ATF-331M4 datasheet(5/14 Pages) AVAGO

Part #	ATF-331M4

Description	Low Noise Pseudomorphic HEMT in a Miniature Leadless Package

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Manufacturer	AVAGO [AVAGO TECHNOLOGIES LIMITED]

Direct Link	http://www.avagotech.com

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5

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.

ATF-331M4 Typical Performance Curves, continued

Figure 12. Fmin vs. Frequency at 4 V, 60 mA.

FREQUENCY (GHz)

010

4

28

6

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

Figure 14. Fmin & Ga vs. Frequency and Temp.

Vd = 4 V , Ids = 60 mA.

FREQUENCY (GHz)

08

4

26

85

°C

25

°C

-40

°C

25

20

15

10

5

2.0

1.5

1.0

0.5

0

Figure 15. P1dB, OIP3 vs. Frequency and

Temp at Vd = 4 V , Ids = 60 mA.

FREQUENCY (GHz)

08

45

7

2

13

6

85

°C

25

°C

-40

°C

35

30

25

20

15

10

5

0

Figure 16. OIP3, P1dB, NF and Gain vs.

Bias[1,2] at 3.9 GHz.

Idsq (mA)

0

100

40

20

80

60

P1dB

OIP3

Gain

NF

35

30

25

20

15

10

5

0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Figure 13. Associated Gain vs. Frequency

at 4 V , 60 mA.

FREQUENCY (GHz)

010

4

28

6

30

25

20

15

10

5

0

Figure 17. OIP3, P1dB, NF at 5.8 GHz.

Idsq (mA)

0

100

40

20

80

60

P1dB

OIP3

Gain

NF

35

30

25

20

15

10

5

0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

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ATF-331M4 Datasheet(PDF) 5 Page - AVAGO TECHNOLOGIES LIMITED

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