Using e2v´s high speed Space grade ADC and DAC to achieve direct conversion of L band signals

This paper will describe the architecture and results obtained with two new e2v products designed for Space grade applications which open up new design possibilities for direct conversion of signals to and from L band. The 10 bit 1.5GS/s EV10AS180 Analog to Digital converter (ADC) has a wide bandwidth extending into the L band and an integrated De-Multiplexor (DMUX) The device has a low power consumption of 1.7W making it attractive for satellite systems The 12 bit 3GS/s Digital to Analog Converter (DAC), EV12DS130 has a Spurious Free Dynamic Range (SFDR) performance exceeding 70dB and with its instantaneous bandwidth of 6GHz can offer systems designers the ability to eliminate frequency up conversion stages in L and C band and even up to S band. The paper will also discuss some techniques required for use of these components such as choice of clock driver, PCB design and FPGA interface design and some potential application schemes will be highlighted.