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PDF MGA-71543 Data sheet ( Hoja de datos )
| Número de pieza | MGA-71543 | |
| Descripción | Low Noise Amplifier | |
| Fabricantes | Agilent | |
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Agilent MGA-71543
Low Noise Amplifier with
Mitigated Bypass Switch
Data Sheet
Description
Agilent’s MGA-71543 is an
economical, easy-to-use GaAs
MMIC Low Noise Amplifier (LNA),
which is designed for adaptive
CDMA and W-CDMA receiver
systems. The MGA-71543 is part
of the Agilent Technologies
complete CDMAdvantage RF
chipset.
The MGA-71543 features a
minimum noise figure of 0.8 dB
and 16 dB available gain from a
single stage, feedback FET
amplifier. The input and output
are partially matched, and only a
simple series/shunt inductor
match is required to achieve low
noise figure and VSWR into 50Ω.
When set into the bypass mode,
both input and output are inter-
nally matched through a mitigative
circuit. This circuit draws no
current, yet duplicates the in and
out impedance of the LNA. This
allows the system user to have
minimum mismatch change from
LNA to bypass mode, which is
very important when the
MGA-71543 is used between
duplexers and/or filters.
The MGA-71543 offers an inte-
grated solution of LNA with
adjustable IIP3. The IIP3 can be
fixed to a desired current level for
the receiver’s linearity require-
ments. The LNA has a bypass
switch function, which provides
low insertion loss at zero current.
The bypass mode also boosts
dynamic range when high level
signal is being received.
The MGA-71543 is designed for
CDMA and W-CDMA receiver
systems. The IP3, Gain, and
mitigative network are tailored to
these applications where filters
are used. Many CDMA systems
operate 20% LNA mode, 80%
bypass. With the bypass current
draw of zero and LNA of 10 mA,
the MGA-71543 allows an average
2 mA current.
The MGA-71543 is a GaAs MMIC,
processed on Agilent’s cost
effective PHEMT (Pseudomorphic
High Electron Mobility Transistor
Technology). It is housed in the
SOT343 (SC70 4-lead) package.
Features
• Operating frequency:
0.1 GHz ~ 6.0 GHz
• Noise figure: 0.8 dB (NFmin)
• Gain: 16 dB
• Average Idd = 2mA in CDMA
handset
• Bypass switch on chip
Loss = -5.6 dB (Id < 5 µA)
IIP3 = +35 dBm
• Adjustable input IP3: 0 to +9 dBm
• 2.7 V to 4.2 V operation
Applications
• CDMA (IS-95, J-STD-008) Receiver
LNA
• Transmit Driver Amp
• W-CDMA Receiver LNA
• TDMA (IS-136) handsets
Surface Mount Package
SOT-343/4-lead SC70
Pin Connections and
Package Marking
3
INPUT
& Vref
4
RF Gnd
& Vs
1
RF Gnd
& Vs
2
OUTPUT
& Vd
1 page  
MGA-71543 Typical Performance, continued
Tc = 25°C, Zo = 50, Vd = 3V, Id = 10 mA unless stated otherwise. Data vs. frequency was measured in Figure 5 test system
and was optimized for each frequency with external tuners.
18 18
15 15
12 12
18
15
12
9
6
3
6 mA
0 10 mA
20 mA
-3
012 3 456
FREQUENCY (GHz)
Figure 15. Input Third Order Intercept Point
vs. Frequency and Current.
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 10 20 30 40
Id CURRENT (mA)
Figure 18. Minimum Noise Figure vs. Current
(2 GHz).
9
-6
3
-40°C
0
+25°C
+85°C
-3
0 10 20 30 40
Idsq CURRENT (mA)
Figure 16. Output Power at 1 dB Compression
vs. Idsq Current and Temperature (Passive
Bias, Vref Fixed)[4].
20
17
14
11
8
-40°C
5 +25°C
+85°C
2
0 10 20 30 40
Id CURRENT (mA)
Figure 19. Gain vs. Current and Temperature
(2 GHz).
9
6
3
-40°C
0
+25°C
+85°C
-3
0 10 20 30 40
Id CURRENT (mA)
Figure 17. Output Power at 1 dB Compression
vs. Current and Temperature (Source Resistor
Bias in Evaluation Circuit)[5].
12
9
6
3
0
-40°C
+25°C
+85°C
-3
0 10 20 30 40
Id CURRENT (mA)
Figure 20. Input Third Intercept Point vs.
Current and Temperature (2 GHz).
1.0
0.8
0.6
0.4
0.2
0
0 10 20 30
Id CURRENT (mA)
Figure 21. Control Voltage vs. Current.
40
Notes:
4. P1dB measurements were performed with
passive biasing in Production Test Circuit
(Figure 4.). Quiescent drain current, Idsq, is
set by a fixed Vref with no RF drive applied.
As P1dB is approached, the drain current
may increase or decrease depending on
frequency and DC bias point which typically
results in higher P1dB than if the drain
current is maintained constant by active
biasing.
5. P1dB measurements were performed in
Evaluation Test Circuit with source resistor
biasing which maintains the drain current
near the quiescent value under large signal
conditions.
5 Page 
MGA-71543 Typical Scattering Parameters and Noise Parameters
TC = 25°C, Vds = 2.7 V, Vref = -0.3 V, Id = 40 mA, ZO = 50Ω
Freq S11 S11
(GHz) Mag. Ang.
S21 S21
Mag. Ang.
S12 S12
Mag. Ang.
S22
Mag.
0.3
0.889 -12.3
6.174 169.2
0.022 22.3
0.508
0.5
0.88 -19.8
6.117 161.8
0.025 31.6
0.501
0.7
0.87 -27.4
6.012 155.1
0.029 37.9
0.499
0.9
0.857 -34.9
5.885 148.5
0.035 40.9
0.497
1.1
0.841 -41.9
5.74 142.1
0.04 41.7
0.493
1.3
0.823 -48.7
5.589 136
0.046 41.4
0.488
1.5
0.807 -55.2
5.435 130.2
0.051 40.2
0.483
1.7
0.788 -61.6
5.289 124.5
0.055 38.7
0.477
1.9
0.769 -67.6
5.145 119
0.06 37
0.47
2
0.76 -70.6
5.072 116.3
0.062 36.1
0.466
2.1
0.75 -73.5
5.003 113.7
0.064 35.1
0.462
2.2
0.739 -76.3
4.93 111
0.066 34.2
0.458
2.3
0.73 -79.4
4.865 108.4
0.068 33.1
0.452
2.4
0.718 -82.2
4.801 105.9
0.07 32
0.448
2.5
0.709 -85.2
4.739 103.3
0.072 30.9
0.442
3
0.656 -99.3
4.447 91
0.081 25.5
0.413
3.5 0.608 -113.8 4.197 79
0.089 20
0.38
4
0.559 -129.5 3.963 67.3
0.095 14
0.344
4.5
0.521 -146
3.751 55.6
0.101 8.2
0.31
5
0.49 -163
3.53 44.1
0.106 2
0.278
6
0.457 165.4
3.124 22.5
0.114 -8.6
0.236
7
0.447 137.1
2.776 2.2
0.12 -19.8
0.201
8
0.436 109.8
2.484 -17.2
0.122 -30.9
0.146
9
0.462 84.5
2.28 -36
0.132 -37.8
0.096
10
0.546 59.1
2.102 -56.7
0.146 -50.8
0.101
11
0.621 37.8
1.861 -77
0.152 -64.7
0.177
12
0.672 20.3
1.649 -95.4
0.155 -77.6
0.244
13
0.705 2.9
1.478 -114.1 0.157 -91.3
0.293
14
0.733 -14.6
1.32 -133.9 0.157 -105.8 0.366
15
0.768 -31.3
1.129 -153.1 0.149 -119.7 0.461
16
0.786 -45.7
0.946 -170.6 0.141 -132.5 0.545
17
0.794 -56.1
0.801 174.5
0.136 -143.6 0.595
18
0.83 -67.4
0.703 158.5
0.131 -157.4 0.641
S22
Ang.
-8.9
-13.7
-19.1
-24.2
-29
-33.4
-37.5
-41.3
-45
-46.5
-48.2
-50
-51.4
-53
-54.5
-61.9
-69.7
-77.9
-87.7
-98
-117.5
-137.1
-151.4
-173.8
112
66.8
42.3
19.8
-2.2
-19.1
-32.1
-45.1
-58.8
S21
(dB)
15.8
15.7
15.6
15.4
15.2
14.9
14.7
14.5
14.2
14.1
14.0
13.9
13.7
13.6
13.5
13.0
12.5
12.0
11.5
11.0
9.9
8.9
7.9
7.2
6.5
5.4
4.3
3.4
2.4
1.1
-0.5
-1.9
-3.1
Gmax
(dB)
23.9
23.5
23.0
22.4
21.7
21.0
20.4
19.8
19.2
18.9
18.6
18.3
18.0
17.7
17.5
16.2
15.1
14.1
13.3
12.5
11.2
10.0
8.9
8.2
8.0
7.6
7.2
6.8
6.4
6.0
5.2
4.3
4.3
RLin RLout Isolation
(dB) (dB) (dB)
-1.0 -5.9 -33.2
-1.1 -6.0 -32.0
-1.2 -6.0 -30.8
-1.3 -6.1 -29.1
-1.5 -6.1 -28.0
-1.7 -6.2 -26.7
-1.9 -6.3 -25.8
-2.1 -6.4 -25.2
-2.3 -6.6 -24.4
-2.4 -6.6 -24.2
-2.5 -6.7 -23.9
-2.6 -6.8 -23.6
-2.7 -6.9 -23.3
-2.9 -7.0 -23.1
-3.0 -7.1 -22.9
-3.7 -7.7 -21.8
-4.3 -8.4 -21.0
-5.1 -9.3 -20.4
-5.7 -10.2 -19.9
-6.2 -11.1 -19.5
-6.8 -12.5 -18.9
-7.0 -13.9 -18.4
-7.2 -16.7 -18.3
-6.7 -20.4 -17.6
-5.3 -19.9 -16.7
-4.1 -15.0 -16.4
-3.5 -12.3 -16.2
-3.0 -10.7 -16.1
-2.7 -8.7 -16.1
-2.3 -6.7 -16.5
-2.1 -5.3 -17.0
-2.0 -4.5 -17.3
-1.6 -3.9 -17.7
Freq
(GHz)
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2
2.1
2.2
2.3
2.4
2.5
3
5
6
Fmin
(dB)
0.69
0.73
0.73
0.77
0.77
0.8
0.83
0.85
0.86
0.9
0.91
0.91
0.93
0.98
1.19
1.35
GAMMA OPT
Mag Ang
0.56 17.3
0.57 23.9
0.56 30.8
0.54 36.5
0.58 40.7
0.57 43.9
0.55 49.7
0.54 52.1
0.54 54.3
0.54 55.5
0.54 59.3
0.52 61
0.52 63.2
0.49 74.7
0.37 136
0.35 172.8
Rn/50
0.32
0.3
0.31
0.3
0.29
0.29
0.28
0.27
0.27
0.26
0.26
0.25
0.25
0.22
0.1
0.08
Gass
(dB)
18.5
18.3
18
17.6
17.6
17.3
16.9
16.7
16.5
16.4
16.2
16
15.8
15
11.9
10.7
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet MGA-71543.PDF ] | |
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