MMBR951ALT1 Datasheet, PDF (5/16 Pages) Motorola, Inc – NPN Silicon Low Noise, High-Frequency Transistors

TYPICAL FORWARD INSERTION GAIN AND
MAXIMUM UNILATERAL GAIN versus FREQUENCY
30
30
MMBR951LT1
25
25
VCE = 8 V
MRF9511LT1
IC = 30 mA
20
GUmax
VCE = 8 V
IC = 30 mA
20
GUmax
15
|S21|2
15
|S21|2
10
10
5
0
0.1
0.2 0.3 0.5 0.7 1
23 5
f, FREQUENCY (GHz)
Figure 5. MRF9511LT1
5
0
0.1
0.2 0.3 0.5 0.7 1
23 5
f, FREQUENCY (GHz)
Figure 6. MMBR951LT1
24
VCE = 6 V
20
MRF9511LT1
IC = 5 mA
MMBR951LT1
16
GNF
12
6
5
8 CIRCUIT — FIGURE 9
4
NF50 _Ω
3
4
2
NFmin
1
0
0.1
0.2 0.3 0.5 0.7 1
0
23
5
f, FREQUENCY, (GHz)
Figure 7. Typical Noise Figure and Associated
Gain versus Frequency
VBE
6
5
4 _{CIRCUIT — FIGURE 9}
3
MRF9511LT1
MMBR951LT1
VCE = 6 V
NFmin at 2 GHz
2
1
NFmin at 1 GHz
0
1
2 3 5 7 10
20 30 50
IC, COLLECTOR CURRENT (mA)
Figure 8. Typical Noise Figure versus
Collector Current
VCE = 6 Vdc
RF INPUT
*BIAS **SLUG TUNER
NETWORK
D.U.T.
**SLUG TUNER *BIAS
NETWORK
Figure 9. Functional Circuit Schematic (All Devices)
RF OUTPUT
*HP11590B
**MICROLAB/FXR
**SF – 11N < 1 GHz
**SF – 31IN ≥ 1 GHz
MOTOROLA RF DEVICE DATA
MMBR951 MRF957 MRF9511 SERIES
5