The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions.
Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without
notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product
for use in life-support devices and/or systems.
Copyright 2002 Sirenza Microdevices, Inc. All worldwide rights reserved.
303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC http://www.sirenza.com
1 EDS-103989 Rev D
Preliminary
Sirenza Microdevices’ SZA-3044 is a high linearity 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 or driver stage for 802.16 equipment in
the 3.3-3.8 GHz bands. It can run from a 3V to 6V supply.
Optimized on-chip impedance matching circuitry provides a
50Ω nominal RF input impedance. The external output
match and bias adjustability allows load line optimization
for other applications or over narrower bands. It features an
output power detector, on/off power control and high RF
overdrive robustness. This product is available in a RoHS
Compliant and Green package with matte tin finish, desig-
nated by the “Z” package suffix.
Key Specifications
Symbol Parameters: Test Conditions, App circuit page 6
Z0 = 50Ω, VCC = 5.0V, Iq = 220mA, TBP = 30ºC Unit Min. Typ. Max.
fOFrequency of Operation MHz 2700 3800
P1dB Output Power at 1d B Co mpression – 3.3GHz dBm 29.5 31.0
Output Power at 1dB Compression – 3.6GHz 28.5 30.0
S21 Small Signal Gain – 3.4GHz dB 23 25 27
Small Signal Gain – 3.6GHz 22 24 26
Pout Output power at 2.5% EVM 802. 11a 54Mb/s - 3.4GHz dBm 24
IM3 Third Order Suppression (Pout=20dBm per tone) - 3.6GHz dBc -40 -37
NF Noise Figure at 3.6 GHz dB 5.0
IRL Worst Case Input Return Loss 3.3-3.8GHz dB 12 15
ORL Worst Case Output Return Loss 3.3-3.6GHz 7 10
Vdet Range Output Voltage Range for Pout=+15dBm to +30dBm V 0.9 to 2.1
Icq Quiescent Current (Vcc = 5V) mA 185 220 255
IVPC Power Up Control Current, Vpc=5V, ( IVPC1 + IVPC2 ) mA 2.7
ILEAK Off Vcc Leakage Current Vpc=0V uA 10 100
Rth, j-l Thermal Resistance (junction - lead) ºC/W 22
Functional Block Diagram
SZA-3044 / SZA-3044Z
2.7-3.8GHz 5V 1W Power Amplifier
Product Features
Applications
•P1dB = 31dBm @ 5V
•802.11 a 54Mb/s 2.5% EVM Performance
Pout = 24dBm, Vcc=5V, 340mA, PAE 14.5%
Pout = 25dBm, Vcc=6V, 365mA, PAE 14.5%
•On-chip Output Power Detector
•Robust - Survives RF Input Power = +15dBm
•On Chip ESD Protection Class 2 (2000V)
•Power up/down control < 1µs
•Pin compatible with SZA-2044 and SZA-5044
•802.16 WiMAX Driver or Output St age
•Fixed Wireless, WLL
Product Description
4mm x 4mm QFN Package
RFIN RFOUT
Vcc
Power Detector Vout
Active
Bias Active
Bias
Power
Up/Down
Control
Pb
RoHS Compliant
& PackageGreen