START540TR STMicroelectronics, START540TR Datasheet
START540TR
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A LNA OPTIMIZED FOR HIGH IP3out AT 1.9GHz USING THE NPN Si START540 TRANSISTOR Data at 1.9GHz (3V, 5mA) Gain = 15dB, IP3 = 24dBm 1.25dB, RL out 1. INTRODUCTION. START540 is a product of the START Family ...
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AN1465 - APPLICATION NOTE A single pin (V =3V) for voltage supply is used. A 1µF bypass capacitor to filter the supply at the common cc V node is also used. The transistor's base is connected to the power supply ...
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Figure 4: DEMOBOARD Layout View Of Components Position Mid Layer AN1465 - APPLICATION NOTE Top Layer Bottom Layer 3/10 ...
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AN1465 - APPLICATION NOTE Table 1: Bill of Materials µ ...
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The measured gain and noise figure is shown in figures 5 and 6. Optimum amplifier noise figure is 1.25 dB and occurs at 1900 MHz. This value included the losses of the input SMA connector and microstrip lines of the ...
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AN1465 - APPLICATION NOTE Figure 7: Input Return Loss vs. Frequency -10 -12 -14 -16 -18 -20 1700 Figure 8: Output Return Loss vs. Frequency -20 -25 -30 -35 -40 -45 -50 1700 Figure 9: ...
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Figure 10: Power Gain vs. Power Output (at 1.9GHz -10 -9 The stability analysis of the amplifier is show in figure 11 A linear two port device is unconditionally stable if the real ...
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AN1465 - APPLICATION NOTE Figure 11: Stability Factor M ,k, The Magnitude Of The S-matrix 5 4.5 4 3.5 3 2.5 2 1 1000 Figure partial representation of the LNA output spectrum. f ...
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The generated low frequency product (f2-f1) modulates the base-emitter and colle ctor-emitter voltages of the transistor. This modulation causes a base and collector voltages fluctuation that lowers the linearity of the amplifier. The base voltage, in fact, determines the quiescent ...
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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...