Ku-Band Line Driver Amplifiers (LDA)
LD-13S and LRK1 Series
Line Driver Amplifiers (LDAs) are specially designed for use in satellite earth stations and general purpose telecommunications applications. Utilizing proven GaAs FET technology, these amplifiers have been designed for reliable operation in both fixed and transportable applications.
Features
LD-13S series Ku-Band Line Driver Amplifiers (LDAs) are specially designed for use in satellite earth stations and general purpose telecommunications applications. Utilizing proven GaAs FET technology, these amplifiers have been designed for reliable operation in both fixed and transportable applications.
- GaAs FET design
- Internal regulator
- Reverse polarity protection
- Input/output isolators
- High reliability
- SMA (F) connectors
Options
- 22, 32, or 42 dB minimum gain
- +20 or +25 dBm min. output power at P1 dB
- Transmit or receive frequency bands
Specifications
Parameter |
Notes |
Min. |
Nom./Typ.(+) |
Max. |
Units |
|---|---|---|---|---|---|
| Frequency |
Band "E" Band "R" Band "M" Band "V" |
10.95 10.70 14.00 13.75 |
12.75 12.75 14.50 14.50 |
GHz GHz GHz GHz |
|
| Gain |
“-13S22x” “-13S32x” “-13S42x” |
22 32 42 |
25 35 45 |
dB dB dB |
|
| Gain Flatness |
Full Band Per 40 MHz |
±0.75 ±0.25 |
dB dB |
||
| Noise Figure | 3.5 | 4.0 | dB | ||
| Power Output at 1 dB compression |
“-13Sxx2” (Standard) “-13Sxx3” (High Power) |
+15 +20 |
+17 +21 |
dBm dBm |
|
| Third Order Output Intercept Point |
“-13Sxx2” (Standard) “-13Sxx3” (High Power) |
+25 +30 |
+27 +31 |
dBm dBm |
|
| Group Delay per 40 MHz | Linear Parabolic Ripple |
0.03 0.003 1.0 |
ns/MHz ns/MHz2 ns p-p |
||
| VSWR |
Input Output |
1.35 1.35 |
1.50 1.50 |
dBm dBm |
|
| Maximum Input Power | Damage threshold | +10 | dBm | ||
| Connectors | Input/Output Power |
SMA Female RFI Filter Soldier Terminal |
|||
| Power Requirements |
Voltage Current (Standard) |
+11 |
+12 240 |
+16 330 |
Vdc mA |
| Temperature Range | Operating; case | 0 | +60 | °C |
Features
Redundant Line Driver Amplifier (LDA) systems minimize system downtime due to LDA failure by providing a spare LDA and an automatic means of switching to the spare upon failure of the primary LDA. A 1:1 system provides one spare LDA for one primary LDA. A 1:2 system provides one spare LDA for either of the two primary LDAs.
Used to overcome cable losses, the systems are designed for installation at satellite earth stations in standard 19-inch EIA equipment racks. The systems are designed to house LD-13S Series Ku-Band LDAs.
- Standard 19” rack panel, 3.5” high
- Dual redundant power supplies
- Worldwide AC input capability
- Amplifier bias current monitoring to detect faults
- Manual or automatic operation
- Manual override switch control on rear panel
- Serial I/O
- Offline I/O with isolators
- Cooling fan
- Gain matching of amplifiers to ±1 dB
Options
- Variable attenuators located either at the output of each LDA or at each system path output
Operating Modes
- Automatic Mode: In Automatic mode, if a failure is detected in an online amplifier, the standby amplifier is switched on line. Typical switchover time is 100 milliseconds. For 1:2 systems, in the case that both on-line amplifiers fail, priority is selectable to either Pol 1 or Pol 2. For either 1:1 or 1:2 systems, the unit will not automatically switch to a defective amplifier.
- Manual Mode: The amplifiers can also be manually switched from the front panel or remotely. In Manual mode, automatic switching will not occur upon fault detection, although the monitor and alarm circuits still function.
Local or Remote Control
The systems include provision for remote status monitoring and operation. Typical uses are for sending status information to a centralized monitor and control system or for remotely controlling the system from a nearby building. All Local front panel features can be remotely controlled and monitored, except for the Remote/Local switch. In Remote mode, the front panel controls are inoperative, but the indicators continue to reflect the current operating state of the system. Remote status outputs are Form ‘C’ dry relay contacts capable of switching up to 100 Vdc at 100 mA. Remote control inputs are opto-isolator coupled for noise and common mode ground loop rejection.
Specifications
Parameter |
Notes |
Min. |
Nom./Typ.(+) |
Max. |
Units |
|---|---|---|---|---|---|
| Frequency |
Band "E" Band "R" Band "M" Band "V" |
10.95 10.70 14.00 13.75 |
12.75 12.75 14.50 14.50 |
GHz GHz GHz GHz |
|
| System Gain |
LDx-13S22x amplifiers LDx-13S32x amplifiers LDx-13S42x amplifiers |
18 28 38 |
21 31 41 |
dB dB dB |
|
| Gain Flatness |
Full Band With attenuators (Option) |
±0.75 ±1.5 |
dB dB |
||
| Gain Slope | Per 40 MHz With attenuators (Option) |
±0.25 ±0.3 0 |
dB dB |
||
| Gain Match | Between LDAs | 1 | dB | ||
| Noise Figure | At +23 °C | 5.5 | 6.0 | dB | |
| Power Output at 1 dB compression |
LDx-13Sxx2 amplifiers LDx-13Sxx3 amplifiers |
+13 +18 |
+15 +20 |
dBm dBm |
|
| Third Order Output Intercept Point |
LDx-13Sxx2 amplifiers LDx-13Sxx3 amplifiers |
+23 +28 |
+25 +30 |
dBm dBm |
|
| Group Delay per 40 MHz | Linear Parabolic Ripple |
0.03 0.003 1.0 |
ns/MHz ns/MHz2 ns p-p |
||
| VSWR |
Input (50 ohms) Output (50 ohms) |
1.20 1.20 |
1.25 1.25 |
:1 :1 |
|
| Maximum Input Power | Damage threshold | +10 | dBm | ||
| Connectors |
RF Input/Output Remote Input Alarm Output Serial I/O (RS-232/-422/-485) |
Type N Female (50 ohms) 9-pin D Male 37-pin D Male 9-pin D Female |
|||
| Operating Modes | Manual or Automatic | ||||
| Alarm Output | Form 'C' contacts | 100 Vdc / 100 mA | |||
| Remote Inputs | Control inputs | Contact closure to ground; withstand 5 V, sink 5 mA | |||
| Power Requirements |
Voltage (autoranging) Frequency Power |
47 |
90–135 or 175–264 50 |
63 |
Vac Hz W |
| Size | 19 x 3.5 x 24 483 x 89 x 610 |
inches mm |
|||
| Temperature Range | Operating | 0 | +50 | °C |
Ku-Band Single Thread Outline Drawing
Ku-Band Redundant Block Diagrams
-
Single Thread Ku-Band (LD-13S Series)
Features
LD-13S series Ku-Band Line Driver Amplifiers (LDAs) are specially designed for use in satellite earth stations and general purpose telecommunications applications. Utilizing proven GaAs FET technology, these amplifiers have been designed for reliable operation in both fixed and transportable applications.
- GaAs FET design
- Internal regulator
- Reverse polarity protection
- Input/output isolators
- High reliability
- SMA (F) connectors
Options
- 22, 32, or 42 dB minimum gain
- +20 or +25 dBm min. output power at P1 dB
- Transmit or receive frequency bands
Specifications
Parameter
Notes
Min.
Nom./Typ.(+)
Max.
Units
Frequency Band "E"
Band "R"
Band "M"
Band "V"10.95
10.70
14.00
13.7512.75
12.75
14.50
14.50GHz
GHz
GHz
GHzGain “-13S22x”
“-13S32x”
“-13S42x”22
32
4225
35
45dB
dB
dBGain Flatness Full Band
Per 40 MHz±0.75
±0.25dB
dBNoise Figure 3.5 4.0 dB Power Output at 1 dB compression “-13Sxx2” (Standard)
“-13Sxx3” (High Power)+15
+20+17
+21dBm
dBmThird Order Output Intercept Point “-13Sxx2” (Standard)
“-13Sxx3” (High Power)+25
+30+27
+31dBm
dBmGroup Delay per 40 MHz Linear
Parabolic
Ripple0.03
0.003
1.0ns/MHz
ns/MHz2
ns p-pVSWR Input
Output1.35
1.351.50
1.50dBm
dBmMaximum Input Power Damage threshold +10 dBm Connectors Input/Output
Power
SMA Female
RFI Filter Soldier TerminalPower Requirements Voltage
Current (Standard)
+11
+12
240
+16
330Vdc
mA
Temperature Range Operating; case 0 +60 °C -
1:1, 1:2 Redundant Ku-Band (LRK1 Series)
Features
Redundant Line Driver Amplifier (LDA) systems minimize system downtime due to LDA failure by providing a spare LDA and an automatic means of switching to the spare upon failure of the primary LDA. A 1:1 system provides one spare LDA for one primary LDA. A 1:2 system provides one spare LDA for either of the two primary LDAs.
Used to overcome cable losses, the systems are designed for installation at satellite earth stations in standard 19-inch EIA equipment racks. The systems are designed to house LD-13S Series Ku-Band LDAs.
- Standard 19” rack panel, 3.5” high
- Dual redundant power supplies
- Worldwide AC input capability
- Amplifier bias current monitoring to detect faults
- Manual or automatic operation
- Manual override switch control on rear panel
- Serial I/O
- Offline I/O with isolators
- Cooling fan
- Gain matching of amplifiers to ±1 dB
Options
- Variable attenuators located either at the output of each LDA or at each system path output
Operating Modes
- Automatic Mode: In Automatic mode, if a failure is detected in an online amplifier, the standby amplifier is switched on line. Typical switchover time is 100 milliseconds. For 1:2 systems, in the case that both on-line amplifiers fail, priority is selectable to either Pol 1 or Pol 2. For either 1:1 or 1:2 systems, the unit will not automatically switch to a defective amplifier.
- Manual Mode: The amplifiers can also be manually switched from the front panel or remotely. In Manual mode, automatic switching will not occur upon fault detection, although the monitor and alarm circuits still function.
Local or Remote Control
The systems include provision for remote status monitoring and operation. Typical uses are for sending status information to a centralized monitor and control system or for remotely controlling the system from a nearby building. All Local front panel features can be remotely controlled and monitored, except for the Remote/Local switch. In Remote mode, the front panel controls are inoperative, but the indicators continue to reflect the current operating state of the system. Remote status outputs are Form ‘C’ dry relay contacts capable of switching up to 100 Vdc at 100 mA. Remote control inputs are opto-isolator coupled for noise and common mode ground loop rejection.
Specifications
Parameter
Notes
Min.
Nom./Typ.(+)
Max.
Units
Frequency Band "E"
Band "R"
Band "M"
Band "V"10.95
10.70
14.00
13.7512.75
12.75
14.50
14.50GHz
GHz
GHz
GHzSystem Gain LDx-13S22x amplifiers
LDx-13S32x amplifiers
LDx-13S42x amplifiers18
28
3821
31
41dB
dB
dBGain Flatness Full Band
With attenuators (Option)±0.75
±1.5dB
dBGain Slope Per 40 MHz
With attenuators (Option)±0.25
±0.3 0dB
dB
Gain Match Between LDAs 1 dB Noise Figure At +23 °C 5.5 6.0 dB Power Output at 1 dB compression LDx-13Sxx2 amplifiers
LDx-13Sxx3 amplifiers+13
+18+15
+20dBm
dBmThird Order Output Intercept Point LDx-13Sxx2 amplifiers
LDx-13Sxx3 amplifiers+23
+28+25
+30dBm
dBmGroup Delay per 40 MHz Linear
Parabolic
Ripple0.03
0.003
1.0ns/MHz
ns/MHz2
ns p-pVSWR Input (50 ohms)
Output (50 ohms)1.20
1.201.25
1.25:1
:1Maximum Input Power Damage threshold +10 dBm Connectors RF Input/Output
Remote Input
Alarm Output
Serial I/O (RS-232/-422/-485)
Type N Female (50 ohms)
9-pin D Male
37-pin D Male
9-pin D FemaleOperating Modes Manual or Automatic Alarm Output Form 'C' contacts 100 Vdc / 100 mA Remote Inputs Control inputs Contact closure to ground; withstand 5 V, sink 5 mA Power Requirements Voltage (autoranging)
Frequency
Power
47
90–135 or 175–264
50
63
Vac
Hz
WSize 19 x 3.5 x 24
483 x 89 x 610
inches
mmTemperature Range Operating 0 +50 °C -
Diagrams
Ku-Band Single Thread Outline Drawing
Ku-Band Redundant Block Diagrams
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Literature
