MC1490 Motorola, MC1490 Datasheet - Page 3

• Manufacturer Part Number: MC1490
• Description: WIDEBAND AMPLIFIER WITH AGC
• Manufacturer: Motorola

MOTOROLA ANALOG IC DEVICE DATA
5.0
45
40
35
30
25
20
15
10
10
20
30
40
50
60
70
80
Figure 5. Voltage Gain and Supply Current versus
80
70
60
50
40
30
20
10
0
0
Supply Voltage (Video Amplifier, See Figure 20)
–40 –20
0
0
Figure 9. Power Gain versus Supply Voltage
f = 1.0 MHz
R l = 1.0
2.0
2.0
Figure 7. Typical Gain Reduction
V CC , POWER SUPPLY VOLTAGE (V)
f = 60 MHz
0
4.0
(See Test Circuit, Figure 19)
4.0
V CC , SUPPLY VOLTAGE (V)
20
versus AGC Current
I AGC AGC CURRENT ( A)
G P
6.0
6.0
40
8.0
8.0
A V
60
10
80
I CC
10
100 < R AGC < 100 k
12
100
12
120
14
14
140 160
16
24
21
18
15
12
9.0
6.0
3.0
0
MC1490
16
Figure 8. Fixed Tuned Power Gain Reduction versus
–10
–20
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
50
40
30
20
10
10
10
20
30
40
50
60
70
80
0
0
0
5.0
15
0
Temperature (See Test Circuit, Figure 19)
Figure 10. Noise Figure versus Frequency
3.0
5.2
R AGC = 0
V CC = 12 Vdc
f = 60 MHz
R AGC = 5.6 k
20
Figure 6. Typical Gain Reduction
6.0
5.4
25
V R(AGC), AGC VOLTAGE (Vdc)
V R(AGC), AGC VOLTAGE (Vdc)
5.6
9.0
versus AGC Voltage
30 35 40
f, FREQUENCY (MHz)
R AGC = 5.6 k
5.8
12
6.0
15
V R(AGC)
50
+75 C
6.2
18
60 70 80 90 100
R AGC
6.4
for minimum NF
21
R S Optimized
5
+125 C
R AGC = 100 k
0 C
6.6
24
MC1490P
+25 C
–55 C
6.8
27
150
7.0
3
30