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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 C 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
1 2 3 4 5 6 7 8 10 11 12 13 14
Testing Item
Gain Gain Variation Input Return Loss Output Return Loss Reverse Isolation Noise figure Output Power 1dB compression Point Output-Third-Order Interception point Current Consumption Power Supply Voltage Thermal Resistance Operating Temperature Maximum Average RF Input Power
Symbol
S21 G S11 S22 S12 NF P1dB IP3 Idd Vdd Rth,c To PIN, MAX
Test Constraints
2.5 - 3.5 GHz 2.5 - 3.5 GHz 2.5 - 3.5 GHz 2.5 - 3.5 GHz 2.5 - 3.5 GHz 2.5 - 3.5 GHz 2.5 - 3.5 GHz Two-Tone, Pout +0 dBm each, 1 MHz separation Vdd= +5 V Junction to case
Nom (RT)
14 +/- 0.25 17 22 18 0.90 14 31 30 +5
Min
13.0 16 20 16
Max
15 +/- 0.5
Unit
dB dB dB dB dB
1.2 13 29 25 +4.7 -40 35 +5.3 215 +85 10
dB dBm dBm mA V
o o
C/W C
2.5 - 3.5 GHz
dBm
1 2
Specifications are subject to change without notice. MTBF: Mean Time Between Failure, Per TR-NWT-000332, ISSUE 3, SEPTEMBER, 1990, T=40 oC
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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 20 15 10 S11, S21, S22 (dB) 5 0 -5 -10 -15 -20 -25 0.50
35
S11 S21 S22
WHM2535-12AE IP3 and P1dB
30 25 dBm IP3 (dBm ) 20 15 10 5
Freq (GHz) 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00
P1dB (dBm )
Freq (GHz) 0 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8
FIG. 1 Typical small signal performance.
FIG. 2 Typical P1dB and IP3 at room temperature.
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2.0 1.9 1.8 1.7 1.6 1.5 1.4 NF (dB) 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 2.00 2.25 2.50 2.75 3.00 Freq (GHz) 3.25 3.50 1.3 25C -40C 85C WHM2535-12AE Noise Figure
5 5 4 4 3 3 2 2 1 1 0 0.0 0.5 1.0 k
WHM2535-12AE Stability Coefficient k
Freq (GHz) 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
FIG. 3 Noise figure performance at full temperature
FIG. 4 Measured stability factor k
FIG. 5 Block diagram of internal circuit.
FIG. 6 Typical application schematic for WHM2535-12AE
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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.
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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) 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 MAG S11 ANG S11 MAG S21 ANG S21 MAG S12 ANG S12 MAG S22 ANG S22 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
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