Description

This reference design is a discrete RF sampling transceiver supporting instantaneous signal bandwidths up to 5GHz. The design utilizes -SEP (Space Enhanced Plastic) grade, radiation tolerant active devices designed for space applications. The receiver uses the ADC12DJ5200-SEP ADC (Analog-to-Digital Converter). The transmitter uses the DAC39RF10-SEP DAC (Digital-to-Analog Converter). The data converters support a variety of different JESD modes facilitating 1 or 2 output channels operating up to the lower part of X-band. The receiver includes the TRF0208-SEP active balun for transforming single-ended input to differential output. The transmitter includes the TRF0108-SEP active balun for transforming the differential output to single ended. The clocking design resides on a daughter-board that plugs into the top of the primary data converter board. The clock card includes the LMK04832-SEP for generating and distributing low frequency clock and reference signals to the synthesizer, data converters, and FPGA. The LMX2694-SEP RF synthesizer provides the 10GHz sample clock to the DAC and the 5GHz sample clock to the ADC. The power design resides on a daughter card that plugs into the bottom of the board and handles power distribution to all of the active devices on the board.