Cisco Cisco 1 GHz GainMaker Amplifier Hoja De Datos
© 2014 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Page 4 of 7
Table 3.
Reverse Station Performance
Reverse Station Performance
Units
Notes
Operational gain (minimum)
dB
19.5
6,7
Internal tilt (± 0.5 dB)
dB
-0.5
3
Noise figure
dB
12
6,7
6 NTSC Channels (CW)
Composite triple beat
dB
92
9
Cross modulation
dB
80
5,9
Composite second order (high side)
dB
82
9
Table 4.
Station Delay Characteristics
Station Delay Characteristics
Forward (Chrominance to Luminance Delay)
Reverse (Group Delay in 1.5 MHz bandwidth)
Frequency (MHz)
Delay (ns)
Frequency (MHz)
Delay (ns)
109.25 to112.83
13
5.0 to 6.5
60
115.25 to 118.83
7
6.5 to 8.0
22
121.25 to 124.83
5
8.0 to 9.5
12
80.5t o 82.0
10
82.0 to 83.5
13
83.5 to 85.0
18
Table 5.
Station Powering Data
Station Powering Data
Cisco GainMaker I DC
AC Voltage
HGBT
(Amps)
90
85
80
75
70
65
60
55
50
45
40
35
Thermal
1.94
AC current (A)
0.78
0.79
0.78
0.80
0.84
0.88
0.99
1.05
1.16
1.29
1.48
1.74
Power (W)
52.5
52.4
52.3
52.2
52.0
52.0
51.9
51.9
52.0
52.1
52.3
52.7
AGC
1.98
AC current (A)
0.79
0.80
0.79
0.81
0.85
0.90
1.01
1.08
1.19
1.32
1.51
1.77
Power (W)
53.6
53.4
53.4
53.2
53.1
53.0
53.0
53.0
53.0
53.1
53.4
53.8
AGC with status
monitor and
reverse switch
monitor and
reverse switch
2.12
AC current (A)
0.82
0.85
0.84
0.87
0.89
0.96
1.09
1.16
1.26
1.42
1.62
1.92
Power (W)
57.3
57.1
57.1
56.9
56.8
56.7
56.7
56.7
56.8
56.9
57.2
57.7
Data is based on stations configured for two-way operation. AC currents specified are based on measurements
made with typical CATV type ferroresonant AC power supply (quasi-square wave), and Cisco GainMaker System
Amplifier power supply (2.5A, 24 VDC, pn 734771).
DC supply has a user configurable 30V, 40V, or 50 VAC under-voltage lockout circuit. Default setting is 30V. 40V,
or 50 VAC. Under-voltage lockout may be selected by changing the position of the lockout jumper.
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.