CA3028A, CA3028B, CA3053
Typical Performance Curves (Continued)
o
CASCODE CONFIGURATION, T = 25 C
DIFFERENTIAL AMPLIFIER CONFIGURATION
o
A
I
= 4.5mA, V
= +9V
C(STAGE)
CC
T
= 25 C, V
= +9V, f = 100MHz
A
CC
7
6
5
4
3
2
1
0
20
POWER GAIN
15
10
b
11
NOISE FIGURE
g
11
5
0
9
8
7
6
5
4
3
2
1
10
FREQUENCY (MHz)
100
POSITIVE DC BIAS VOLTAGE (V)
FIGURE 26. 100MHz NOISE FIGURE AND POWER GAIN vs
FIGURE 27. INPUT ADMITTANCE (Y ) vs FREQUENCY
11
BASE-TO-EMITTER BIAS VOLTAGE (TERMINAL 7)
FOR CA3028A AND CA3028B
(CASCODE CONFIGURATION)
o
DIFFERENTIAL AMPLIFIER CONFIGURATION
o
CASCODE CONFIGURATION, T = 25 C
A
T
= 25 C, V
= +9V
I
= 4.5mA, V
= +9V
A
CC
C(STAGE)
CC
3
2
20
15
10
5
I
OF EACH TRANSISTOR = 2.2mA
C
g
b
12
0
b
11
12
-5
1
0
g
11
-10
-15
-20
1
10
100
1
10
FREQUENCY (MHz)
100
FREQUENCY (MHz)
FIGURE 28. INPUT ADMITTANCE (Y ) vs FREQUENCY
11
FIGURE 29. REVERSE TRANSADMITTANCE (Y ) vs
12
(DIFFERENTIAL AMPLIFIER CONFIGURATION)
FREQUENCY (CASCODE CONFIGURATION)
o
CASCODE CONFIGURATION, T = 25 C
A
C(STAGE)
DIFFERENTIAL AMPLIFIER CONFIGURATION
o
I
= 4.5mA, V
= +9V
CC
T
= 25 C, V
= +9V
CC
A
0.3
0.2
I
OF EACH TRANSISTOR = 2.2mA
100
80
C
g
g
21
12
60
0.1
40
20
0
-0.1
-0.2
-0.3
0
b
12
-20
-40
-60
-80
b
21
1
2
3
4
5 6 7 8910
100
10
20
30 40 50 60 80 100
FREQUENCY (MHz)
200
300
FREQUENCY (MHz)
FIGURE 30. REVERSE TRANSADMITTANCE (Y ) vs
12
FIGURE 31. FORWARD TRANSADMITTANCE (Y ) vs
21
FREQUENCY (DIFFERENTIAL AMPLIFIER
FREQUENCY (CASCODE CONFIGURATION)
CONFIGURATION)
7-15
HARRIS [ HARRIS CORPORATION ]
