RF2418(Rec_A6) Ver la hoja de datos (PDF) - RF Micro Devices
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RF2418 Datasheet PDF : 10 Pages
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RF2418
8
LOW CURRENT LNA/MIXER
Typical Applications
• UHF Digital and Analog Receivers
• Commercial and Consumer Systems
• Digital Communication Systems
• 433MHz and 915MHz ISM Band Receivers
• Spread-Spectrum Communication Systems • General Purpose Frequency Conversion
Product Description
The RF2418 is a monolithic integrated UHF receiver
front-end. The IC contains all of the required components
0.156
0.148
.018
.014
0.010
0.004
to implement the RF functions of the receiver except for
the passive filtering and LO generation. It contains an
LNA (low-noise amplifier), a second RF amplifier, a dual-
gate GaAs FET mixer, and an IF output buffer amplifier
0.347
0.339
0.050
which will drive a 50Ω load. In addition, the IF buffer
amplifier may be disabled and a high impedance output is
provided for easy matching to IF filters with high imped-
ances. The output of the LNA is made available as an
output to permit the insertion of a bandpass filter between
0.252
0.059
0.236
0.057
8° MAX
8
0° MIN
the LNA and the RF/Mixer section. The LNA section may
be disabled by removing the VDD1 connection to the IC.
0.0500
0.0164
0.010
0.007
Optimum Technology Matching® Applied
Si BJT
ü GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
LNA IN 1
GND 2
VDD1 3
VDD2 4
IF BYP 5
10pF
IF2 OUT 6
BUFFER
IF1 OUT 7
LNA
RF AMP
MIXER
14 LNA OUT
13 GND
12 GND
11 RF IN
10 GND
9 DEC
8 LO IN
Package Style: SOIC-14
Features
• Single 3V to 6.5V Power Supply
• High Dynamic Range
• Low Current Drain
• High LO Isolation
• LNA Power Down Mode for Large Signals
Ordering Information
RF2418
Low Current LNA/Mixer
RF2418 PCBA Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A6 010717
8-35
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