參數(shù)資料
型號(hào)： MC1490D
廠商： Motorola, Inc.
英文描述： OC-48,24,12 SONET SDH Multi-rate Transceiver 100-HTQFP -40 to 85
中文描述： 寬帶放大器帶AGC
文件頁(yè)數(shù)： 6/8頁(yè)
文件大?。?/td> 364K
代理商： MC1490D
MC1490
6
MOTOROLA ANALOG IC DEVICE DATA
6
Figure 19. 60 MHz Power Gain Test Circuit
Figure 20. Video Amplifier
Figure 21. 30 MHz Amplifier
(Power Gain = 50 dB, BW
1.0 MHz)
Figure 22. 100 MHz Mixer
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
0.0001
μ
F
Shield
Output
(50
)
+12 Vdc
0.001
μ
F
2
6
1
3
4
5
L2
L1
VAGC
C1
Input
(50
)
C4
C3
C2
VR(AGC)
8
RAGC
MC1490P
1
8
3
4
5
7
2
+12 Vdc
VR(AGC)
ei
5.6 k
1.0
μ
F
10 k
RL
eo
0.001
μ
F
VR(AGC)
1.0
μ
F
0.001
μ
F
0.001
μ
F
1.0
μ
F
MC1490P
7
8
1
2
4
6
5
+12 Vdc
10
μ
H
5.6 k
L1
T1
C2
RL = 50
1 – 10 pF
VR(AGC)
0.002
μ
F
(1 – 30) pF
Input
(50
)
VAGC
38 pF
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.
0.002
μ
F
3
MC1490P
+12 Vdc
(1 – 30) pF
(1 – 10) pF
100
L1
L2
IF Output
Signal Input
(100 MHz)
Input from
local oscillator
(70 MHz)
VAGC
6.0 V
(30 MHz)
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).
0.002
μ
F
0.002
μ
F
10
μ
H
(1 – 30) pF
(1 – 10) pF
7
MC1490P
5
6
4
3
7
8
2
1
Figure 23. Two–Stage 60 MHz IF Amplifier (Power Gain
80 dB, BW
1.5 MHz)
3
2
5
6
1
8
3
2
4
5
6
1
8
200
μ
H
(1–10) pF
Input
(50
)
VR(AGC)
10 k
5.1 k
0.002
μ
F
+12 Vdc
7
(1–10) pF
1.0 k
(1–10) pF
0.002
μ
F
T1
39 pF
0.002
μ
F
MC1490P
MC1490P
7
Shield
Shield
(1–10) pF
0.001
μ
F
Output
(50
)
RFC
T2
24 pF
RFC
10
μ
H
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
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
4
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