RF2138
2
Typical Applications
• 3V GSM Cellular Handsets
• 3V Dual-Band/Triple-Band Handsets
• Commercial and Consumer Systems
• Portable Battery-Powered Equipment
• GPRS Compatible
3V GSM POWER AMPLIFIER
2
POWER AMPLIFIERS
0.38
0.40
sq.
2.00
1.50
sq.
0.28 0.80
0.13
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Product Description
The RF2138 is a high power, high efficiency power ampli-
fier module offering high performance in GSM or GPRS
applications. The device is manufactured on an advanced
GaAs HBT process, and has been designed for use as
the final RF amplifier in GSM hand held-digital cellular
equipment and other applications in the 800MHz to
950MHz band. On-board power control provides over
70dB of control range with an analog voltage input, and
provides power down with a logic “low” for standby opera-
tion. The device is self-contained with 50Ω input and the
output can be easily matched to obtain optimum power
and efficiency characteristics. The RF2138 can be used
together with the RF2140 for dual-band operation. The
device is packaged in an ultra-small ceramic package,
minimizing the required board space.
Optimum Technology Matching® Applied
Si BJT
Si Bi-CMOS
3.50
3.35
sq.
1
1.50
1.20
ALL SOLDER PAD TOLERANCES P0.05mm
ro
du
ct
ü
GaAs HBT
SiGe HBT
VCC2
VCC2
GaAs MESFET
Si CMOS
Features
• Single 2.7V to 4.8V Supply Voltage
• +36dBm Output Power at 3.5V
• 32dB Gain with Analog Gain Control
• 58% Efficiency
• 800MHz to 950MHz Operation
• Supports GSM and E-GSM
1
GND2
RF IN
GND1
2
3
4
5
16
15
U
pg
r
S
ee
6
APC1
7
APC2
ad
ed
14
13
12 RF OUT
11 RF OUT
10 RF OUT
9
NC
8
VCC
2F0
NC
NC
P
VCC1
Ordering Information
RF2138
RF2138 PCBA
3V GSM Power Amplifier
Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Rev A9 011031
R
F2
17
4.20
sq.
3.95
Package Style: MP16K01A
3
2-119
RFMD [ RF MICRO DEVICES ]
