4 RU SSPA Chassis Operations Manual
201627 REV X
75
6.1 ZBUC Converter Features
This section describes the features available in the new Teledyne Paradise Datacom
ZBUC
TM
converter. The ZBUC converter is available as an option for the SSPA. The
ZBUC converter is available in four C-Band models, two Ku-Band models and one
X-Band model.
Table 6-1
shows the specifications for the respective models.
6.2 ZBUC Converter Theory of Operation
The ZBUC converter is a low gain block up converter with a P
1dB
of 0 dBm. This topol-
ogy allows the system to be integrated with little impact on the general electrical
specifications of the SSPA module.
The ZBUC converter utilizes single up conversion from L-Band to the desired RF band.
The local oscillator circuits are designed to maintain the lowest possible output phase
noise. The frequency synthesizer utilizes industry leading technology which allows for
phase noise performance previously unattainable in PLL design. The typical phase
noise specification is outlined in
Table 6-2
.
Band selectivity is accomplished using the most aggressive filtering possible while
maintaining specified power and spurious performance.
Table 6-1: ZBUC Converter Frequency Specifications
Band
Frequency Plan*
IF Input
LO Frequency
RF Output
C
Standard C-Band
950 - 1525 MHz
4.900 GHz
5.850 - 6.425 GHz
C
Extended C-Band
950 - 1825 MHz
4.900 GHz
5.850 - 6.725 GHz
C
Palapa Band
950 - 1250 MHz
5.475 GHz
6.425 - 6.725 GHz
C
Insat Band
950 - 1250 MHz
5.775 GHz
6.725 - 7.025 GHz
X
Standard X-Band
950 - 1450 MHz
6.950 GHz
7.900 - 8.400 GHz
Ku
Standard Ku-Band
950 - 1450 MHz
13.050 GHz
14.00 - 14.50 GHz
Ku
Extended Ku-Band
950 - 1700 MHz
12.800 GHz
13.75 - 14.50 GHz
* Custom frequency plans available upon request.
Table 6-2: ZBUC Converter RF Output Phase Noise Specification
Offset
Guaranteed
Max.
C-Band
Typical
X-Band
Typical
Units
10 Hz
-30
-60
-60
-50
dBc/Hz
100 Hz
-60
-80
-75
-65
dBc/Hz
1 KHz
-70
-80
-75
-72
dBc/Hz
10 KHz
-80
-85
-100
-90
dBc/Hz
100 KHz
-90
-120
-110
-110
dBc/Hz
1 MHz
-90
-125
-122
-120
dBc/Hz
Ku-Band
Typical
Содержание 4 RU Chassis
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