Philips Semiconductors is dedicated to playing a major role in thewireless communication market. Key to this goal is Philips’commitment for design assistance at all levels. This is the purposeof the SA601/SA606 combo-board. The SA601 is a combined RFamplifier and mixer designed for high-performance low-powercommunication systems from 800-1200MHz. The SA606 is alow-voltage high performance monolithic FM IF system that, whencombined with the SA601, results in a high performance doubledown-conversion FM receiver. To better support this type ofapplication, Philips has combined the SA601 and SA606 ICs onto asingle board which highlights how well the SA601 and the SA606work together. This application note explains how to overcomemany of the technical problems that might arise, and shows how toachieve the best possible performance from the SA601 and SA606.Test results are also included.