SPA2118Z
850MHz
1
Watt Power
Amplifier with
Active Bias
SPA2118Z
850MHz 1 WATT POWER AMPLIFIER WITH
ACTIVE BIAS
Package: Exposed Pad SOIC-8
Product Description
Features
RFMD’s SPA2118Z is a high efficiency GaAs Heterojunction Bipolar Tran-
sistor (HBT) amplifier housed in a low-cost surface-mountable plastic
package. These HBT amplifiers are fabricated using molecular beam epi-
taxial growth technology which produces reliable and consistent perfor-
mance from wafer to wafer and lot to lot. This product is specifically
designed for use as a driver amplifier for infrastructure equipment in the
850MHz band. Its high linearity makes it an ideal choice for multi-carrier
and digital applications.
High Linearity Performance
+20.7dBm, IS-95 CDMA
Channel Power at -55dBc
ACP
+47dBm Typ. OIP3
High Gain: 33dB Typ.
On-Chip Active Bias Control
Optimum Technology
Matching® Applied
Patented high Reliability GaAs
HBT Technology
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
VC1
Surface-Mountable Plastic
Package
Active
Bias
VBIAS
RFOUT/
VC2
Applications
IS-95 CDMA Systems
RFIN
Multi-Carrier Applications
AMPS, ISM Applications
GaAs pHEMT
Si CMOS
VPC2
Si BJT
GaN HEMT
RF MEMS
Specification
Parameter
Unit
Condition
Min.
810
Typ.
900
29.0
-55.0
Max.
960
Frequency of Operation
Output Power at 1dB Compression
Adjacent Channel Power
MHz
dBm
dBc
-52.0
34.5
IS-95 at 880MHz, ±885KHz offset,
=20.7dBm
P
OUT
Small Signal Gain
Input VSWR
Output Third Order Intercept Point
Noise Figure
31.5
33.0
1.5:1
47.0
5.0
dB
880MHz
Power out per tone=+14dBm
=10mA, I =70mA, I =320mA
dBm
dB
mA
Device Current
360
400
425
I
BIAS
C1
C2
Device Voltage
Thermal Resistance
(Junction - Lead)
4.75
5.0
31
5.25
V
°C/W
T =85°C
L
Test Conditions: Z =50 Temp=25°C
V
=5.0V
0
CC
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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