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Número de pieza | ALM-GA001 | |
Descripción | Low Current Low Noise Amplifier | |
Fabricantes | AVAGO | |
Logotipo | ||
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No Preview Available ! ALM-GA001
High-Gain, Low Current Low Noise Amplifier
with Variable Current and Shutdown Function
Data Sheet
Description
Avago Technologies’ ALM-GA001 is a low-noise amplifier
(LNA) designed for GPS/ISM/WiMAX applications in the
(0.9-3.5) GHz frequency range. The LNA uses Avago Tech-
nologies’ proprietary GaAs Enhancement-mode pHEMT
process to achieve high gain with very low noise figure
and high linearity. Noise figure distribution is very tightly
controlled. A CMOS-compatible shutdown pin is included
either for turning the LNA on/off, or for current adjust-
ment.
The low noise figure and high gain, coupled with low cur-
rent consumption make it suitable for use in critical low-
power GPS applications or during low-battery operation.
Component Image
Surface Mount 1.5x1.2x0.5 mm3 6-lead uDFN
PIN 1 PIN 6
PIN 2
AY
WW
PIN 5
PIN 3 PIN 4
Top View
PIN 6: NC
PIN 1: Vsd
PIN 5: RFout/Vdd GND PIN 2: RFin
PIN 4: NC
PIN 3: NC[1]
Bottom View
Note:
Package marking provides orientation and identification
“AY” = Product Code
“WW” = Work Week
[1] PIN 3 must be left unconnected
Attention: Observe precautions for han-
dling electrostatic sensitive devices.
ESD Machine Model = 50 V
ESD Human Body Model = 250 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
Features
• Operating temperature range -40 to +85 °C
• Very Low Noise Figure : 0.97 dB typical
• High Gain : 17.9 dB typical
• High IIP3 and IP1dB
• Advanced GaAs E-pHEMT
• Low external component count
• Shutdown current : < 5 µA
• CMOS compatible shutdown pin (SD) current at 2.7 V
drawing 80 µA
• Useable down to 1.8 V supply
• Adjustable current via single external resistor/voltage
• Small package dimension: 1.5(L)x1.2(W)x0.5(H) mm3
Specifications (Typical performance @ 25°C)
At 1.575GHz
• Vdd = 2.7V, Vsd = 2.7V, Idd = 3.3mA,
– Gain = 17.9 dB
– NF = 0.97 dB
– IIP3 = -2.0 dBm, IP1dB = -9.7 dBm
– S11 = -9.3 dB, S22 =-13 dB
• Vdd = 3.3V, Vsd = 3.3V, Idd = 6.0 mA,
– Gain = 19.6 dB
– NF = 0.87 dB
– IIP3 = -0.2 dBm, IP1dB = -8.7 dBm
– S11 = -9.5 dB, S22 =-20 dB
Application
• LNA for GPS, Cellular, PCS , UMTS, WLAN, WiMAX, LTE
applications.
Vsd Vdd
L1
RF in
L2
BIAS CIRCUIT
C2
L3
C1 RF out
1 page Vsd
C4[1]=330 pF
R2=27 kohm
L1=10 nH
RF in
L2=18 nH
1
2
3
Vdd
R1[1]=10 ohm
Bias control circuit
6
5
L4[1]=22 nH
C3[1]=0.1 uF
C2=39 pF
L3=2.2 nH
C1=1.0 pF
RF out
GND 4
Notes:
1. R1, L4, C3, and C4 are not required in actual application. These are added on demoboard to mitigate power supply noise in the test
environment.
2. Pin 3 must be left unconnected.
3. L1and L2 form the input matching network. C1, C2 and L3 form a matching network at the output of the LNA.
4. Bias control is achieved by either varying the SD voltage with/ without R2, or fixing the SD voltage to Vdd and adjusting R2 for desired
current. R2 = 27 kohm will result in 3.3mA.
Figure 2. Demo board and application schematic diagram for 1.575 GHz
5
5 Page ALM-GA001 Scattering Parameter Measurement with Vdd=1.8V, Idd=3.3mA
The S-parameters measurement reference planes are described in Figure 27. The PCB is 10mils Rogers RO4350
Freq (GHz)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.575
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
magS11
0.9950
0.9909
0.9855
0.9787
0.9711
0.9622
0.9527
0.9422
0.9306
0.9201
0.9087
0.8950
0.8809
0.8664
0.8520
0.8465
0.8371
0.8218
0.8070
0.7915
0.7761
0.7621
0.7475
0.7336
0.7196
0.7064
0.6933
0.6809
0.6685
0.6568
0.6450
0.6348
0.6237
0.6137
0.6041
0.5949
0.5559
0.5010
0.4427
0.3874
0.3792
0.4036
0.4046
0.4236
0.4477
0.4009
0.3892
0.3452
0.2991
0.2439
0.1454
0.2180
0.4335
angS11
-2.64
-5.37
-8.14
-10.92
-13.59
-16.21
-18.73
-21.36
-23.86
-25.79
-27.70
-30.11
-32.53
-34.90
-37.27
-37.89
-39.58
-41.86
-44.01
-46.18
-48.29
-50.34
-52.36
-54.31
-56.20
-58.03
-59.84
-61.61
-63.30
-64.98
-66.61
-68.24
-69.87
-71.41
-73.06
-74.54
-82.17
-95.75
-106.43
-123.00
-144.86
-162.34
177.73
151.10
132.16
116.28
113.01
87.82
60.89
54.79
64.57
138.48
106.92
magS21
3.2341
3.1876
3.1683
3.1313
3.0769
3.0210
2.9635
2.8997
2.8316
2.7183
2.6201
2.5573
2.4916
2.4219
2.3487
2.1122
2.2713
2.1945
2.1137
2.0303
1.9498
1.8686
1.7874
1.7063
1.6273
1.5498
1.4740
1.3990
1.3264
1.2566
1.1889
1.1225
1.0581
0.9964
0.9368
0.8796
0.6214
0.2514
0.1032
0.2420
0.3667
0.4650
0.5524
0.6183
0.6661
0.7093
0.7105
0.7264
0.7302
0.7222
0.7066
0.5878
0.5786
angS21
176.15
168.45
161.54
155.10
149.26
143.46
137.75
132.03
126.42
121.52
116.65
111.08
105.58
100.13
94.67
90.50
89.33
84.04
78.85
73.75
68.68
63.71
58.84
54.10
49.39
44.76
40.23
35.76
31.40
27.08
22.81
18.62
14.44
10.39
6.33
2.31
-17.26
-59.80
-167.99
116.43
85.51
63.76
43.93
24.03
5.00
-13.57
-20.29
-34.96
-49.15
-63.52
-80.77
-97.08
-93.09
magS12
0.0023
0.0036
0.0053
0.0075
0.0091
0.0108
0.0123
0.0139
0.0152
0.0162
0.0171
0.0182
0.0192
0.0199
0.0206
0.0209
0.0211
0.0216
0.0218
0.0219
0.0216
0.0216
0.0212
0.0209
0.0205
0.0199
0.0191
0.0187
0.0180
0.0174
0.0167
0.0162
0.0161
0.0158
0.0157
0.0161
0.0220
0.0485
0.0899
0.1406
0.1948
0.2592
0.3374
0.4184
0.4986
0.5821
0.6051
0.6588
0.6982
0.7189
0.7198
0.6013
0.5482
angS12
78.10
78.10
78.44
78.69
75.89
72.39
70.73
67.19
65.42
63.14
61.91
60.01
57.17
55.39
52.87
50.85
51.28
49.77
48.20
46.54
45.36
44.12
42.98
42.85
43.11
42.93
43.88
44.81
46.58
49.11
51.79
55.79
59.95
65.08
71.12
75.66
99.37
110.78
104.26
90.57
76.45
63.07
47.94
30.29
11.75
-7.85
-14.03
-30.54
-47.27
-65.01
-86.81
-108.76
-115.87
magS22
0.7983
0.7968
0.7921
0.7897
0.7919
0.7957
0.7996
0.8051
0.8106
0.8175
0.8236
0.8298
0.8358
0.8427
0.8488
0.8552
0.8557
0.8626
0.8697
0.8770
0.8841
0.8905
0.8975
0.9036
0.9097
0.9159
0.9209
0.9263
0.9309
0.9355
0.9396
0.9435
0.9467
0.9505
0.9534
0.9557
0.9647
0.9691
0.9510
0.9182
0.8878
0.8469
0.7860
0.7230
0.6653
0.6045
0.5959
0.5640
0.5239
0.4893
0.4618
0.5189
0.3983
angS22
-5.23
-12.21
-18.60
-24.89
-30.92
-36.95
-42.88
-48.75
-54.50
-58.86
-63.25
-68.97
-74.50
-79.93
-85.33
-91.78
-90.54
-95.66
-100.69
-105.55
-110.27
-114.90
-119.36
-123.68
-127.93
-132.01
-135.99
-139.84
-143.62
-147.25
-150.81
-154.24
-157.64
-160.87
-164.05
-167.17
178.87
156.77
135.91
113.58
96.48
84.96
74.01
62.90
49.83
35.03
27.82
25.33
25.74
16.06
6.02
1.63
-27.87
11
11 Page |
Páginas | Total 18 Páginas | |
PDF Descargar | [ Datasheet ALM-GA001.PDF ] |
Número de pieza | Descripción | Fabricantes |
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