Agilent MGA-52543
Low Noise Amplifier
Data Sheet
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
1dB
: +17.5 dBm
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
Description
Agilent 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
min
condition, some
simple external matching is re-
quired. The MGA-52543 features a
calculated NF
min
of 1.61 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
Simplified Schematic
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 Agilent
Technologies’ cost-effective,
reliable PHEMT (Pseudomorphic
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
Pin Connections and
Package Marking
3
INPUT
1
GND
Attention:
Observe precautions for
handling electrostatic
sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 1A)
2
OUTPUT
& V
d
42
4
GND
Refer to Agilent Application Note A004R:
Electrostatic Discharge Damage and Control.
V
d
5V
360 pF
22 nH
3.3 nH
2.2 nH
18 pF
MGA-52543
HP [ AGILENT(HEWLETT-PACKARD) ]
