START540TR STMicroelectronics, START540TR Datasheet - Page 8

• Manufacturer Part Number: START540TR
• Description: RF Bipolar Small Signal NPN High Frequency
• Manufacturer: STMicroelectronics

Specifications of START540TR

• Dc Collector/base Gain Hfe Min: 100
• Mounting Style: SMD/SMT
• Configuration: Single
• Transistor Polarity: NPN
• Collector- Emitter Voltage Vceo Max: 4.5 V
• Emitter- Base Voltage Vebo: 1.5 V
• Continuous Collector Current: 0.04 A
• Power Dissipation: 180 mW
• Maximum Operating Temperature: + 150 C
• Package / Case: SOT-323-4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 11: Stability Factor M ,k, The Magnitude Of The S-matrix
Figure 12 is a partial representation of the LNA output spectrum. f
equal amplitude input test tones. For this LNA we use -28dBm input power in order to reach -13dBm of
output power for each test tones. Other signals besides f
device behavior.
Figure 12: In-band Third Order Intermodulation Product Distorsion
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AN1465 - APPLICATION NOTE
4.5
3.5
2.5
1.5
0.5
5
4
3
2
1
0
0
-87
-87
-13
-13
f
f
2-
2-
f
f
1000
1
1
2f
2f
1-
1-
2000
f
f
2
2
3
3
3000
f (Mhz)
f
f
1
1
1
and f
f
f
4000
f
f
2
2
2
are generated as a result of non-linear
1
=1900MHz and f
2f
2f
5000
2-
2-
f
f
1
1
frequency
frequency
6000
2
=1900,4MHz are