Cisco Cisco 1 GHz GainMaker Amplifier Hoja De Datos
© 2014 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
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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)
109.25 to 112.83
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
80.5 to 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
High Gain Dual
I DC
(Amps)
AC Voltage
90
85
80
75
70
65
60
55
50
45
40
35
Thermal
1.51
AC current (A)
0.69
0.69
0.66
0.67
0.66
0.68
0.77
0.83
0.89
0.99
1.11
1.31
Power (W)
41.2
41.1
41.0
40.8
40.7
40.7
40.6
40.6
40.6
40.5
40.6
40.8
AGC
1.56
AC current (A)
0.70
0.70
0.68
0.69
0.68
0.70
0.79
0.85
0.92
1.02
1.16
1.35
Power (W)
42.5
42.4
42.3
42.2
42.0
42.0
41.9
41.9
41.9
41.9
42.0
42.2
AGC with status
monitor and
reverse switch
monitor and
reverse switch
1.70
AC current (A)
0.73
0.73
0.72
0.73
0.73
0.77
0.86
0.92
1.01
1.12
1.27
1.46
Power (W)
46.2
46.1
46.0
45.9
45.8
45.7
45.6
45.6
45.6
45.6
45.8
46.0
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).
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.
Under-voltage lockout may be selected by changing the position of the lockout jumper.
Notes:
1.
Reference output tilt is specified as “LINEAR” tilt (as opposed to “cable” tilt).
2. Forward gain and noise figure measured with 0 dB input EQ and 1 dB input pad.
3. Down tilt, the effect of cable, is represented by a (-). Up tilt, the effect of equalization, is represented by a (+).
4. 73 CW NTSC channels loaded from 115 to 550 MHz. Digital refers to 550-1002 MHz loading with QAM carriers at -6 dB
levels relative to analog video carrier levels.
5. X-mod (@ 15.75 kHz) specified using 100 percent synchronous modulation and frequency selective measurement device.
6. Reverse gain and noise figure for station with 0 dB reverse input pad, 0 dB reverse output EQ, and 1 dB output pad.
7. Reverse operational gain, noise figure, and return loss are specified without reverse switch option. If switch is installed,
reduce gain by 0.5 dB, increase noise figure by 0.5 dB, and decrease Return loss by 1 dB.
8. Composite Intermodulation noise is a broadband noise-like distortion product associated with QAM loading.
9. Distortion performance at reference output levels and tilt. Contact Cisco Systems Engineering for CIN calculation.
10. The gain at 102 MHz is < 1.5 dB below the gain at 105 MHz. 102 to 105 MHz is recommended for out of band
communication only. No video carriers should be used between 102 and 105 MHz.
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.