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PDF MGA-725M4 Data sheet ( Hoja de datos )
| Número de pieza | MGA-725M4 | |
| Descripción | Low Noise Amplifier | |
| Fabricantes | AVAGO | |
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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
1 page  
MGA-725M4 Typical Scattering Parameters: Bypass Mode
Tc = 25°C, Vd = 3.0 V, Id= 0 mA, Zo = 50Ω (test circuit of Figure 2)
Freq
(GHz)
SM1a1 g.
SA1n1 g.
SM2a1 g.
SA2n1 g.
SM1a2 g. SA1n2 g.
0.1 0.991 -11.1 0.175 74.9 0.175 75.5
0.5 0.741 -44.1 0.592 37.9 0.593 38.1
0.8
0.580 -5.8
0.710 22.8
0.709 22.9
0.9 0.536 -61.8 0.733 18.9 0.732 19.0
1.0 0.498 -64.6 0.751 15.4 0.750 15.6
1.1 0.468 -66.8 0.764 12.5 0.763 12.4
1.2 0.442 -69.2 0.775 9.7
0.774 9.8
1.3 0.418 -70.9 0.783 7.1
0.783 7.3
1.4 0.395 -72.6 0.793 4.7
0.791 5.0
1.5 0.378 -74.7 0.797 2.7
0.796 2.7
1.6 0.362 -76.0 0.799 0.5
0.800 0.7
1.7 0.349 -77.6 0.805 -1.5
0.805 -1.3
1.8 0.334 -78.9 0.809 -3.3
0.809 -3.1
1.9 0.326 -79.9 0.811 -5.1
0.811 -5.1
2.0 0.357 -85.4 0.826 -8.5
0.827 -8.3
2.1 0.345 -86.0 0.826 -10.2 0.827 -10.0
2.2 0.338 -86.6 0.825 -11.5 0.825 -11.5
2.3 0.326 -87.7 0.826 -13.2 0.825 -12.9
2.4 0.321 -87.9 0.825 -14.7 0.824 -14.4
2.5 0.319 -88.9 0.825 -14.6 0.824 -14.6
3.0 0.288 -93.8 0.820 -21.2 0.820 -21.4
3.5 0.272 -97.0 0.816 -27.4 0.815 -27.4
4.0 0.263 -101.4 0.810 -33.5 0.811 -33.6
4.5 0.256 -106.1 0.807 -39.3 0.806 -39.2
5.0 0.249 -110.9 0.800 -45.2 0.800 -45.2
5.5 0.243 -114.8 0.793 -50.7 0.795 -50.7
6.0 0.229 -117.1 0.781 -57.0 0.783 -57.0
6.5 0.227 -125.3 0.774 -62.6 0.773 -62.6
7.0 0.218 -130.1 0.764 -68.1 0.768 -67.9
7.5 0.221 -137.5 0.758 -73.5 0.760 -73.2
8.0 0.224 -144.2 0.749 -79.1 0.753 -78.9
SM2a2 g.
0.943
0.624
0.470
0.429
0.400
0.371
0.346
0.328
0.309
0.293
0.281
0.267
0.258
0.247
0.243
0.238
0.230
0.228
0.222
0.218
0.206
0.198
0.195
0.192
0.190
0.191
0.260
0.256
0.252
0.243
0.230
SA2n2 g.
-15.1
-51.1
-64.1
-67.3
-69.6
-72.3
-74.0
-75.8
-77.2
-78.2
-79.5
-80.4
-80.9
-81.8
-86.5
-87.8
-88.5
-89.3
-90.6
-90.1
-94.6
-98.8
-103.8
-108.9
-114.5
-119.7
-138.9
-146.5
-153.6
-159.8
-166.5
S(d11B )
-0.08
-2.61
-4.74
-5.41
-6.05
-6.60
-7.09
-7.58
-8.06
-8.45
-8.84
-9.14
-9.53
-9.74
-8.96
-9.25
-9.43
-9.73
-9.87
-9.92
-10.81
-11.31
-11.59
-11.84
-12.07
-12.30
-12.81
-12.88
-13.25
-13.11
-12.98
S(d21B )
-15.12
-4.55
-2.97
-2.70
-2.49
-2.34
-2.22
-2.12
-2.02
-1.98
-1.94
-1.88
-1.84
-1.82
-1.66
-1.66
-1.67
-1.66
-1.67
-1.67
-1.72
-1.76
-1.83
-1.86
-1.94
-2.01
-2.14
-2.23
-2.34
-2.40
-2.51
S(d12B )
-15.16
-4.54
-2.99
-2.71
-2.50
-2.35
-2.22
-2.13
-2.04
-1.98
-1.94
-1.89
-1.84
-1.82
-1.65
-1.65
-1.67
-1.67
-1.69
-1.68
-1.72
-1.77
-1.82
-1.88
-1.93
-2.00
-2.13
-2.23
-2.30
-2.39
-2.46
S(d22B)
-0.51
-4.09
-6.57
-7.34
-7.95
-8.61
-9.21
-9.68
-10.19
-10.65
-11.03
-11.46
-11.75
-12.13
-12.29
-12.47
-12.77
-12.86
-13.06
-13.24
-13.74
-14.06
-14.18
-14.33
-14.41
-14.39
-11.69
-11.83
-11.99
-12.28
-12.75
5 Page 
MGA-725M4 Typical Scattering Parameters— Zero Bias
TC = 25°C, Vd = 0V, Id = 0 mA, ZO = 50Ω (test circuit of Figure 2)
Freq
(GHz)
SM1a1 g. AS1n1 g.
MS2a1 g.
SA2n1 g.
SM1a2 g.
SA1n2 g.
0.1 0.07 -116 0.04 10 0.04 10
0.5 0.31 -136 0.06 28 0.06 29
0.8 0.42 -143 0.07 30 0.07 30
1.2 0.52 -154 0.09 28 0.09 28
1.6 0.58 -163 0.09 26 0.09 26
2.0 0.62 -170 0.10 24 0.10 25
2.4 0.64 -176 0.11 24 0.11 24
2.8
0.66 178
0.11 23
0.11 23
3.2
0.67 173
0.12 23
0.12 23
3.6
0.69 168
0.12 23
0.12 23
3.8
0.69 166
0.12 23
0.13 23
4.0
0.69 163
0.13 23
0.13 23
4.4
0.70 159
0.13 22
0.13 23
4.8
0.71 154
0.14 22
0.14 22
5.2
0.72 150
0.15 22
0.15 22
5.6
0.72 145
0.16 20
0.16 21
6.0
0.72 142
0.16 17
0.16 17
MS2a2 g.
0.83
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.84
0.84
0.84
0.84
0.83
0.83
SA2n2 g.
179
176
174
171
168
165
162
159
156
153
151
149
146
143
139
135
135
(Sd21B )
-27.3
-24.7
-22.9
-21.4
-20.5
-20.0
-19.5
-19.2
-18.7
-18.3
-18.1
-17.9
-17.5
-17.0
-16.5
-16.0
-15.7
(RdLBin)
-23.2
-10.2
-7.5
-5.6
-4.7
-4.2
-3.8
-3.6
-3.4
-3.3
-3.2
-3.2
-3.1
-3.0
-2.9
-2.8
-2.9
(RdLBou)t
-1.6
-1.4
-1.4
-1.4
-1.4
-1.4
-1.4
-1.4
-1.4
-1.5
-1.5
-1.5
-1.5
-1.5
-1.5
-1.6
-1.6
Isolation
(dB)
-27.3
-24.7
-22.9
-21.4
-20.5
-19.9
-19.5
-19.1
-18.7
-18.3
-18.1
-17.9
-17.5
-17.0
-16.5
-16.0
-15.7
Ordering Information
Part Number
MGA-725M4-TR1
MGA-725M4-TR2
MGA-725M4-BLK
Devices Per Container
3000
10000
100
Container
7” Reel
13”Reel
antistatic bag
MiniPak Package Outline Drawing
1.44 (0.057)
1.40 (0.055)
1.20 (0.047)
1.16 (0.046)
0.70 (0.028) MAX
Solder Pad Dimensions
GROUND
OUTPUT
1.12 (0.045)
1.08 (0.043)
0.82 (0.033)
0.78 (0.031)
INPUT GROUND
0.00
-0.07 (-0.003)
-0.03 (-0.001)
0.42 (0.017)
0.38 (0.015)
0.92 (0.037) 1.32 (0.053)
0.88 (0.035) 1.28 (0.051)
0.32 (0.013)
0.28 (0.011)
0.00
-0.07 (-0.003)
-0.03 (-0.001)
Note: Pad orientation is shown as viewed from top of package.
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MGA-725M4.PDF ] | |
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