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부품번호 | MGA-725M4 기능 |
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기능 | Low Noise Amplifier | ||
제조업체 | AVAGO | ||
로고 | |||
전체 19 페이지수
MGA-725M4
Low Noise Amplifier with Bypass Switch
In Miniature Leadless Package
Data Sheet
Description
Avago Technologies’s MGA-725M4 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-725M4 features a typical noise figure of 1.4 dB
and 14.4 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-725M4 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-725M4 provides suitable gain and linearity to meet
the ACPR requirement when the handset transmits the
highest power. When transmitting lower power, the
MGA-725M4 can be bypassed, saving the drawing current.
The MGA-725M4 is a GaAs MMIC, processed on Avago’s
cost effective PHEMT (Pseudomorphic High Electron
Mobility Transistor). It is housed in the MiniPak 1412
package. It is part of the Avago Technologies CDMAdvan-
tage RF chipset.
Simplified Schematic
Features
• Operating frequency:
0.1 GHz ~ 6.0 GHz
• Noise figure:
1.2 dB at 800 MHz
1.4 dB at 1900 MHz
• Gain:
17.5 dB at 800 MHz
15.7 dB at 1900 MHz
• Bypass switch on chip
Loss = typ
IIP3 = +10
1.6 dB
dBm
(Id
<
5
µA)
• Adjustable Input IP3:
+2 to +14.7 dBm
• Miniature package:
1.4 mm x 1.2 mm
2.7 V to 5.0 V operation
Applications
• CDMA (IS-95, J-STD-008) Receiver LNA
• Transmit Driver Amp
• TDMA (IS-136) handsets
MiniPak 1.4 mm x 1.2 mm Package
Ax
Pin Connections and Package Marking
Control
Input
&
Vref
GainFET
Output
& Vd
GND GND
GROUND
INPUT
Ax
OUTPUT
GROUND
MGA-725M4 Typical Performance, continued
F2rteeqsut esynsctyem= 2(i.0npGuHtza,nTcd=o2u5tp°Cu,tZpor=es5e0nΩte,dVdto= 530VΩ, I)d. = 20 mA unless stated otherwise. All data as measured in Figure
14
12
10
8
6
4
2.7 V
2 3.0V
3.3 V
00 1 2 3 4 5 6
FREQUENCY (GHz)
Figure 12. Output Power at 1 dB Compression vs.
Frequency and Voltage.
14
12
10
8
6
4
2.7 V
2 3.0V
3.3 V
00 1 2 3 4 5 6
FREQUENCY (GHz)
Figure 13. Output Power at 1 dB Compression vs.
Frequency and Temperature.
18
16
14
12
10
8
6
4 10 mA
20 mA
2 40 mA
00 1 2 3 4 5 6
FREQUENCY (GHz)
Figure 14. Input Third Order Intercept Point vs.
Frequency and Current.
4
3
2
1
-40 C
+25 C
+85 C
0
0 20 40 60 80
Id CURRENT (mA)
Figure 15. Noise Figure vs. Current and
Temperature.
18
16
14
12
10
8
6
4 -40 C
2
+25 C
+85 C
0
0 20 40 60
Id CURRENT (mA)
Figure 16. Associated Gain vs. Current and
Temperature.
80
18
16
14
12
10
8
6
4 -40 C
2
+25 C
+85 C
0
0 20 40 60 80
Id CURRENT (mA)
Figure 17. Input Third Intercept Point vs. Current
and Temperature.
18
16
14
12
10
8
6
4 -40 C
2
+25 C
+85 C
0
0 20 40
60 80
Id CURRENT (mA)
Figure 18. Output Power at 1 dB Compression vs.
Current and Temperature.
14
Input
12
Output
Gamma
10
8
6
4
2
0
0 10 20 30 40 50 60
Id CURRENT (mA)
Figure 19. LNA on VSWR and Gamma Opt vs. Current.
1.00
0.80
0.60
0.40
0.20
-40 C
+25 C
+85 C
0
0 10 20 30 40 50
Id CURRENT (mA)
Figure 20. Control Voltage vs. Current and
Temperature.
60
4페이지 MGA-725M4 Typical Scattering Parameters and Noise Parameters
TC = 25°C, Vd = 3.0V, Id= 10 mA, ZO = 50Ω (test circuit of Figure 2)
Freq
(GHz)
SM1a1 g.
SA1n1 g.
MS2a1 g.
SA2n1 g. SM1a2 g.
SA1n2 g.
SM2a2 g.
0.10 0.79 -9
5.57 174 0.05
0.50 0.68 -26 5.68 163 0.05
0.80 0.65 -39 5.47 154 0.06
0.90 0.66 -43 5.40 152 0.06
1.00 0.64 -46 5.33 149 0.06
1.10 0.64 -50 5.25 147 0.06
1.20 0.63 -54 5.18 144 0.06
1.30 0.63 -58 5.10 142 0.06
1.40 0.62 -61 5.03 139 0.07
1.50 0.62 -64 4.95 137 0.07
1.60 0.62 -68 4.88 134 0.07
1.70 0.61 -71 4.81 132 0.07
1.80 0.61 -74 4.73 130 0.07
1.90 0.61 -77 4.65 128 0.07
2.00 0.60 -81 4.58 125 0.07
2.10 0.60 -84 4.51 123 0.08
2.20 0.60 -87 4.45 121 0.08
2.30 0.60 -89 4.36 119 0.08
2.40 0.59 -92 4.29 117 0.08
2.50 0.59 -95 4.23 115 0.08
3.00 0.59 -108 3.91 105 0.09
3.50 0.58 -119 3.62 96
0.09
4.00 0.57 -130 3.36 88
0.10
4.50 0.57 -140 3.13 80
0.10
5.00 0.57 -149 2.93 73
0.11
5.50 0.56 -157 2.76 66
0.11
6.00 0.55 -166 2.58 57
0.11
6.50 0.55 -172 2.30 48
0.11
7.00 0.54 -179 2.25 45
0.12
7.50 0.50 170 2.19 39
0.13
8.00 0.51 164 2.09 33
0.13
19
13
16
18
19
20
21
21
22
23
23
23
24
24
24
24
24
24
24
24
23
23
22
21
20
20
17
17
17
16
15
0.48
0.40
0.39
0.39
0.39
0.39
0.38
0.38
0.38
0.38
0.38
0.37
0.37
0.37
0.37
0.37
0.36
0.36
0.36
0.36
0.35
0.34
0.34
0.33
0.33
0.32
0.32
0.32
0.31
0.31
0.31
SA2n2 g.
-9
-15
-21
-24
-26
-28
-31
-33
-35
-37
-39
-42
-44
-46
-48
-50
-51
-54
-55
-57
-66
-73
-81
-88
-94
-100
-113
-122
-133
-137
-139
S(d21B )
14.9
15.1
14.8
14.6
14.5
14.4
14.3
14.2
14.0
13.9
13.8
13.6
13.5
13.4
13.2
13.1
13.0
12.8
12.7
12.5
11.8
11.2
10.5
9.9
9.3
8.8
8.2
7.2
7.0
6.8
6.4
R(dLBin)
-2.0
-3.4
-3.7
-3.7
-3.9
-3.9
-4.1
-4.1
-4.2
-4.2
-4.2
-4.3
-4.3
-4.3
-4.4
-4.4
-4.5
-4.5
-4.5
-4.5
-4.6
-4.7
-4.8
-4.9
-5.0
-5.1
-5.1
-5.3
-5.4
-6.0
-5.8
R(dLBou)t
-6.4
-8.1
-8.2
-8.2
-8.3
-8.3
-8.3
-8.4
-8.4
-8.4
-8.5
-8.5
-8.6
-8.6
-8.7
-8.7
-8.8
-8.8
-8.8
-8.9
-9.1
-9.3
-9.5
-9.6
-9.8
-9.9
-9.9
-9.9
-10.1
-10.1
-10.1
G(dmBax)
20.7
18.2
17.9
18.0
17.8
17.8
17.8
17.9
17.9
18.2
18.6
18.4
18.2
18.0
17.9
17.7
17.6
17.5
17.3
17.2
16.5
15.9
15.4
14.9
14.4
14.0
12.5
10.5
10.3
9.6
9.3
Isolation
(dB)
-26.6
-25.4
-24.9
-24.7
-24.6
-24.4
-24.2
-24.0
-23.7
-23.5
-23.3
-23.1
-23.0
-22.7
-22.6
-22.4
-22.3
-22.2
-21.9
-21.8
-21.2
-20.6
-20.3
-19.9
-19.5
-19.2
-18.9
-19.1
-18.4
-17.9
-17.5
Freq
(GHz)
0.8
0.9
1.0
1.5
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
N(dFBm)in
1.20
1.20
1.24
1.28
1.30
1.31
1.34
1.36
1.38
1.40
1.40
1.40
1.42
1.47
1.50
1.54
1.61
1.64
1.72
GAMMA
Mag
0.35
0.35
0.34
0.29
0.26
0.24
0.20
0.19
0.19
0.19
0.18
0.18
0.19
0.20
0.22
0.23
0.23
0.25
0.29
OPT Rn
Ang
36 14.5
39 11.9
48 11.5
60 10.5
64 10.2
68 10.1
66 9.5
68 9.1
74 9.0
76 9.0
75 8.7
83 8.6
91 8.1
109 7.7
117 7.3
130 7.2
144 6.6
153 6.1
167 5.7
G(daB)
17.5
16.6
16.5
15.9
15.4
15.3
14.6
14.4
14.2
14.2
13.9
13.9
13.4
12.6
12.1
11.4
10.9
10.4
9.8
7페이지 | |||
구 성 | 총 19 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
MGA-725M4 | Low Noise Amplifier with Bypass Switch In Miniature Leadless Package | Hewlett-Packard |
MGA-725M4 | Low Noise Amplifier | AVAGO |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |