MRF947 Motorola, MRF947 Datasheet - Page 4

• Manufacturer Part Number: MRF947
• Description: High-Frequency Transistors
• Manufacturer: Motorola

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MMBR941 MRF947 MRF9411 SERIES
2–4
30
25
20
15
10
24
20
16
12
RF INPUT
5
0
8
4
0
0.1
0.1
Figure 7. Noise Figure and Associated Gain
CIRCUIT — FIGURE 9
0.2 0.3
0.2 0.3
MMBR941LT1, T3
MRF947
Figure 5. MMBR941LT1, T3
versus Frequency
0.5
0.5
f, FREQUENCY, (GHz)
f, FREQUENCY, (GHz)
0.7
0.7
NETWORK
NF 50
MRF9411LT1
V BE
BIAS
MAXIMUM UNILATERAL GAIN versus FREQUENCY
1
1
Figure 9. Functional Circuit Schematic (all devices)
|S 21 | 2
GU max
NF min
*SLUG TUNER
2
2
FORWARD INSERTION GAIN AND
3
3
I C = 15 mA
V CE = 6 V
V CE = 6 V
I C = 5 mA
5
5
7
7
10
10
6
5
4
3
2
1
0
DUT
30
25
20
15
10
5
0
6
5
4
3
2
1
0
0.1
1
*SLUG TUNER
Figure 8. Minimum Noise Figure versus
0.2 0.3
2
3
NF min @ 2 GHz
Figure 6. MRF9411LT1
I C , COLLECTOR CURRENT (mA)
Collector Current
NETWORK
0.5
5
f, FREQUENCY, (GHz)
BIAS
V CE
0.7
MOTOROLA RF DEVICE DATA
7
NF min @ 1 GHz
10
1
|S 21 | 2
GU max
*MICROLAB/FXR
**SF – 11N < 1 GHz
**SF – 31IN 1 GHz
20
2
30
3
V CE = 6 V
I C = 15 mA
V CE = 6 V
RF OUTPUT
50
5
70
7
100
10