ETC WHM2040AE

REV B
www.wantcominc.com
1.8 – 4.0 GHz LOW NOISE AMPLIFIER WHM2040AE1
WHM2040AE LNA is a low noise figure, wideband, and high linear SMT
packaged amplifiers with unconditional stable design. The amplifier offers typical
1.10 dB noise figure and 26 dBm output IP3 at the frequency range from 1.8 GHz to
4.0 GHz of DCS, PCS, 3G, ISM, S, and C bands. WHM2040AE LNA is most suitable
for cellular base stations, wireless data communications, tower top receiver amplifiers,
last-mile wireless communication systems, and wireless measurement applications.
WHM2040AE is designed to meet the rugged standards of MIL-STD-202
and MIL-STD-883.
Key Features:
Impedance:
MTBF2:
LGA (land grid array) package:
Unconditional Stable:
Low Noise:
Output IP3:
Gain:
P1dB:
Single power supply:
Frequency Range:
Operating Temperature:
Return Losses:
Small size:
Built-in Functions:
50 Ohm
>600,000 hrs (68 Years)
6-pin
k>1
1.10 dB
26.0 dBm
26.0 dB
13.0 dBm
50 mA @ +5V
1.8 ~ 4.0 GHz
-40 ~ +85 ºC
16 dB Typical
0.30” x 0.30” x 0.060” (7.62 mm x 7.62 mm x 1.52 mm)
DC blocks at input and output, temperature compensation
circuits, and auto DC biases.
Absolute Maximum Ratings3:
Symbol
Parameters
Units
Absolute Maximum
Vdd
DC Power Supply Voltage
V
7.0
Idd
Drain Current
mA
70
Pdiss
Total Power Dissipation
mW
400
PIn,Max
RF Input Power
dBm
10
Tch
Channel Temperature
°C
150
TSTG
Storage Temperature
°C
-65 ~ 150
TO,MAX
Maximum Operating
Temperature
°C
-55 ~ 100
Rth,c
Thermal Resistance
°C/W
215
Specifications are subject to change without notice.
MTBF: Mean Time Between Failure, Per TR-NWT-000332, ISSUE 3, SEPTEMBER, 1990, T=40 oC
3 Operation of this device above any one of these parameters may cause permanent damage.
1
2
1
REV B
www.wantcominc.com
Specifications:
a) Table 1 Summary of the electrical specifications WHM2040AE at room temperature
Index
Testing Item
Symbol
Test Constraints
Nom (RT)
Min
1
2
3
4
Gain
S21
25
∆G
1.8 – 4.0 GHz
1.8 – 4.0 GHz
26
Gain Variation
+/- 1
Input Return Loss
S11
1.8 – 4.0 GHz
18
14
dB
Output Return Loss
S22
1.8 – 4.0 GHz
18
14
dB
5
Reverse Isolation
S12
1.8 – 4.0 GHz
45
40
6
Noise figure
NF
1.8 – 4.0 GHz
1.10
7
Output Power 1dB
compression Point
P1dB
1.8 – 4.0 GHz
13
12
dBm
8
Output-Third-Order
Interception point
IP3
Two-Tone, Pout +0 dBm
each, 1 MHz separation
26
24
dBm
9
Current Consumption
Idd
Vdd= +5 V
10
Power Supply Voltage
Vdd
11
Thermal Resistance
Rth,c
12
Operating Temperature
To
Unit
+/- 1.3
dB
13
Maximum Average RF Input
Power
PIN, MAX
dB
dB
1.4
dB
50
45
55
mA
+5
+4.7
+5.3
V
215
o
C/W
+85
o
C
10
dBm
Junction to case
-40
1.8 – 4.0 GHz
Max
b) Passband Frequency Response
As shown in Figure 1, the typical gain of the WHM2040AE is 26.0 dB across 1.8 to 4.0 GHz. The typical
input and output return losses are 18 dB across the frequency of 1.8 to 4.0 GHz.
Figure 2 shows the measured P1dB and IP3 of the WHM2040AE. The typical P1dB and IP3 are 13.0 dBm and
26.0 dBm in the frequency range of 1.8 to 4.0 GHz, respectively.
Figure 3 illustrates the measured noise figure performance at full temperature. The measured results include
the test fixture loss of approximately 0.10 dB. The noise figure is 1.10 ~ 1.30 dB across the frequency range of 1.8 to
4.0 GHz at room temperature. At 85 0C, WHM2040AE only has 0.30 dB noise increases. At –40 0C, WHM2040AE
offers approximately 0.25 dB less noise figure than that at room temperature.
Figure 4 demonstrates the stability factor k of the amplifier. It is greater than 1.0 in any frequency band and
the amplifier is unconditional stable.
Figure 5 is the block diagram of internal circuit of WHM2040AE. It is a two-stage amplifier with the DC
block capacitors at the input and output RF ports. All the RF matching networks, DC bias circuitries, and temperature
compensation circuits are built in.
Figure 6 demonstrates the application schematic diagram of WHM2040AE. It may require one external
decoupling capacitor of 0.01 uF to build a LNA with WHM2040AE. The +5V DC can be applied at Pin 3. No DC
block capacitor is required for both input and output RF ports. The NC pins connected to ground are recommended.
For +5V line trace length being longer than 6 inch without a decoupling capacitor, an additional 0.01 ~ 0.1 uF decoupling capacitor with minimum rating voltage of 10V may be needed across the +5V line to ground. The capacitor
must be rated in the temperature range of -40 0C to 85 0C to ensure the entire circuit working in the specified
temperature range.
Figure 7 shows the mechanical outline and recommended motherboard layout of WHM2040AE. Plenty of
ground vias on the motherboard are essential for the RF grounding. The width of the 50-Ohm lines at the input and
output RF ports may be different for different property of the substrate.
2
REV B
www.wantcominc.com
WHM2040AE Perform ance @ 25 C
50
S11
40
S21
35
S12
WHM2040AE IP3 and P1dB
S22
30
30
25
dBm
20
dB
10
0
IP3 (dBm)
20
P1dB (dBm)
15
-10
10
-20
-30
5
Freq (GHz)
-40
-50
0.50
0
Freq (GHz)
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1
5.00
FIG. 1 Typical small signal performance.
WHM2040AE Noise Figure
10
1.8
9
1.6
8
1.4
7
1.2
6
1.0
5
0.8
0.6
0.4
0.2
k
dB
2.0
FIG. 2 Typical P1dB and IP3 at room temperature.
4
25C
3
-40C
WHM2040AE Stability factor k
k
Limit
2
85C
Freq (GHz)
0.0
1
Freq (GHz)
0
1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1
FIG. 3 Noise figure performance at full temperature
FIG. 5 Block diagram of internal circuit.
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
FIG. 4 Measured stability factor k
FIG. 6 Typical application schematic for WHM2040AE
3
REV B
www.wantcominc.com
WHM2040AE Mechanical Outline, WHM-2:
FIG. 7 WHM2040AE outline
Ordering Information
Model Number
WHM2040AE
Waffle pack with the capacity of 81 pieces (9 x 9) is used for the packing. Contact factory for tape and reel packing
option for higher volume requirements.
4
REV B
www.wantcominc.com
Small Signal S-Parameters:
!WHM2040AE
!s-parameters at Vdd=5V, Idd=50 mA, including the test board.
!Last updated 1/26/04.
# GHZ s MA R 50
!F(GHz)
MAG S11 ANG S11 MAG S21 ANG S21 MAG S12 ANG S12 MAG S22 ANG S22
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4
4.1
4.2
4.3
4.4
4.5
5
5.5
6
0.995
0.984
0.796
0.470
0.835
0.862
0.846
0.818
0.773
0.721
0.648
0.560
0.463
0.366
0.276
0.202
0.142
0.102
0.075
0.073
0.080
0.089
0.104
0.111
0.121
0.126
0.132
0.133
0.134
0.139
0.136
0.132
0.127
0.126
0.125
0.120
0.118
0.123
0.129
0.150
0.166
0.195
0.234
0.284
0.327
0.368
0.582
0.720
0.791
-17.7
-31.3
-89.4
46.1
-30.9
-61.3
-85.1
-106.6
-127.8
-149.5
-172.4
164.2
140.9
117.3
94.1
69.9
43.6
12.7
-26.8
-69.0
-99.7
-125.1
-145.3
-160.8
-177.0
171.6
158.6
143.6
132.3
122.4
110.1
96.2
81.5
71.7
54.9
37.7
18.1
1.9
-23.0
-44.0
-65.7
-84.7
-103.7
-121.1
-139.0
-155.2
127.6
57.3
-6.1
0.003
0.026
0.406
1.145
1.795
2.476
3.778
6.112
9.485
13.289
16.899
19.914
22.149
23.560
24.222
24.349
24.062
23.591
22.980
22.424
21.911
21.401
20.886
20.472
20.070
19.762
19.520
19.328
19.092
18.925
18.817
18.763
18.668
18.716
18.799
18.856
18.933
19.053
19.194
19.289
19.264
19.162
18.900
18.448
17.832
17.093
11.628
6.807
4.135
3.7
-13.3
-80.2
-151.6
161.7
140.4
125.1
106.0
80.7
52.7
23.7
-4.6
-31.8
-57.2
-80.9
-102.8
-123.2
-142.2
-160.0
-176.9
166.9
151.5
136.7
122.1
107.8
93.5
79.9
66.5
52.9
39.3
25.8
12.5
-1.0
-14.6
-28.1
-41.6
-55.5
-69.7
-84.4
-99.4
-114.6
-130.2
-146.0
-162.4
-179.3
164.2
82.4
7.7
-57.8
0.000020
0.000054
0.000266
0.000669
0.000676
0.000870
0.001285
0.001660
0.001956
0.002356
0.002695
0.002946
0.003186
0.003406
0.003666
0.003783
0.003929
0.004076
0.004189
0.004341
0.004419
0.004493
0.004453
0.004527
0.004541
0.004538
0.004540
0.004491
0.004439
0.004433
0.004373
0.004198
0.004182
0.004042
0.003727
0.003602
0.003230
0.003022
0.002609
0.002113
0.001530
0.000738
0.000544
0.000944
0.001836
0.002697
0.006909
0.009219
0.009532
-40.6
-141.2
-159.6
97.3
55.8
30.6
1.3
-30.9
-68.4
-101.4
-131.7
-159.5
178.6
158.6
139.8
125.3
110.3
97.2
85.5
73.3
63.5
54.8
45.0
37.8
29.5
23.2
14.8
7.3
-0.6
-6.9
-15.3
-21.0
-27.8
-36.9
-44.3
-49.7
-57.5
-65.9
-77.0
-87.1
-106.4
-132.0
162.3
95.7
71.4
57.0
-3.4
-45.2
-82.3
0.984
0.953
0.881
0.808
0.745
0.684
0.598
0.486
0.357
0.240
0.154
0.091
0.059
0.055
0.069
0.085
0.096
0.104
0.112
0.118
0.122
0.122
0.126
0.126
0.126
0.125
0.127
0.127
0.122
0.124
0.122
0.114
0.109
0.106
0.097
0.087
0.085
0.085
0.095
0.116
0.147
0.196
0.245
0.301
0.366
0.432
0.677
0.782
0.815
-15.8
-25.8
-49.4
-71.1
-92.3
-115.5
-140.9
-166.7
169.4
150.2
136.9
132.0
145.2
162.3
169.1
162.1
151.0
137.6
124.8
111.8
96.5
84.2
71.4
58.1
45.6
32.4
20.7
7.5
-4.3
-16.7
-28.5
-43.3
-58.0
-73.3
-92.8
-112.2
-139.3
-169.7
158.6
127.9
104.6
81.3
59.8
41.1
23.3
6.2
-71.5
-132.3
174.2
******
5