Preliminary
RF2318
LINEAR BROADBAND AMPLIFIER
3
Typical Applications
• CATV Amplifiers
• Cable Modems
• Broadband Gain Blocks
• Return Channel Amplifier
• Base Stations
3
LINEAR CATV
AMPLIFIERS
Product Description
The RF2318 is a broadband general purpose, low cost
high linearity RF amplifier IC. The device is manufactured
on an advanced Gallium Arsenide Heterojunction Bipolar
Transistor (HBT) process, and has been designed for use
as an easily cascadable 75Ω gain block. The gain flat-
ness of better than 1.0dB from 5MHz to 1000MHz, and
the high linearity, make this part ideal for cable TV appli-
cations. Other applications include IF and RF amplifica-
tion in wireless voice and data communication products
operating in frequency bands up to 5000MHz. The device
is self-contained with 75Ω input and output impedances,
and requires only two external DC biasing elements to
operate as specified.
.156
.152
.017
1
.195
.191
.050
.240
.232
.056
.052
.004
MIN
5°
.022
.018
.008
Optimum Technology Matching® Applied
Si BJT
Si Bi-CMOS
ü
GaAs HBT
SiGe HBT
Package Style: SOP-8
GaAs MESFET
Si CMOS
Features
• DC to over 5000MHz Operation
• Internally Matched Input and Output
• 8dB Small Signal Gain
• 6dB Noise Figure
• +18dBm Output Power
RF IN 1
GND 2
GND 3
GND 4
8 RF OUT
7 GND
6 GND
5 GND
• Single 9V to 12V Positive Power Supply
Ordering Information
RF2318
Linear Broadband Amplifier
RF2318 PCBA-L Fully Assembled Evaluation Board (DC to 3GHz)
RF2318 PCBA-H Fully Assembled Evaluation Board (3GHz to 6GHz)
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Functional Block Diagram
Rev A2 010228
3-21
RFMD [ RF MICRO DEVICES ]
