ETC WHM2535-12AE

REV B
www.wantcominc.com
2.5 – 3.5 GHz LOW NOISE AMPLIFIER WHM2535-12AE1
WHM2535-12AE LNA is a low noise figure, wideband, and high linearity
SMT packaged amplifier. The amplifier offers typical noise figure of 0.90 dB
and output IP3 of 31.0 dBm at the frequency range from 2.50 GHz to 3.50 GHz
of L, S, and C bands. WHM2535-12AE provides excellent performance
consistency between each part due to the high volume precision production
with advance quality control. WHM2535-12AE LNA is most suitable for
cellular base stations, wireless data communications, tower top receiver
amplifiers, last-mile wireless communication systems, and wireless
measurement applications.
Key Features:
Impedance:
MTBF2:
LGA (land grid array) package:
Low Noise:
Output IP3:
Gain:
P1dB:
Single power supply:
Frequency Range:
Operating Temperature:
Input Return Losses:
Output Return Losses:
Small size:
Built-in Functions:
50 Ohm
>1,500,000 hrs (171 Years)
6-pin
0.90 dB
31 dBm
14.0 dB
14.0 dBm
30 mA @ +5V
2.5 ~ 3.5 GHz
-40 ~ +85 ºC
16 dB or better
20 dB or better
0.25” x 0.25” x 0.060” (5.0 mm x 5.0 mm x 1.52 mm)
DC blocks at input and output, temperature compensation
circuits, and auto DC biases.
Specifications:
a) Table 1 Summary of the electrical specifications WHM2535-12AE at room temperature
Index
Testing Item
Symbol
Test Constraints
Nom (RT)
Min
1
2
Gain
S21
13.0
∆G
2.5 – 3.5 GHz
2.5 – 3.5 GHz
14
Gain Variation
3
4
Input Return Loss
S11
2.5 – 3.5 GHz
17
16
dB
Output Return Loss
S22
2.5 – 3.5 GHz
22
20
dB
5
Reverse Isolation
S12
2.5 – 3.5 GHz
18
16
6
Noise figure
NF
2.5 – 3.5 GHz
0.90
7
Output Power 1dB
compression Point
P1dB
2.5 – 3.5 GHz
14
13
dBm
8
Output-Third-Order
Interception point
IP3
Two-Tone, Pout +0 dBm
each, 1 MHz separation
31
29
dBm
10
Current Consumption
Idd
Vdd= +5 V
11
Power Supply Voltage
Vdd
12
Thermal Resistance
Rth,c
13
Operating Temperature
To
14
Maximum Average RF Input
Power
PIN, MAX
1
2
+/- 0.25
Unit
15
dB
+/- 0.5
dB
dB
1.2
dB
30
25
35
mA
+5
+4.7
+5.3
V
215
o
C/W
+85
o
C
10
dBm
Junction to case
-40
2.5 – 3.5 GHz
Max
Specifications are subject to change without notice.
MTBF: Mean Time Between Failure, Per TR-NWT-000332, ISSUE 3, SEPTEMBER, 1990, T=40 oC
1
REV B
www.wantcominc.com
b) Passband Frequency Response
As shown in Figure 1, the typical gain of the WHM2535-12AE is 14.0 dB across 2.5 to 3.5 GHz. The typical
input and output return losses are 17 dB and 22 dB across the frequency of 2.5 to 3.5 GHz, respectively.
Figure 2 shows the measured P1dB and IP3 of the WHM2535-12AE. The typical P1dB and IP3 are 14 dBm and
31 dBm in the frequency range of 2.5 to 3.5 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 1.0 dB (including 0.10 dB test fixture loss) across the
frequency range of 2.5 to 3.5 GHz at room temperature. At 85 0C, WHM2535-12AE only has 0.30 dB noise increases.
At –40 0C, WHM2535-12AE offers approximately 0.25 dB less noise figure than that at room temperature.
Figure 4 demonstrates the stability factor k of the amplifier.
Figure 5 is the block diagram of internal circuit of WHM2535-12AE. It is a one-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 integrated in.
Figure 6 demonstrates the application schematic diagram of WHM2535-12AE. It requires the external
decoupling capacitors C1 of 0.01 uF to build a LNA with WHM2535-12AE. C1 is to be as close to Pin 2 as possible.
This capacitor eliminates the parasitic. The +5V DC is applied at Pin 2. 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 de-coupling 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 WHM2535-12AE. 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.
WHM2535-12AE Perform ance @ 25 C
25
S11
20
S21
S22
30
15
25
dBm
10
S11, S21, S22 (dB)
WHM2535-12AE IP3 and P1dB
35
5
IP3 (dBm )
20
P1dB (dBm )
0
-5
15
-10
10
-15
5
-20
-25
0.50
Freq (GHz)
1.00
1.50
2.00
2.50
3.00
3.50
FIG. 1 Typical small signal performance.
4.00
4.50
5.00
Freq (GHz)
0
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
FIG. 2 Typical P1dB and IP3 at room temperature.
2
REV B
www.wantcominc.com
WHM2535-12AE Noise Figure
2.0
1.9
25C
1.8
-40C
1.7
85C
5
4
1.6
4
1.5
3
1.4
1.3
k
NF (dB)
WHM2535-12AE Stability Coefficient k
5
1.2
3
2
1.1
1.0
2
0.9
1
0.8
0.7
1
0.6
0.5
2.00
Freq (GHz)
2.25
2.50
2.75
3.00
3.25
FIG. 3 Noise figure performance at full temperature
FIG. 5 Block diagram of internal circuit.
Freq (GHz)
0
3.50
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 WHM2535-12AE
3
REV B
www.wantcominc.com
WHM2535-12AE Mechanical Outline, WHM-1S:
FIG. 7 WHM2535-12AE outline
Ordering Information
Model Number
WHM2535-12AE
Waffle pack with the capacity of 100 pieces (10 x 10) 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:
!WHM2535-12AE
!s-parameters at Vds=5V, Id=30 mA, including the test board.
!Last updated 3/07/04.
# 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
0.999
0.998
0.998
0.991
0.989
0.963
0.853
0.578
0.399
0.406
0.403
0.378
0.337
0.296
0.264
0.234
0.213
0.202
0.190
0.182
0.176
0.172
0.166
0.158
0.149
0.146
0.134
0.127
0.122
0.116
0.111
0.115
0.120
0.127
0.140
0.146
0.169
0.187
0.219
0.252
0.295
0.338
0.388
0.436
0.478
0.515
0.594
0.568
0.515
-9.5
-15.8
-31.6
-48.4
-66.7
-87.4
-113.1
-135.8
-132.5
-132.8
-143.1
-155.6
-167.1
-177.1
175.0
168.5
162.4
155.6
148.8
141.2
132.5
122.9
113.0
102.5
89.0
76.3
63.2
48.5
32.4
16.2
-1.5
-18.1
-33.9
-51.9
-65.6
-79.5
-91.9
-105.5
-115.2
-126.4
-140.2
-152.2
-166.3
-179.6
166.7
152.6
88.9
36.9
-8.5
0.001
0.002
0.018
0.093
0.324
0.946
2.338
4.162
5.381
5.788
5.960
6.079
6.163
6.163
6.136
6.075
5.975
5.858
5.748
5.647
5.550
5.465
5.384
5.315
5.263
5.212
5.154
5.111
5.070
5.044
5.029
4.996
4.960
4.951
4.925
4.890
4.841
4.779
4.690
4.580
4.411
4.195
3.894
3.552
3.153
2.754
1.107
0.363
0.106
-50.6
-168.9
135.0
112.2
89.9
61.2
20.1
-29.1
-74.7
-110.2
-138.3
-162.1
176.6
157.0
138.8
122.2
106.7
92.0
78.1
64.9
52.0
39.6
27.5
15.7
4.0
-7.4
-18.8
-30.0
-41.5
-53.0
-64.5
-76.1
-87.9
-99.8
-111.7
-124.1
-136.8
-150.1
-163.9
-178.3
166.8
151.5
135.8
120.1
104.2
88.5
21.6
-27.7
-58.9
0.0000
0.0000
0.0002
0.0008
0.0026
0.0081
0.0220
0.0420
0.0540
0.0590
0.0630
0.0670
0.0700
0.0740
0.0770
0.0790
0.0820
0.0850
0.0870
0.0900
0.0920
0.0950
0.0980
0.1010
0.1050
0.1080
0.1100
0.1130
0.1170
0.1200
0.1230
0.1260
0.1290
0.1320
0.1340
0.1370
0.1400
0.1430
0.1450
0.1460
0.1470
0.1480
0.1450
0.1390
0.1320
0.1230
0.0760
0.0450
0.0350
20.4
109.7
14.4
-17.6
-36.1
-60.5
-96.0
-142.5
174.9
144.8
122.8
105.1
89.3
75.2
63.0
51.5
40.6
30.8
21.9
13.1
4.6
-3.4
-11.2
-19.2
-26.7
-34.2
-42.1
-50.1
-57.7
-65.3
-73.2
-81.1
-89.0
-96.8
-105.0
-113.5
-122.0
-130.7
-139.9
-149.8
-160.4
-171.4
178.0
166.8
154.8
143.6
98.1
62.6
29.0
0.999
0.998
0.996
0.989
0.974
0.923
0.768
0.475
0.417
0.483
0.478
0.432
0.364
0.293
0.221
0.158
0.102
0.060
0.024
0.011
0.031
0.048
0.059
0.068
0.072
0.076
0.080
0.079
0.080
0.078
0.079
0.077
0.071
0.068
0.056
0.046
0.046
0.066
0.105
0.160
0.226
0.307
0.391
0.476
0.556
0.626
0.816
0.866
0.904
-9.0
-15.2
-31.0
-47.4
-65.7
-86.9
-112.4
-126.8
-115.3
-125.7
-144.6
-164.2
176.3
157.0
138.8
120.2
102.0
79.9
49.3
-64.4
-120.6
-142.9
-163.7
177.6
158.3
139.9
119.1
97.9
78.8
54.4
32.6
11.1
-12.8
-38.1
-67.1
-105.9
-158.8
150.7
110.7
81.5
57.1
32.3
10.0
-12.7
-33.8
-54.7
-143.6
149.5
95.4
5