of the trigger event is marked with a timestamp. Artix-7 FPGA also implements multiple trigger inputs, trigger outputs, status outputs, synchronized digital inputs, and time stamps for digitized signals.
Using fully programmable devices, especially Artix-7 FPGAs, Spectrum Instrumentation has developed a truly flexible platform that can meet any needs of the target market. The device's reprogrammable I/O can be connected to various analog-to-digital conversion ADC interfaces, and can easily create the digital-to-analog conversion DAC required by AWG mezzanine modules. The same is true for the PCIe x4 interface of the M2p board. The programmable logic of the device enables the company to develop various processing and control IP to adapt to a wide range of applications without changing the circuit components on the board.
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