EB750SOT343BA FP750SOT343 1.85GHz LNA EVALUATION BOARD FEATURES • • • • • 19 dBm Output Power 17 dB Small Signal Gain 0.8 dB Noise Figure 37 dBm IP3 Bias 3.3V, 110mA DESCRIPTION AND APPLICATIONS This evaluation board is a single-ended, dual biased, power amplifier. It is reactively matched at a frequency of 1.85 GHz. The active device is a Filtronic FP750SOT343; a double-heterojunction, 750 µm gate periphery PHEMT. The connectors are SMA jacks soldered to a 30 mil thick FR4 PC Board. Both RF ports are DC-decoupled. Biasing can be applied through test clips (E-Z hooks) at the bias vias on the bottom of the board. A negative gate voltage is required for current limiting. Ground connection should be established prior to the gate and drain bias connections. This board is thin and flexible, so caution should be exercised when connecting it to coaxial cables. SCHEMATIC -Vg FP750SOT343 EVAL Board Schematic 0.01uF @ 1.85GHz 15pF Vd 1.0uF 0.01uF 15pF 200 Ohm 33pF RF IN 22 nH L1 22 nH L2 C2 33pF RF OUT FSS • Santa Clara Operations • 3251 Olcott Street, Santa Clara, CA 95054 408.988.1331 • www.filss.com • [email protected]