An Analogue CMOS Front-End for Terrestrial and Satellite MAC Decoding

This paper describes an analogue CMOS front-end for a fully integrated D2MAC decoder, suitable for terrestrial as well as satellite delivered signals. The complete subsytem incorporates many linear and non-linear analogue functions, including amplitude measuring, AGC, clamping, data slicing, clock recovery and A/D conversion for the MAC signal processing. The chip is fabricated in 1u CMOS, and operates from a single 5V supply.