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ATF-331M4-TR1 Datasheet(PDF) 5 Page - Agilent(Hewlett-Packard) |
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ATF-331M4-TR1 Datasheet(HTML) 5 Page - Agilent(Hewlett-Packard) |
5 / 17 page 4 ATF-331M4 Typical Performance Curves Notes: 1. Measurements made on fixed tuned production test board that was tuned for optimal gain match with reasonable noise figure at 4V 60 mA bias. This circuit represents a trade-off between an optimal noise match, maximum gain match and a realizable match based on production test board requirements. Circuit losses have been de-embedded from actual measurements. 2. Quiescent drain current, Idsq, is set with zero RF drive applied. As P1dB is approached, the drain current may increase or decrease depending on frequency and dc bias point. At lower values of Idsq the device is running closer to class B as power output approaches P1dB. This results in higher P1dB and higher PAE (power added efficiency) when compared to a device that is driven by a constant current source as is typically done with active biasing. Figure 8. P1dB vs. Bias[1,2] 2 GHz. Idsq (mA) 0 100 40 20 80 60 2V 3V 4V 25 20 15 10 5 0 Figure 10. NF & Gain vs. Bias[1] at 2 GHz. Id (mA) 0 100 40 20 80 60 2V 3V 4V 16 15 14 13 12 11 10 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Figure 6. OIP3, IIP3 & Bias[1] at 2 GHz. Ids (mA) 0 100 40 20 80 60 2V 3V 4V 40 30 20 10 0 Figure 7. OIP3, IIP3 & Bias[1] at 900 MHz. Ids (mA) 0 100 40 20 80 60 2V 3V 4V 40 30 20 10 0 Figure 9. P1dB vs. Bias[1] 900 MHz. Idsq (mA) 0 100 40 20 80 60 2V 3V 4V 25 20 15 10 5 0 Figure 11. NF & Gain vs. Bias[1] at 900 MHz. Id (mA) 0 120 40 20 80 100 60 2V 3V 4V 22 21 20 19 18 17 16 1.4 1.2 1.0 0.8 0.6 0.4 0.2 |
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