MMBR951 Datasheet, PDF (5/13 Pages) Motorola, Inc – NPN Silicon Low Noise, High-Frequency Transistors

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