MRF949T1 datasheet(7/14 Pages) MOTOROLA

Part #	MRF949T1

Description	LOW NOISE TRANSISTORS

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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7

MRF949T1

MOTOROLA RF DEVICE DATA

5.0

6.0

4.0

3.0

5.0

2.0

17

18

1.41

4.0

2.0

3.0

13

3.0

14

15

16

5.0

4.0

9

6

3.0

4.0

5.0

10

11

8

2.0

9

0.2

0.5

1

2

Figure 19. MRF949T1 Series Constant Gain and

Noise Figure Contours

f = 1 GHz

0.2

0.5

1

2

Figure 20. MRF949T1 Series Constant Gain and

Noise Figure Contours

f = 2 GHz

f

(GHz)

NF

OPT

Γo

RN

K

1.0

1.57 dB 0.56

∠ 57.7° 24.2 0.48

j0.5

j0.2

–j0.5

–j1

–j2

j1

–j0.2

j0.5

j0.2

–j0.5

–j1

–j2

j2

j1

–j0.2

f

(GHz)

NF

OPT

Γo

RN

K

2.0

2.08 dB 0.50

∠ 119.8° 13

0.93

0.2

0.5

1

2

Figure 21. MRF949T1 Series Constant Gain and

Noise Figure Contours

f = 1 GHz

0.2

0.5

1

2

Figure 22. MRF949T1 Series Constant Gain and

Noise Figure Contours

f = 1 GHz

f

(GHz)

NF

OPT

Γo

RN

K

1.0

1.34 dB 0.45

∠ 47.3° 18.2 0.73

Potentially Unstable

OUTPUT

j0.5

j0.2

–j0.5

–j1

–j2

j2

j1

–j0.2

INPUT

j0.5

j0.2

–j0.5

–j1

–j2

j2

j1

–j0.2

f

(GHz)

NF

OPT

Γo

RN

K

1.0

1.41 dB

0.44

∠ 42.9° 19

0.86

INPUT

OUTPUT

Potentially Unstable

INPUT

OUTPUT

2.08

1.34

VCE = 1 V

IC = 1 mA

VCE = 1 V

IC = 1 mA

VCE = 3 V

IC = 3 mA

VCE = 6 V

IC = 5 mA

j2

16

1.57

OUTPUT

INPUT

Potentially Unstable

8

7

15

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