CA3028A, CA3028B, CA3053
Test Circuits (Continued)
5kΩ
VCC
C1
1
L1
3
7
8
ICUT
1kΩ
6
5
50Ω SIGNAL
SOURCE
(NOTE 17) OR
NOISE DIODE
(NOTE 18)
0.001µF
2kΩ
L2
C2
50Ω RF
VOLTMETER
(NOTE 17) OR
NOISE AMP
(NOTE 18)
f
C1
C2
(MHz) (pF) (pF)
L1
(µH)
10.7 30 - 60 20 - 50 3 - 6
100 2 - 15 2 - 15 0.2 - 0.5
L2
(µH)
3-6
0.2 - 0.5
NOTES:
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
VCC
1kΩ
5
0.01
µF
2kΩ 50Ω
1
3
INPUT 0.01µF
VCC
7
ICUT
8
0.01
6 µF
50Ω
OUTPUT
0.01µF
FIGURE 8. OUTPUT POWER TEST CIRCUIT FOR CA3028A
AND CA3028B
5kΩ
VCC
VCC
C1
50Ω
SIGNAL
SOURCE
1
L1
3
7
8
ICUT
1kΩ
6
5
L2
C2
50Ω RF
VOLTMETER
0.001µF
2kΩ
f
C1
C2
(MHz) (pF) (pF)
L1
(µH)
10.7 30 - 60 20 - 50 3 - 6
100 2 - 15 2 - 15 0.2 - 0.5
L2
(µH)
3-6
0.2 - 0.5
INPUT
50Ω
1
2
0.01µF
3
8
7
6
1kΩ LOAD
ICUT
5
4 0.01µF
0.01µF
1kΩ
2kΩ
10Ω
OUTPUT
0.01µF
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