CDMA_LNA_designLNA design for CDMA front end by Jarek Lucek Market Application Engineer and Robbin Damen, Development/Application Engineer. Philips Semiconductors Abstract: This article will step the reader through a practical design of a front end 900 MHz and 1.9 GHz CDMA Low Noise Amplifier. The main emphasis will be put on Noise Figure, IP3, Gain and power dissipation trade offs. The main topics of the article will include the following: Bias design Circuit stabilization Noise optimization Linearity optimization Load pull for gain and IP3 trade off improvement Complete circuit characterization The LNA design will be carried out with a discrete, 5th generation silicon transistor from Philips Semiconductors. A circuit solution will be presented along with complete measured performance that is re……