5

MRF917T1

MOTOROLA RF DEVICE DATA

– j0.2

– j0.5

– j1.0

– j2.0

0.2

0.5

1.0

2.0

j1.0

j2.0

j0.5

j0.2

j1.0

j2.0

j0.5

j0.2

– j0.2

– j0.5

– j1.0

– j2.0

0.2

0.5

1.0

2.0

Γopt

10.0

10.8

2.4

1.7

2.2

1.8

2.5

14.0

12.0

1.6

Γopt

10.0

16.0

16.4

2.3

2.6

3.0

4.0

9.0

8.0

7.0

Figure 11. Constant Gain and Noise Figure Contours

— Potentially Unstable

f (MHz)

NF OPT (dB)

RN

K

500

1.60

19

0.67

ΓMS NF OPT

0.39

é 52°

VCE = 3.0 V

IC = 3.0 mA

Figure 12. Constant Gain and Noise Figure Contours

f (MHz)

NF OPT (dB)

RN

K

1000

2.30

15

1.09

ΓMS NF OPT

0.29

é 110°

VCE = 3.0 V

IC = 3.0 mA