Document
Product Description
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, designated by the “Z” package suffix.
SZA-3044 SZA-3044Z
Pb
RoHS Compliant & Green Package
2.7-3.8GHz 5V 1W Power Amplifier
4mm x 4mm QFN Package
Product Features
• •
Functional Block Diagram
Vcc Power Up/Down Control
P1dB = 31dBm @ 5V 802.11a 54Mb/s 2.5% EVM Performance Pout = 24dBm, Vcc=5V, 340mA, PAE 14.5% Pout = 25dBm, Vcc=6V, 365mA, PAE 14.5%
Active Bias
Active Bias
• • • • •
RFOUT
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
RFIN
www.DataSheet4U.com
Applications
Power Detector Vout
• •
802.16 WiMAX Driver or Output Stage Fixed Wireless, WLL
Key Specifications
Symbol fO P1dB S21 Pout IM3 NF IRL ORL Vdet Range Icq IVPC ILEAK Rth, j-l Parameters: Test Conditions, App circuit page 6 Z0 = 50Ω, VCC = 5.0V, Iq = 205mA, TBP = 30ºC Frequency of Operation Output Power at 1dB Compression – 3.3GHz Output Power at 1dB Compression – 3.6GHz Small Signal Gain – 3.4GHz Small Signal Gain – 3.6GHz Output power at 2.5% EVM 802.11a 54Mb/s - 3.4GHz Third Order Suppression (Pout=20dBm per tone) - 3.6GHz Noise Figure at 3.6 GHz Worst Case Input Return Loss 3.3-3.8GHz Worst Case Output Return Loss 3.3-3.6GHz Output Voltage Range for Pout=+15dBm to +30dBm Quiescent Current (Vcc = 5V) Power Up Control Current, Vpc=5V, ( IVPC1 + IVPC2 ) Off Vcc Leakage Current Vpc=0V Thermal Resistance (junction - lead) Unit MHz dBm Min. 2700 29.5 28.5 22 22 31.0 30.0 24 24 24 -38.5 5.0 12 7 15 10 0.9 to 2.1 170 205 2.7 10 22 100 240 -35.5 26 26 Typ. Max. 3800
dB dBm dBc dB dB V mA mA uA ºC/W
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 2006 Sirenza Microdevices, Inc. All worldwide rights reserved.
303 South Technology Court Broomfield, CO 80021
Phone: (800) SMI-MMIC 1
http://www.sirenza.com EDS-103989 Rev E
SZA-3044 2.7-3.8 GHz 5V Power Amp
Pin Out Description
Pin # 1,2,4,5,7, 9,11,13,1 5,17,19 6 Function N/C Description These are unused pins and not wired inside the package. They may be grounded or connected to adjacent pins. VPC1 is the bias control pin for the stage 1 active bias circuit. An external series resistor is required for proper setting of bias levels. Refer to the evaluation board schematic for resistor value. To prevent potential damage, do not apply voltage to this pin that is +1V greater than voltage applied to pin 20 (Vbias) unless Vpc supply current capability is less than 10 mA. VPC2 is the bias control pin for the stage 2 active bias circuit. An external series resistor is required for proper setting of bias levels. Refer to the evaluation board schematic for resistor value. To prevent potential damage, do not apply voltage to this pin that is +1V greater than voltage applied to pin 20 (Vbias) unless Vpc supply current capability is less than 10 mA. Output power detector voltage. Load with > 10K ohms for best performance RF input pin. This is DC grounded internal to the IC. Do not apply voltage to this pin. RF output pin. This is also another connection to the 2nd stage collector. 2nd stage collector bias pin. Apply 3.0 to 5.0V to this pin. 1st stage collector bias pin. Apply 3.0 to 5.0V to this pin. Active bias network VCC. Apply 3.0 to 5.0V to this pin. Exposed area on the bottom side of the package needs to be soldered to the ground plane of the board for optimum thermal and RF performance. Several vias should be located under the EPAD as shown in the recommended land pattern (page 5).
VPC1
8 10 3 12,14 16 18 20 EPAD
VPC2 Vdet RFIN RFOUT .