Preliminary
Product Description
Stanford Microdevices’ SPA-1218 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.
This product is specifically designed for use as a driver
amplifier for infrastructure equipment in the 1950 MHz PCS
band. Its high linearity makes it an ideal choice for multi-carrier
and digital applications.
SPA-1218
1960 MHz 1 Watt Power Amp with
Active Bias
VCC
VBIAS
RFIN
N/C
Active
Bias
Product Features
•
On-chip Active Bias Control
•
Patented High Reliability GaAsHBT Technology
•
High Linearity Performance: +48dBm OIP3 Typ.
•
Surface-Mountable Plastic Package
Applications
•
PCS Systems
•
Multi-Carrier Applications
RFOUT/
VCC
Input
Match
Symbol
f
0
P
1dB
S
21
S
11
OIP
3
Icc
R
th
, j-l
Parameters: Test C onditions:
Z
0
= 50 Ohms, VC C =5V, Temp = 27ºC
Frequency of Operati on
Output Power at 1dB C ompressi on
Vc
1
, Vbi as, Vc
2
= 5.0V
Small Si gnal Gai n
Input VSWR
Output Thi rd Order Intercept Poi nt
Power out per tone = +14 dBm
D evi ce C urrent, VC C = 5V
Thermal Resi stance (juncti on - lead)
U nits
MHz
dB m
dB
-
dB m
mA
ºC /W
Min.
1930
Typ.
Max.
1990
29.5
12.0
1.5:1
48.0
320
40
The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.
Stanford 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. Stanford Microdevices does not
authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systems.
Copyright 2000 Stanford Microdevices, Inc. All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1
http://www.stanfordmicro.com
EDS-101428 Rev A
STANFORD [ STANFORD MICRODEVICES ]
