MGA-52543 Datasheet, PDF (1/8 Pages) AVAGO TECHNOLOGIES LIMITED – Low Noise Amplifi er

MGA-52543
Low Noise Amplifier
Data Sheet
Description
Avago Technologies’ MGA-52543 is an economical, easy-
to-use GaAs MMIC Low Noise Amplifier (LNA), which
is designed for use in LNA and driver stages. While a
capable RF/microwave amplifier for any low noise and
high linearity 0.4 to 6 GHz application, the LNA focus is
Cellular/PCS base stations.
To attain NF condition, some simple external matching is
min
required. The MGA-52543 features a calculated NF of 1.61
min
dB and 15 dB associated gain at 1.9 GHz from a cascode
stage, feedback FET amplifier. The input and output are
partially matched to be near 50 Ω.
For base station radio card unit LNA application where
better than 2:1 VSWR is required, a series inductor on the
input and another series inductor on the output can be
added externally. The resulting Noise Figure is typically
1.9 dB with 14 dB Gain at 1.9 GHz. With a single 5.0V
supply, the LNA typically draws 53 mA. This alignment
results in an Input Intercept Point of 17.5 dBm.
The MGA-52543 is a GaAs MMIC, fabricated using Avago
Technologies’ cost-effective, reliable PHEMT (Pseudomor-
phic High Electron Mobility Transistor) process. It is housed
in the SOT-343 (SC70 4-lead) package. This package offers
miniature size (1.2 mm by 2.0 mm), thermal dissipation,
and RF characteristics.
Surface Mount Package
SOT-343 /4-lead SC70
Features
 Lead-free Option Available
 Operating frequency:
0.4 GHz ~ 6.0 GHz
 Minimum noise figure: 1.61 dB at 1.9 GHz
 Associated gain : 15 dB at 1.9 GHz
 1.9 GHz performance tuned for VSWR < 2:1
Noise figure: 1.9 dB
Gain: 14 dB
P : +17.5 dBm
1dB
Input IP3: +17.5 dBm
 Single supply 5.0 V operation
Applications
 Cellular/PCS base station radio card LNA
 High dynamic range amplifier for base stations, WLL,
WLAN, and other applications
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 1A)
Refer to Avago Application Note A004R:
Electrostatic Discharge Damage and Control.
Simplified Schematic
Pin Connections and Package Marking
3
INPUT
1
GND
Input
3.3 nH
4
GND
2
OUTPUT
&V_d
Gnd
Note:
Top View. Package marking provides orientation and identification.
“42” = Device Code
“x” = Data code character identifies month of manufacture
360 pF
V_d 5V
22 nH
2.2 nH
Output
18 pF
MGA-52543