Cisco Cisco 1 GHz GainMaker Amplifier 데이터 시트
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Table 2.
3Forward Station Performance
Forward Station Performance
Units
Auto/Thermal with 12 dB I/S EQ Notes
Operational gain (minimum)
dB
46
2
Internal tilt (± 0.5 dB)
dB
19.0
3
Noise figure at 54 MHz
dB
8.5
2
Noise figure at 1 218MHz
dB
8.0
2
Composite triple beat
dBc
68
4,9
Cross modulation
dBc
64
4,5,9
Composite second order (high side)
dBc
68
4,9
Composite intermodulation noise (CIN)
dBc
50
4,8,9
Table 3.
Reverse Station Performance
Reverse Station Performance
Units
Notes
Operational gain (minimum)
dB
21.6
6,7
Internal tilt (± 0.5 dB)
dB
0
3
Noise figure
dB
13.5
6,7
NPR at 50dB CNR at 42/54 MHz
dB
20
Table 4.
Station Delay Characteristics
Station Delay Characteristics
Forward
(Chrominance to Luminance Delay)
(Chrominance to Luminance Delay)
Reverse
(Group Delay in 1.5 MHz bandwidth)
(Group Delay in 1.5 MHz bandwidth)
Frequency (MHz)
Delay (ns)
Frequency (MHz)
Delay (ns)
55.25 to 58.83
39
5.0 to 6.5
60
61.25 to 64.83
25
6.5 to 8.0
22
67.25 to 70.83
17
8.0 to 9.5
12
77.25 to 80.83
10
37.5 to 39.0
20
39.0 to 40.5
32
40.5 to 42.0
50
Table 5.
Station Powering Data
Station Powering Data
Cisco GainMaker
HGD System Amplifier
I DC
(Amps)
AC Voltage
90
85
80
75
70
65
60
55
50
45
40
35
Thermal
1.85
AC
current
(A)
current
(A)
0.66
0.68
0.72
0.73
0.76
0.81
0.87
0.94
1.04
1.18
1.35
1.61
Power
(W)
(W)
49.0
48.7
48.2
48.1
47.8
47.6
47.6
47.5
47.5
47.6
47.5
47.9
AGC
1.90
AC
current
(A)
current
(A)
0.67
0.69
0.73
0.74
0.77
0.82
0.89
0.97
1.07
1.21
1.38
1.64
Power
(W)
(W)
50.1
49.7
49.3
49.2
48.9
48.6
48.6
48.6
48.6
48.6
48.8
49.0
Unless otherwise noted, specifications reflect typical performance and are referenced to 68°F (20°C). Specifications are based
upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.
upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.