44
10 July 2000
Diamond Line Amplifiers
Specifications
Diamond Line 2 Amplifier With 12.5 dB Tilt
1
Notes
6-G3A298/37-42/54-***-125
Units
Bandwidth
Forward
Return
54–870
5–42
MHz
MHz
Forward Minimum Full Gain @ 870 MHz
(incl. losses from ALSC)
38 +0.5/-0
dB
Forward Operating Gain @ 870 MHz
(incl. losses from ALSC and 1 dB loss from input EQ)
37 +0.5/-0
dB
Return Operating Gain, minimum @ 40 MHz (incl. 1 dB loss from EQ)
17
dB
Response Flatness (forward and return)
Ports J2, J3 & J4
±0.75
dB
Return Loss (75 ohm, all ports)
5–42 MHz
54–870 MHz
16
16
dB
dB
Test Points (forward and return)
-20 ±0.5
dB
Forward Bandwidth
Referenced Output Level
at 870 / 750 / 650 / 550 / 54 MHz
48 / 46.5 / 45 / 43.5 / 35.5 dBmV
Channel Loading (analog, NTSC)
a,b
a. Distortion specifications are typical for individual module performance.
b. For performance using other channel spacing and loading schemes, refer to the Philips product catalog page RF-Amplifiers.
112 channels
96 channels
79 channels
Composite Triple Beat, typical
-65
-70
-74
dBc
Cross Modulation, typical
-66
-71
-74
dBc
Composite Second Order, typical
Vc + 0.75 & 1.25 MHz only
-65
-71
-74
dBc
Noise Figure, maximum (incl. 1 dB loss from EQ)
10
dB
Hum Modulation, typical
@ 12 amps
@ 15 amps
-70
-65
dBc
dBc
Return Bandwidth
Distortions at Referenced Output @ +25
°
C
a,b
6 ch + 39 dBmV flat out
Composite Triple Beat, typical
-71
dBc
Cross Modulation, typical
-66
dBc
Composite Second Order, typical
-81
dBc
1 dB Compression Point, typical
+69.5
dBmV
Noise Figure (worst case)
11
dB
Hum Modulation, typical
@ 12 amps (5–10 MHz / 11–42 MHz)
65 / 70
dBc
@ 15 amps (5–10 MHz / 11–42 MHz)
55 / 65
dBc
AC Bypass Current (continuous)
15
A
AC Power Consumption (worst case, @ 1.727 ADC)
48
W
Operating Ambient Temperature
-40 to 140
-40 to +60
°
F
°
C
Dimensions (length x width x height)
12.8 x 5.6 x 3.6
32.5 x 14.2 x 9.1
in.
cm
Weight
4.55 (2.0) lb (kg)
All specifications are subject to change without notice.
1. See the Appendix for the following specifications, which apply to all Diamond Line amplifiers:
“Power Supply Specifications” on page 151,
“Relative Chroma Delay Specifications, 42/54 Split (NTSC System M)” on page 152,
“Relative Group Delay Characteristics for Return Signals, 42/54 Split” on page 152, and
“Automatic Level & Slope Control (ALSC) Specifications” on page 154.
