RF2128
2
Typical Applications
• PCS Communication Systems
• 2.5GHz ISM Band Applications
• Wireless LANs
• Commercial and Consumer Systems
• Portable Battery Powered Equipment
MEDIUM POWER LINEAR AMPLIFIER
2
POWER AMPLIFIERS
Product Description
The RF2128 is a medium-power, high-efficiency, linear
amplifier IC. The device is manufactured on an advanced
Gallium Arsenide Heterojunction Bipolar Transistor (HBT)
process, and has been designed for use as the final RF
amplifier in 2.45GHz ISM applications such as WLAN
and POS terminals. The part also will function as the final
stage in digital PCS phone transmitters requiring linear
amplification operating between 1900MHz and
2200MHz, with over 100mW transmitted power, or as the
driver stage for the RF2125 high power amplifier. A sim-
ple power down function is included for TDD operation.
.315
.305
.057 MAX
1
.050
ro
du
ct
Optimum Technology Matching® Applied
Si BJT
Si Bi-CMOS
ü
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Features
• Single 3.0V to 6.5V Supply
• 100mW Linear Output Power
• 25dB Small Signal Gain
• 30% Efficiency
• Digitally Controlled Power Down Mode
• 1900MHz to 2500MHz Operation
VCC2 1
GND1 2
PD 3
U
pg
r
BIAS
CIRCUITS
S
ee
ad
ed
8 VCC1
7 RF OUT
6 RF OUT
5 GND 2
P
RF IN 4
Ordering Information
RF2128
RF2128 PCBA
Medium Power Linear Amplifier
Fully Assembled Evaluation Board
PACKAGE BASE
GND
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
R
F2
12
4°MAX
0°MIN
.017
.013
Package Style: SOP-8-C
8P
.006
.004
.166
SQ
.017
.013
.004
.000
.180 SQ MAX
Metal lid and base, gold plated
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A3 010112
2-85
RFMD [ RF MICRO DEVICES ]
