MMBR947BT1 查看數據表（PDF） - Motorola => Freescale

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产品描述 (功能)

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MMBR947BT1

NPN Silicon Low Noise, High-Frequency Transistor

Motorola => Freescale 

+ j0.5

+ j0.2

– j0.2

– j0.5

+ j1

+ j2

11.2

11

10

1.6

1.8

2

VCE = 1.0 V

IC = 0.5 mA

— AREA OF INSTABILITY

f (GHz) NF OPT (dB) ΓMS NF OPT RN

K

0.5

1.60

0.70 ∠ 35°

40

0.22

– j2

– j1

Figure 19. MRF9411LT1 Constant Gain and Noise Figure Contours

(f = 0.5 GHz)

+ j1

+ j0.5

+ j2

2

+ j0.2

2.1

8.6

2.3

8

7

– j0.2

VCE = 1.0 V

IC = 0.5 mA

— AREA OF INSTABILITY

f (GHz) NF OPT (dB) ΓMS NF OPT RN

K

1.0

1.95

0.55 ∠ 69°

30

0.39

– j0.5

– j2

– j1

Figure 20. MRF9411LT1 Constant Gain and Noise Figure Contours

(f = 1.0 GHz)

MOTOROLA RF DEVICE DATA

MMBR941 MRF947 MRF9411 SERIES

2–13

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