HPDA-100RM

HIGH PERFORMANCE DISTRIBUTION AMPLIFIER

The HPDA-100RM is a high performance distribution and isolation amplifier that may contain up to three distribution amplifier modules. Each module provides five unity gain outputs and 100 dB of channel-to-channel isolation, and 110 dB of reverse isolation. The phase noise of the modules is exceptionally low, typically –158 dBc/Hz @ 10 Hz and -174 dBc/Hz @ 10 kHz from the carrier. All the outputs are AC-coupled and the grounds are DC-isolated to reduce the effects of ground loops. The input and outputs have a low VSWR to minimize environmental effects on frequency distribution through long transmission lines.
The HPDA-100RM is available in a 1 U high 19” rack-mount enclosure.

  • Features
  • Applications
  • Specifications
  • Options
  • 80-120 MHz
  • Unity gain
  • Return loss -25 dB
  • High isolation: 100 dB
  • Low phase noise:
    -158 dBc/Hz @ 10 Hz
    -174 dBc/Hz @ 10 kHz
  • Low distortion: -43 dBc
  • High output: +16 dBm

    The specifications shown are for models HPDA-100RM-A, HPDA-100RM-B, HPDA-100RM-C and HPDA-100RM-D.
  • Atomic frequency standards
  • Instrumentation
  • Reference frequency distribution
  • Time scales

PARAMETER

CONDITIONS

TYP

UNITS

Input level

1 dB compression

16

dBm

Bandwidth

+/- 1 dB

80 - 120

MHz

Gain

@ 100 MHz

0.2

dB

Impedance

input

output

50

50

Ohms

Return loss

 

input (S11)

100 MHz

output (S22)

100 MHz

-22

 

-30

dB

 

 

Distortion

+13 dBm

-43

dBc

Isolation

output to output

output to input

100

110

dB

Phase noise

10 Hz

100 Hz

1 kHz

10 kHz

-158

-165

-171

-174

dBc/Hz

 

The specifications shown are for models HPDA-100RM-A, HPDA-100RM-B,
HPDA-100RM-C and HPDA-100RM-D.

Product NameNo. of InputsNo. of OutputsAC OperationDC Operation
HPDA-100i15
HPDA-100RM-A15
HPDA-100RM-B315
HPDA-100RM-B1110
HPDA-100RM-B2210
HPDA-100RM-C315
HPDA-100RM-D315
Specifications vary per model number. Contact SDI for data sheets.

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