RF2444
8
Typical Applications
• WLAN or Wireless Local Loop
• Digital Communication Systems
• Part of 2.4GHz Chipset
• Portable Battery-Powered Equipment
HIGH FREQUENCY LNA/MIXER
• Spread-Spectrum Communication Systems • UHF Digital and Analog Receivers
Product Description
The RF2444 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 selectively disabled to allow for the IF filter to be used
in the transmit mode.
-A-
3.90
+ 0.10
0.25
+ 0.05
0.05
+ 0.05
Note 3
4.90
+ 0.20
0.65
NOTES:
1. Shaded lead is pin 1.
2. Lead coplanarity - 0.10 with
respect to datum "A".
3. Lead standoff is specified from the
lowest point on the package underside.
6.00
+ 0.20
1.40
+ 0.10
EXPOSED DIE
FLAG
Dimensions in mm.
8° MAX
0° MIN
3.302
8
0.60
+ 0.15
0.24
0.20
2.286
Optimum Technology Matching® Applied
Package Style: SSOP-16 EDF Slug
ü
Si Bi-CMOS
Si BJT
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Features
• Single 2.7V to 3.6V Power Supply
• 2400MHz to 2500MHz Operation
GAIN SEL 1
LNA
LNA IN 2
PD 3
VCC1 4
VCC2 5
MIX OUT- 6
MIX OUT+ 7
MIXER
LO IN 8
BACKSIDE GND
RF AMP
Bias
Circuits
16 VCC4
15 LNA OUT
14 NC
13 NC
12 MIXIN
11 GND3
10 VCC3
9 RX EN
• Two Gain Settings: 28dB or 12dB
• 4.5dB Cascaded NF, High Gain Mode
• 20mA DC Current Consumption
• Input IP
3
: -23dBm or -8dBm
Ordering Information
RF2444
High Frequency LNA/Mixer
RF2444 PCBA-H Fully Assembled Evaluation Board (2.5GHz)
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A3 010717
8-53
FRONT-ENDS
RFMD [ RF MICRO DEVICES ]
