HPDA-15RMi

HIGH PERFORMANCE DISTRIBUTION AMPLIFIER, 1-50 MHz

The HPDA-15RMi is an improved version of the High Performance Distribution and Isolation Amplifier with performance exceeding that required to distribute state-of-the-art atomic frequency standards. This new model offers the same exceptional low phase noise with a larger frequency bandwidth, greater isolation and improved stability. The inputs and outputs have a low VSWR to minimize environmental effects on frequency distribution through long transmission lines. All the outputs power levels are monitored and compared to a preset threshold of +7dBm. The HPDA-15RMi has also an open collector alarm signal that is available through the DC connector on the back panel.
The HPDA-15RMi comes in a 1U high, 19” rack-mount enclosure.

  • Features
  • Applications
  • Specifications
  • Options
  • 1 - 50 MHz
  • Unity gain
  • Low VSWR
  • High isolation: 140 dB
  • High output: +18 dBm
  • Low distortion: -48 dBc
  • Low temp. coefficient: 1.2 ps/ºC
  • Low phase noise:
    -155 dBc/Hz @ 1 Hz
    -171 dBc/Hz @ 10 kHz

    The specifications shown are for models HPDA-15RMi-A, HPDA-15RMi-B and HPDA-15RMi-C
  • Atomic frequency standards
  • Atomic time scales
  • High performance testing facilities
  • Laboratory frequency distribution
  • Reference frequency distribution

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

-35

-35

dB

Distortion

+13 dBm

+17 dBm

-48

-42

dBc

Isolation

output to output

output to input

140

145

dB

Phase noise

1 Hz

10 Hz

1 kHz

10 kHz

-155

-165

-170

-171

 

dBc/Hz

Temperature-delay

coefficient

0 - 50 ºC

1.2

ps/ºC

 

Product NameNo. of InputsNo. of OutputsAC OperationDC Operation
HPDA-5i15
HPDA-15RMi-A15Optional
HPDA-15RMi-B315
HPDA-15RMi-B1110
HPDA-15RMi-B2210
HPDA-15RMi-B3115
HPDA-15RMi-C315
HPDA-15RMi-C1110
HPDA-15RMi-C2210
HPDA-15RMi-C3115
Specifications vary per model number. Contact SDI for data sheets.

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