Product Description
SPA-2118
Sirenza Microdevices’ SPA-2118 is a high efficiency GaAs
Heterojunction Bipolar Transistor (HBT) amplifier housed in
a low-cost surface-mountable plastic package. These HBT
amplifiers are fabricated using molecular beam epitaxial
growth technology which produces reliable and consistent
performance from wafer to wafer and lot to lot.
850 MHz 1 Watt Power Amplifier
with Active Bias
This product is specifically designed for use as a driver
amplifier for infrastructure equipment in the 850 MHz band.
Its high linearity makes it an ideal choice for multi-carrier and
digital applications.
Product Features
•High Linearity Performance:
+20.7 dBm IS-95 CDMA Channel Power
at -55 dBc ACP
+47 dBm typ. OIP3
VC1
• On-chip Active Bias Control
Active
VBIAS
•High Gain: 33 dB Typ.
Bias
RFOUT/
•Patented High Reliability GaAsHBT Technology
• Surface-Mountable Plastic Package
VC2
RFIN
VPC2
Applications
• IS-95 CDMA Systems
• Multi-Carrier Applications
• AMPS, ISM Applications
Parameters: Test Conditions:
Symbol
Units
Min.
Typ.
Max.
Z0 = 50 Ohms Temp = 25ºC, VCC= 5.0V
f0
Frequency of Operation
MHz
dBm
810
900
960
Output Power at 1dB Compression
29.0
P1dB
Adjacent Channel Power
ACP
dBc
-55.0
-52.0
34.5
IS-95 @880 MHz, ±885 KHz offset, POUT=20.7 dBm
Small Signal Gain, 880 MHz
Input VSWR
dB
-
31.5
33.0
S21
VSWR
1.5:1
Output Third Order Intercept Point
Power out per tone = +14 dBm
OIP3
NF
dBm
dB
47.0
5.0
Noise Figure
Device Current
ICC
mA
360
400
425
I
BIAS = 10mA, IC1 = 70mA, IC2 = 320mA
VCC
Device Voltage
V
4.75
5.0
31
5.25
Rth j-l
Thermal Resistance (junction - lead), TL = 85ºC
ºC/W
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or omissions.
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.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-102012 Rev F