Portfolio of work : High Speed Acoustic AWG and Signal Generator equipped with Xilinx FPGA
The PCI16DAC8 is an eight-channel high frequency (HF) signal generator in half-length half-height PCIe form factor. The card provides eight fully differential analog output channels, which are sourced from synchronous 16-bit DACs which may be clocked at up to 200MHz. The analog output is fixed at 20Vp-p differential for full scale digital inputs, and includes two pole reconstruction filtering. All other processing is performed using the on-board FPGA resources. The PCI16DAC8 includes a high precision frequency synthesizer which allows the user to generate a sample clock of virtually any frequency. It can also accept an external clock for frequency coherent synchronization to peripheral equipment. When using the PCI16DAC8, data acquisition may be performed in either loop, pulse, or continuous mode. In pulse mode a specific number of samples are converted following a trigger event. In loop mode a specified buffer (up to 16M samples) in local memory is repetitively fed to the converters. Continuous mode allows the user to feed data from the host system over the PCIe interface. The amount data acquired is virtually unlimited, but the data rate will be limited by the bandwidth of the PCIe connection. Conversion may be initiated and terminated by software commands, or by the external trigger/gate input.