RF2418PCBA データシートの表示（PDF） - RF Micro Devices
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RF2418PCBA Datasheet PDF : 10 Pages
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RF2418
0
LOW CURRENT LNA/MIXER
RoHS Compliant & Pb-Free Product
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
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
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
the LNA and the RF/Mixer section. The LNA section may
be disabled by removing the VDD1 connection to the IC.
0.156
0.148
.018
.014
0.347
0.339
0.050
0.010
0.004
0.252
0.236
8° MAX
0° MIN
0.0500
0.0164
0.059
0.057
0.010
0.007
Optimum Technology Matching® Applied
Si BJT
9 GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
InGaP/HBT
GaN HEMT
SiGe Bi-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
Functional Block Diagram
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
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A7 060203
8-21
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