LNDA-15RM

LOW NOISE DISTRIBUTION AMPLIFIER, 1-50 MHz

The LNDA-15RM is an economical low noise distribution and isolation amplifier. This instrument may contain up to three amplifier modules. Each module accepts one input signal in the range of 1 to 50 MHz and provides five isolated output copies of the input signal with unity gain. All outputs are AC coupled and the grounds are DC isolated to reduce the effect of ground loops. Signal monitors are included on every output. The monitor LEDs are visible from the front panel. The instrument operates from AC power and the option for DC power operation is available for some models. On the units with DC power operation an open collector alarm is available on the back panel connector. The switch from AC to DC power supply is automatic and glitch free ensuring uninterrupted continuous operation.
The LNDA-15RM comes in a 1U high, 19” rack-mount enclosure.

  • Features
  • Applications
  • Specifications
  • Options
  • 1 - 50 MHz
  • Unity gain
  • Low VSWR
  • Isolation: 100 dB
  • High output: +18 dBm
  • Low distortion: -45 dBc
  • Low temp. coefficient: 3 ps/ºC
  • Low phase noise:
    -143 dBc/Hz @ 1 Hz
    -165 dBc/Hz @ 10 kHz

    The specifications shown are for models LNDA-15RM-B and LNDA-15RM-C
  • Calibration laboratories
  • Engineering facilities
  • Laboratory frequency distribution
  • Production and testing facilities

PARAMETER

CONDITIONS

TYP

UNITS

Input level

1 dB compression

18

dBm

Bandwidth

+/- 1 dB

1 - 50

MHz

Gain

@ 5 MHz

0.2

dB

Impedance

input

output

50

50

Ohms

Return loss

 

input (S11) 5 MHz

output (S22) 5 MHz

-30

-30

dB

Distortion

+13 dBm

+17 dBm

-45

-40

dBc

Isolation

output to output

output to input

100

105

dB

Phase noise

1 Hz

10 Hz

1 kHz

10 kHz

-143

-153

-162

-165

 

dBc/Hz

Temperature-delay

coefficient

0 - 50 ºC

3

ps/ºC

 

Product NameNo. of InputsNo. of OutputsAuto switchAC OperationDC Operation
LNDA-15RM-B315  
LNDA-15RM-B1110  
LNDA-15RM-B2210  
LNDA-15RM-B3115  
LNDA-15RM-C315 
LNDA-15RM-C1110 
LNDA-15RM-C2210
LNDA-15RM-C3115 
Specifications vary per model number. Contact SDI for data sheets.

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