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WHM2535-12AE Datasheet Preview

WHM2535-12AE Datasheet

LOW NOISE AMPLIFIER

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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 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
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
2.5 – 3.5 GHz
Nom (RT)
14
+/- 0.25
17
22
18
0.90
14
31
30
+5
Min
13.0
16
20
16
13
29
25
+4.7
-40
Max
15
+/- 0.5
1.2
Unit
dB
dB
dB
dB
dB
dB
dBm
dBm
35
+5.3
215
+85
10
mA
V
oC/W
oC
dBm
1 Specifications are subject to change without notice.
2 MTBF: Mean Time Between Failure, Per TR-NWT-000332, ISSUE 3, SEPTEMBER, 1990, T=40 oC
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WHM2535-12AE Datasheet Preview

WHM2535-12AE Datasheet

LOW NOISE AMPLIFIER

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www.DataSheet4U.com
REV B
b) Passband Frequency Response
www.wantcominc.com
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 S11 S21 S22
15
35
30
WHM2535-12AE IP3 and P1dB
10 25
IP3 (dBm )
5
20 P1dB (dBm )
0
-5 15
-10 10
-15
5
-20
Freq (GHz)
Freq (GHz)
-25 0
0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00
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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Part Number WHM2535-12AE
Description LOW NOISE AMPLIFIER
Maker ETC
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