SZA-5044
SZA-5044Z
RoHS Compliant
& GreenPackage
Product Description
Pb
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 ampli-
fier is made with InGaP on GaAs device technology and fabri-
cated with MOCVD for an ideal combination of low cost and
high reliability. This product is specifically designed as a final
or driver stage for 802.11a equipment in the 4.9 - 5.9 GHz
band for a 5V supply. Optimized on-chip impedance matching
circuitry provides a 50W nominal RF input impedance. A sin-
gle external output matching circuit covers the entire 4.9-
5.9GHz band simultaneously. The external output match
allows for load line optimization for other applications or opti-
mized performance over narrower bands. This product is
available in a RoHS Compliant and Green package with matte
tin finish, designated by the “Z” package suffix.
4.9 – 5.9 GHz 5V Power Amplifier
4mm x 4mm QFN Package
Product Features
• 802.11a 54Mb/s Class AB Performance
Pout = 22dBm @ 3% EVM, 5V, 343mA
• High Gain = 33dB
• Output Return Loss < -11dB for Linear Tune
• On-chip Output Power Detector
• P1dB = 30dBm @ 5V
• Simultaneous 4.9- 5.9GHz Performance
• Robust - Survives RF Input Power = +15dBm
• Power up/down control < 1ms, Vpc 2.9V to 5V
Functional Block Diagram
Vcc
Power
Up/Down
Control
Active
Bias
Active
Bias
Active
Bias
RFIN
RFOUT
Applications
• 802.11a WLAN, OFDM
• 5.8GHz ISM Band, 802.16 WiMAX
Power Detector
Vout
Key Specifications
Parameters: Test Conditions, App circuit page 4
Z0 = 50W, VCC = 5.0V, Icq = 270mA, TBP = 25ºC
Symbol
Unit
Min.
Typ.
Max.
fO
Frequency of Operation
MHz
4900
5900
Output Power at 1dB Compression – 5.15 GHz
Output Power at 1dB Compression – 5.875 GHz
Gain at 4.9 GHz
30.2
29
P1dB
dBm
27.5
30.7
dB
dB
dB
32.7
33.0
27.7
21
34.7
29.7
S21
Gain at 5.15 GHz
Gain at 5.875 GHz
25.7
Output power at 3% EVM 802.11a 54Mb/s - 5.15GHz
Output Power at 3% EVM 802.11a 54Mb/s - 5.875GHz
Noise Figure at 5.875 GHz
Pout
dBm
22
NF
IM3
dB
6.3
Third Order Intermod at 18dBm per tone - 5.875GHz
Worst Case Input Return Loss 4.9-5.875GHz
Worst Case Output Return Loss 4.9-5.875GHz
Output Voltage Range for Pout=10dBm to 26dBm
Vcc Quiescent Current
dBc
-39
-35
IRL
8.6
9.3
11.6
12.3
0.8 to 1.9
270
1.7
dB
ORL
Vdet Range
Icq
V
mA
mA
uA
230
310
100
IVPC
Power Up Control Current, Vpc=5V ( IVPC1 + IVPC2 + IVPC3
Off Vcc Leakage Current Vpc=0V
)
ILEAK
Rth, j-l
8
Thermal Resistance (junction - lead)
ºC/W
24
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for ina ccuracies 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
1
http://www.sirenza.com
EDS-103585 Rev H
