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MGA-53543 Datasheet(Fiches technique) 10 Page - Agilent(Hewlett-Packard)

Numéro de pièce MGA-53543
Description  50 MHz to 6 GHz High Linear Amplifier
Télécharger  14 Pages
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Fabricant  HP [Agilent(Hewlett-Packard)]
Site Internet  http://www.home.agilent.com
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10
Performance of MGA-53543 at
900 MHz
At 900 MHz MGA-53543 delivers
OIP3 of 40 dBm along with a
noise figure of 1.43 dB. Gain is
measured to be 17.1 dB and input
return loss is 13.7 dB and output
return loss is 13.3 dB as shown
in Figures 16 and 17. P1dB is
18.8 dBm.
FREQUENCY (MHz)
400
20
15
10
5
0
1400
600
1000
1200
800
Gain
NF
Figure 16. Gain and Noise Figure vs
Frequency.
FREQUENCY (MHz)
400
0
-5
-10
-15
-20
1400
600
1000
1200
800
S11
S22
Figure 17. Input and Output return loss vs
Frequency.
900 MHz LNA Design
To demonstrate the versatility of
the MGA-53543, the following
example describes a cellular
band Low Noise Amplifier (LNA)
design. The methodology for a
900 MHz LNA design differs from
the previous examples in that
only the input match affects
noise figure. Thus, optimizing for
minimum noise figure entails
matching only the input to
Γ
opt
instead of
Γ
S, and the output can
either be matched to S22 for
better gain or
Γ
L for better
linearity. Figure 18 shows the
complete schematic for a
900 MHz low noise amplifier
design and Table 5 describes the
required components.
2.2
+5V
15 nH
12 nH
34
12
4.7 pF
1000 pF
4.7 pF
RFin
RFout
53
Figure 18. Schematic for 900 MHz LNA design.
12 nH
TOKO LL1608-FS12NJ
15 nH
TOKO LL1005-FS15N
4.7 pF
Phycomp 0402CG479C9B200
2.2
RHOM MCR01J2R2
1000 pF
Phycomp 04022R102K9B200
Table 5. Component Parts List for the
MGA-53543 HLA at 900 MHz.
Performance of MGA-53543 at
900 MHz
Biased with a +5 Volt supply
MGA-53543 delivers a Noise
Figure of 1.33 dB at 900 MHz.
This number is higher than NF
min
only because of loss from lumped
element components with
parasitic losses. A microstip or
distributed element match may
improve noise figure by .2 dB.
Gain is measured to be 17.4 dB as
shown in Figure 19. Input and
output VSWR are both better
than 2:1, with input return loss
of 25 dB and output return loss
at 17.5 dB shown in Figure 20.
FREQUENCY (MHz)
400
20
15
10
5
0
1400
600
1000
1200
800
Gain
NF
Figure 19. Gain, Noise Figure and Output
Power at 900 MHz.
FREQUENCY (MHz)
400
0
-5
-10
-15
-20
-25
-30
1400
600
1000
1200
800
S11
S22
Figure 20. Input and Output return loss at
900 MHz.
Input IIP3 is measured to be
18.6 dBm and P1dB is 19.0 dB at
900 MHz.




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