SZA-5044

www.DataSheet4U.com Preliminary Product Description Sirenza Microdevices’ SZA-5044 is a high efficiency class AB Heterojunction Bipolar Transistor (HBT) amplifier housed in a low-cost surface-mountable plastic package. This HBT amplifier is made with InGaP on GaAs device technology and fabricated with MOCVD for an ideal combination of low cost and high reliability. This product is specifically designed as a final stage for 802.11a equipment in the 4.9 - 5.9 GHz band for a 5V supply. Optimized on-chip impedance matching circuitry provides a 50Ω nominal RF input impedance. A single external output matching circuit covers the entire 4.95.9GHz band simultaneously. The external output match allows for load line optimization for other applications or optimized performance over narrower bands. SZA-5044 4.9 – 5.9 GHz 5V Power Amplifier 4mm x 4mm QFN Package Product Features 802.11a 54Mb/s Class AB Performance Pout = 21.5dBm @ 3% EVM, 5V, 310mA High Gain = 28dB Output Return Loss < -11dB for Linear Tune On-chip Output Power Detector P1dB = 29dBm @ 5V Simultaneous 4.9- 5.9GHz Performance Robust - Survives RF Input Power = +15dBm Power up/down control < 1µs, Vpc 2.9V to 5V Functional Block Diagram Vcc Pow er Up/Dow n Control Activ e Bias Activ e Bias Activ e Bias RFIN RFOUT Applications Pow er Detector Vout Key Specifications Symbol fO P1dB S21 Pout NF IRL ORL Vdet Range Icq IVPC Rth, j-l Parameters: Test Conditions, App circuit page 4 Z0 = 50Ω, VCC = 5.0V...