8-53
8
Preliminary
Product Description
Ordering Information
Typical Applications
Features
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
Optimum Technology Matching® Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
ü
SiGe HBT
Si CMOS
PD
VCC1
VCC2
MIX OUT-
GND3
MIX IN
NC
NC
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
11
Bias
Circuits
LNA
RF AMP
RF2494
HIGH FREQUENCY LNA/MIXER
• Part of 2.4GHz IEEE802.11b WLANs
• Digital Communication Systems
• Spread-Spectrum Communication Systems
• WLAN or Wireless Local Loop
• Portable Battery-Powered Equipment
• UHF Digital and Analog Receivers
The RF2494 is a monolithic integrated UHF receiver front
end suitable for 2.4GHz ISM band applications. The IC
contains all of the required components to implement the
RF functions of the receiver except for the passive filter-
ing and LO generation. It contains an LNA (low-noise
amplifier), a second RF amplifier and a doubly balanced
mixer. The output of the LNA is made available as an out-
put to permit the insertion of a bandpass filter between
the LNA and the RF/Mixer section. The mixer outputs can
be selectivelydisabledtoallowfor theIFfilter tobeused
in the transmit mode.
• Single 2.7V to 3.6V Power Supply
• 2400MHz to 2500MHz Operation
• Two Gain Settings: 28dB or 12dB
• 4.5dB CascadedNF, HighGainMode
• 20mA DC Current Consumption
• Input IP3: -23dBm or -8dBm
RF2494
High Frequency LNA/Mixer
RF2494 PCBA-H Fully Assembled Evaluation Board (2.5GHz)
8
Rev A0 010730
Dimensions in mm.
1.85
1.55 sq.
.60
.24 typ
.75
.50
.23
.13
4PLCS
.65
.30
4PLCS
4.00
sq.
2
.35
.23
.65
.05
.01
12°
max
1.00
0.85
.80
.65
NOTES:
Shaded Pin is Lead 1.
1
5
Die thickness allowable: 0.305 mm max.
Package Warpage: 0.05 max.
4
Pin 1 identifier must exist on top surface of package by identification mark or
feature on the package body. Exact shape and size is optional.
3
Dimension applies to plated terminal and is measured between 0.02 mm and
0.25 mm from terminal end.
2
Package Style: LCC, 16-Pin, 4x4
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