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PDF MGA-72543 Data sheet ( Hoja de datos )
| Número de pieza | MGA-72543 | |
| Descripción | Low Noise Amplifier | |
| Fabricantes | AVAGO | |
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MGA-72543
PHEMT* Low Noise Amplifier with Bypass Switch
Data Sheet
Description
Avago’s MGA-72543 is an economical, easy-to-use GaAs
MMIC Low Noise Amplifier (LNA),which is designed for an
adaptive CDMA receiver LNA and adaptive CDMA transmit
driver amplifier.
The MGA-72543 features a minimum noise figure of 1.4 dB
and 14 dB associated gain from a single stage, feedback
FET amplifier. The output is internally matched to 50Ω.
The input is optimally internally matched for lowest noise
figure into 50Ω. The input may be additionally externally
matched for low VSWR through the addition of a single
series inductor. When set into the bypass mode,both input
and output are internally matched to 50Ω.
The MGA-72543 offers an integrated solution of LNA with
adjustable IIP3. The IIP3 can be fixed to a desired current
level for the receiver’s linearity requirements. The LNA has
a bypass switch function,which sets the current to zero
and provides low insertion loss. The bypass mode also
boosts dynamic range when high level signal is being
received.
For the CDMA driver amplifier applications, the MGA-
72543 provides suitable gain and linearity to meet the
ACPR requirements when the handset transmits the
highest power. When transmitting lower power, the MGA-
72543 can be bypassed, saving the drawing current.
The MGA-72543 is a GaAs MMIC, processed on Avago’s
cost effective PHEMT (Pseudomorphic High Electron Mo-
bility Transistor). It is housed in the SOT343 (SC70 4-lead)
package, and is part of the Avago Technologies CDMAd-
vantage RF chipset.
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 0)
Refer to Avago Application Note A004R:
Electrostatic Discharge Damage and Control.
Features
Lead-free Option Available
Operating Frequency: 0.1 GHz ~ 6.0 GHz
Noise Figure: 1.4 dB at 2 GHz
Gain: 14 dB at 2 GHz
Bypass Switch on Chip Loss = -2.5 dB (Id <5 μA)
IIP3 = +35 dBm
Adjustable Input IP3: +2 to +14 dBm
2.7 V to 4.2 V Operation
Very Small Surface Mount Package
Applications
CDMA (IS-95, J-STD-008) Receiver LNA Transmit
Driver Amp
TDMA (IS-136)Handsets
Surface Mount Package
SOT-343 (SC-70)
Pin Connections and Package Marking
3
INPUT
& Vref
4
GND
1
GND
2
OUTPUT
& Vd
Package marking is 3 characters. The last
character represents date code.
*Pseudomorphic High Electron Mobility Transistor
1 page  
MGA-72543 Typical Performance, continued, Tc = 25°C, Zo = 50, Vd = 3V, Id = 20 mA, Frequency = 2 GHz, unless stated oth-
erwise. All data as measured in Figure 2 test circuit (Input & Output presented to 50Ω).
18
15
12
9
6
3
2.7 V
0 3.0 V
3.3 V
-3
01 2 34 5 6
FREQUENCY (GHz)
Figure 12. Output Power at 1 dB Compression
vs. Frequency and Voltage.
18
15
12
9
6
3
-40 C
0 +25 C
+85 C
-3
01 2 3 4 5 6
FREQUENCY (GHz)
Figure 13. Output Power at 1 dB Compression
vs. Frequency and Temperature.
18
15
12
9
6
3
10 mA
0 20 mA
40 mA
-3
01 2 3 4 5
FREQUENCY (GHz)
Figure 14. Input Third Order Intercept
Point vs. Frequency and Current.
6
2.6
-40 C
2.4 +25 C
+85 C
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0 20 40 60
Id CURRENT (mA)
Figure 15. Minimum Noise Figure vs.
Current and Temperature.
80
18
15
12
9
6
3
-40 C
0 +25 C
+85 C
-3
0 20 40 60
Id CURRENT (mA)
Figure 16. Associated Gain (Fmin)
vs. Current and Temperature.
80
21
18
15
12
9
6
-40 C
3 +25 C
+85 C
0
0 20 40 60
Id CURRENT (mA)
Figure 17. Input Third Order Intercept
Point vs. Current and Temperature.
80
18
15
12
9
6
3
-40 C
0 +25 C
+85 C
-3
0 20 40 60 80
Id CURRENT (mA)
Figure 18. Output Power at 1 dB Compression
vs. Current and Temperature.
5
4
3
Gamma
Input
Output
2
1
0 20 40 60
Id CURRENT (mA)
Figure 19. Input and Output VSWR
and VSWR of | opt | vs. Current.
80
1
0.8
0.6
0.4
0.2
-40 C
+25 C
+85 C
0
0 20 40 60 80
Id CURRENT (mA)
Figure 20. V ref vs. Current and Temperature.
5
5 Page 
MGA-72543 Typical Scattering Parameters and Noise Parameters
TC = 25°C, Vd = 3.0V, Id = 60 mA, ZO = 50Ω, Vref = 0.1V (from S and Noise Parameters in Figure 2 test circuit)
Freq.
S11 S21
S12 S22 |S21|2 RLin
(GHz) Mag. Ang. Mag. Ang. Mag. Ang.
RLout Gmax Isolation
Mag. Ang. (dB) (dB) (dB) (dB)
0.10 0.77 -10
0.50 0.72 -27
0.80 0.69 -39
0.90 0.68 -43
1.00 0.67 -47
1.10 0.66 -51
1.20 0.65 -54
1.30 0.65 -58
1.40 0.64 -62
1.50 0.63 -65
1.60 0.62 -69
1.70 0.61 -72
1.80 0.60 -75
1.90 0.59 -79
2.00 0.58 -82
2.10 0.57 -85
2.20 0.56 -89
2.30 0.55 -92
2.40 0.55 -95
2.50 0.54 -98
3.00 0.50 -114
3.50 0.47 -130
4.00 0.44 -147
4.50 0.43 -164
5.00 0.42 179
5.50 0.42 164
6.00 0.43 148
6.50 0.44 137
7.00 0.43 126
7.50 0.42 115
8.00 0.42 101
6.38 173
6.01 159
5.75 148
5.66 145
5.58 141
5.49 138
5.40 135
5.32 132
5.23 129
5.15 125
5.07 122
4.98 119
4.90 117
4.82 114
4.75 111
4.67 108
4.60 105
4.53 103
4.47 100
4.39 97
4.09 84
3.83 72
3.59 60
3.36 48
3.15 37
2.97 26
2.80 16
2.65 5
2.51 -6
2.40 -16
2.32 -26
0.04 17
0.04 10
0.04 13
0.04 14
0.04 15
0.04 16
0.05 17
0.05 18
0.05 18
0.05 19
0.05 19
0.05 19
0.05 19
0.05 20
0.05 20
0.06 20
0.06 20
0.06 20
0.06 20
0.06 19
0.07 18
0.07 17
0.08 15
0.08 12
0.09 9
0.09 6
0.10 3
0.11 -1
0.11 -5
0.12 -9
0.13 -14
0.37 -11
0.36 -16
0.35 -22
0.35 -24
0.35 -26
0.35 -28
0.35 -30
0.35 -32
0.34 -34
0.34 -36
0.34 -38
0.34 -39
0.34 -41
0.34 -42
0.33 -44
0.33 -45
0.33 -46
0.33 -48
0.32 -49
0.32 -51
0.30 -58
0.28 -66
0.25 -75
0.23 -86
0.22 -97
0.21 -108
0.20 -121
0.20 -132
0.19 -141
0.18 -149
0.17 -162
16.1 2.3 8.5 19.2
15.6 2.9 8.9 18.2
15.2 3.2 9.2 17.6
15.1 3.3 9.2 17.3
14.9 3.5 9.2 17.1
14.8 3.6 9.2 16.9
14.7 3.7 9.2 16.7
14.5 3.8 9.2 16.5
14.4 3.9 9.3 16.3
14.2 4.0 9.3 16.1
14.0 4.2 9.4 15.9
14.0 4.3 9.4 15.7
13.8 4.5 9.4 15.5
13.7 4.6 9.5 15.3
13.5 4.7 9.5 15.1
13.4 4.9 9.6 14.9
13.3 5.0 9.7 14.7
13.1 5.1 9.7 14.5
13.0 5.2 9.8 14.4
12.9 5.4 9.9 14.2
12.2 6.0 10.5 13.4
11.7 6.6 11.1 12.6
11.1 7.0 11.9 12.0
10.5 7.4 12.6 11.4
10.0 7.5 13.2 10.8
9.5 7.5 13.5 10.3
8.9 7.3 14.0 9.8
8.5 7.1 14.2 9.4
8.0 7.3 14.6 8.9
7.6 7.6 14.9 8.4
7.3 7.4 15.4 8.1
(dB)
-28.2
-27.8
-27.5
-27.3
-27.2
-27.0
-26.8
-26.6
-26.5
-26.3
-26.1
-25.9
-25.7
-25.5
-25.3
-25.2
-25.0
-24.8
-24.7
-24.5
-23.7
-23.1
-22.4
-21.8
-21.2
-20.6
-20.0
-19.4
-18.9
-18.2
-17.4
Freq.
(GHz)
0.80
0.90
1.00
1.50
1.80
1.90
2.00
2.10
2.20
2.30
2.40
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
NFmin
(dB)
1.61
1.46
1.51
1.70
1.81
1.83
1.85
1.85
1.86
1.88
1.89
1.90
1.95
1.99
2.02
2.09
2.13
2.23
2.23
opt
Mag Ang
0.43 36
0.43 37
0.46 40
0.39 53
0.35 64
0.34 67
0.33 71
0.33 74
0.32 77
0.32 81
0.32 84
0.31 87
0.30 103
0.29 122
0.29 143
0.30 163
0.32 -178
0.34 -161
0.38 -138
Rn/Zo
0.41
0.44
0.39
0.87
0.33
0.32
0.31
0.31
0.30
0.29
0.28
0.27
0.24
0.20
0.16
0.14
0.13
0.14
0.18
Ga
(dB)
15.94
15.83
15.80
14.86
14.30
14.13
13.97
13.82
13.68
13.53
13.41
13.26
12.60
12.01
11.44
10.91
10.40
9.97
9.58
|opt|RL
(dB)
7.42
7.27
6.81
8.21
9.20
9.47
9.65
9.69
9.82
9.99
9.98
10.01
10.54
10.75
10.79
10.60
10.03
9.38
8.43
Rn
(Ω)
20.58
21.84
19.69
43.44
16.67
16.16
15.72
15.27
14.96
14.39
14.13
13.72
12.01
9.93
8.22
7.17
6.74
7.17
9.17
P1dB
(dBm)
17.0
17.0
16.9
16.7
16.9
16.8
17.1
16.9
17.1
17.1
17.2
17.2
17.5
17.3
17.5
17.8
17.5
16.6
16.0
OIP3
(dBm)
28.0
28.2
28.4
28.5
27.7
27.9
27.8
28.1
28.2
28.4
28.6
28.8
28.4
28.8
28.7
29.2
29.0
27.9
29.0
IIP3
(dBm)
13.3
13.5
13.6
14.1
14.2
14.2
14.8
15.0
15.3
15.5
15.6
15.9
16.2
16.9
17.4
18.6
18.8
18.5
19.9
11
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet MGA-72543.PDF ] | |
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