CA3028A, CA3028B, CA3053
Test Circuits (Continued)
5kΩ
V
CC
1kΩ
7
L
2
8
C
1
1
3
6
C
2
ICUT
L
1
5
50Ω RF
VOLTMETER
(NOTE 17) OR
NOISE AMP
(NOTE 18)
50Ω SIGNAL
SOURCE
(NOTE 17) OR
NOISE DIODE
(NOTE 18)
V
CC
0.001µF
2kΩ
V
CC
1kΩ
7
5
f
C
C
(pF)
L
(µH)
L
2
(µH)
1
2
1
0.01
µF
8
6
(MHz) (pF)
10.7 30 - 60 20 - 50
100
2kΩ
50Ω
ICUT
0.01
µF
3 - 6
3 - 6
1
3
2 - 15 2 - 15 0.2 - 0.5 0.2 - 0.5
INPUT
0.01µF
50Ω
NOTES:
OUTPUT
0.01µF
17. For Power Gain Test.
18. For Noise Figure Test.
FIGURE 7. POWER GAIN AND NOISE FIGURE TEST CIRCUIT
(DIFFERENTIAL AMPLIFIER CONFIGURATION)
FOR CA3028A AND CA3028B
FIGURE 8. OUTPUT POWER TEST CIRCUIT FOR CA3028A
AND CA3028B
5kΩ
V
V
CC
CC
1kΩ
7
10Ω
L
2
8
C
1
C
2
1
3
6
50Ω
SIGNAL
SOURCE
1kΩ LOAD
50Ω RF
VOLTMETER
ICUT
L
1
8
5
7
OUTPUT
6
1
0.001µF
2kΩ
INPUT
2
3
5
ICUT
0.01µF
1kΩ
50Ω
f
C
C
(pF)
L
(µH)
L
2
(µH)
1
2
1
0.01µF
0.01µF
(MHz) (pF)
10.7 30 - 60 20 - 50
100
4
2kΩ
3 - 6
3 - 6
0.01µF
2 - 15 2 - 15 0.2 - 0.5 0.2 - 0.5
FIGURE 9. AGC RANGE TEST CIRCUIT (DIFFERENTIAL
AMPLIFIER) FOR CA3028A AND CA3028B
FIGURE 10. TRANSFER CHARACTERISTIC (VOLTAGE GAIN) TEST
CIRCUIT (10.7MHz) CASCODE CONFIGURATION FOR
CA3028A, CA3028B AND CA3053
7-11
HARRIS [ HARRIS CORPORATION ]
