MRF2947 Datasheet, PDF (3/12 Pages) Motorola, Inc – LOW NOISE TRANSISTORS

TYPICAL CHARACTERISTICS
1.4
1.2
f = 1 MHz
1.0
0.8
0.6
Cob
0.4
Ccb
0.2
0
0
2
4
6
8
10
VCB, REVERSE VOLTAGE (V)
Figure 1. Capacitance versus Voltage
1.6
1.4
f = 1 MHz
1.2
1.0
0.8
CIb
0.6
0.4
0.2
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VEB, EMITTER–BASE VOLTAGE (V)
Figure 2. Input Capacitance versus Voltage
180
160
140
120
100
80
60
40
20
0.1
VCE = 1 V
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 3. DC Current Gain versus
Collector Current
10
9 ^{VCE = 6 V}
f = 1 GHz
8
7
6
5
4
3
2
1
0.1
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 4. Gain–Bandwidth Product versus
Collector Current
RF
INPUT
Pin
VCE
VBE
BIAS NETWORK
DUT
*SLUG TUNER
*SLUG TUNER
Figure 5. Functional Circuit Schematic
BIAS NETWORK
*MICROLAB/FXR
SF–11N < 1 GHz
SF–31N > 1 GHz
RF
OUTPUT
Pout
MOTOROLA RF DEVICE DATA
MRF2947AT1,T2 MRF2947RAT1,T2
3