MC1490 데이터 시트보기 (PDF) - Motorola => Freescale
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MC1490 Datasheet PDF : 8 Pages
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MC1490
Figure 19. 60 MHz Power Gain Test Circuit
Figure 20. Video Amplifier
0.0001
C3
µF
Shield
7
C4
C2
6
VAGC
8
L1
MC1490P
L2
5
Input
1
(50 Ω) C1
4
RAGC
32
VR(AGC)
0.001 µF
L1 = 7 turns, #20 AWG wire, 5/16″ Dia.,5/8″ long
L2 = 6 turns, #14 AWG wire, 9/16″ Dia.,3/4″ long
C1,C2,C3 = (1–30) pF
C4 = (1–10) pF
Output
(50 Ω)
+12 Vdc
1.0 µF
0.001
µF
7
VR(AGC)
VR(AGC)
ei
10 k
5.6 k
1.0 µF
6
8
MC1490P
5
1
2
43
1.0 µF
0.001 µF
0.001 µF
eo
RL
+12 Vdc
[ Figure 21. 30 MHz Amplifier
(Power Gain = 50 dB, BW 1.0 MHz)
(1 – 30) pF
Input
(50 Ω) 38 pF
0.002 µF 7
6
T1
8
5
L1
MC1490P
C2
VAGC
1
43
5.6 k 0.002 µF
2 1 – 10 pF
10 µH
VR(AGC)
+12 Vdc
RL = 50 Ω
L1 = 12 turns, #22 AWG wire on a Toroid core,
(T37–6 micro metal or equiv).
T1: Primary = 17 turns, #20 AWG wire on a Toroid core, (T44–6).
Secondary = 2 turns, #20 AWG wire.
Figure 22. 100 MHz Mixer
VAGC 6.0 V
Input from
local oscillator
(70 MHz)
Signal Input
100
(1 – 10) pF
7
5
8
6
MC1490P L2
(100 MHz)
L1 4
(1 – 30) pF
3
21
0.002 µF
0.002 µF
(1 – 10) pF
(1 – 30) pF
IF Output
(30 MHz)
+12 Vdc
10 µH
L1 = 5 turns, #16 AWG wire, 1/4″, ID Dia., 5/8″ long
L2 = 16 turns, #20 AWG wire on a Toroid core, (T44–6).
[ [ Figure 23. Two–Stage 60 MHz IF Amplifier (Power Gain 80 dB, BW 1.5 MHz)
10 k
VR(AGC)
Input
(50 Ω)
24 pF
5.1 k
200 µH
(1–10) pF
0.002 µF
7
Shield
4
8
5 MC1490P
6
1 (1–10) pF
2
3
RFC
10 µH
+12 Vdc
(1–10) pF
T1 0.002 µF
1.0 k
39 pF
7
Shield
4
T2
8
5
6
0.002 µF
MC1490P
1 (1–10) pF
2
3
RFC
0.001 µF
Output
(50 Ω)
T1: Primary Winding = 15 turns, #22 AWG wire, 1/4″ ID Air Core
[ Secondary Winding = 4 turns, #22 AWG wire,
Coefficient of Coupling 1.0
6
T2: Primary Winding = 10 turns, #22 AWG wire, 1/4″ ID Air Core
[ Secondary Winding = 2 turns, #22 AWG wire,
Coefficient of Coupling 1.0
MOTOROLA ANALOG IC DEVICE DATA
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