HP 5087A Distribution Amplifier

The HP 5087A amplifier provides the flexibility required for distribution output signals from the output of high-quality frequency standards. Low distortion and excellent isolation make it ideal for providing multiple outputs from atomic or crystal frequency standards. The three input channels will accept 10, 5, or 1 MHz, or 100 kHz, in any combination. The number of outputs for each channel is selectable up to a total of 12 outputs. Voltage levels are individually adjustable from 0 to 3 Vrms for each of the output channels.

The modular HP 5087A design lets you structure the product for a variety of distribution needs. Special combinations of input and output modules are available.

[ Features ]

Low noise and excellent isolation
Exceptional phase stability and uninterrupted switchover to standby power
Versatility for special requirements
3 input channels, up to 12 outputs

Low noise

Shielding around each input and output plug-in amplifier assures minimum noise and crosstalk. The tuned output amplifiers provide clean signals and high channel-to-channel isolation.

Exceptional phase stability

A 115/230 volt power supply provides well-regulated current for the amplifiers. Line voltage fluctuations have no measurable effect on the amplitude or phase of the outputs. Provision for external 22-30 volt DC connections insures uninterrupted operation in the event of AC failure.

Versatile

The standard configuration (Option 031) accepts the normal frequency standard signals of 5 MHz, 1 MHz, and 100 kHz, and provides four outputs at each of these frequencies. Alternate configurations provide a variety of input and output connections and frequencies.

[ Specifications ]

Inputs (Up to three, rear-panel BNC)

Frequencies: 10 MHz, 5 MHz, 1 MHz, or 100 kHz
Level: 0.3 to 3.0 V rms, 50 ohms
Harmonic distortion: >40 dB below rated output
Nonharmonic distortion: >80 dB below rated output

Outputs (Up to 12 rear-panel BNC)

Frequencies: 10 MHz, 5 MHz, 1 MHz, or 100 kHz
Level: 0 to 3 V into 50 ohm (screwdriver adjustment)

Isolation

Load (open or short on any other channel): 
  Amplitude change: 0.1%
  Phase change:	
    <0.1 ns at 5 or 10 MHz
    <0.5 ns at 1 MHz
    <5.0 ns at 100 kHz
		
  Injected signal: 1 V signal up to 50 MHz applied to any output except 
  10 MHz, will be down >60 dB in all other outputs; 10 MHz output channel 
  will be down >50 dB.

SSB Phase Noise (5 MHz): <145 dB below signal in 1 Hz BW for frequencies
<1 kHz from carrier

Stability

  Amplitude: ą0.5 dB, 0 degrees to 50 degrees C
  Phase: <0.1 ns/degree C, 5 and 10 MHz
  Humidity: 95% at 40 degrees C
  Altitude: Up to 30,000 ft

[ Ordering ]

HP 5087A Distribution Amplifier Mainframe Opt 001 5 MHz output amplifier Opt 002 1 MHz output amplifier Opt 003 0.1 MHz output amplifier Opt 004 Input preamplifier (0.1 to 10 MHz) Opt 005 5 to 1 MHz input divider Opt 006 1 to 0.1 MHz input divider Opt 011 5 to 10 MHz input doubler Opt 012 10 MHz output amplifier Opt 013 10 to 5 MHz input divider Opt 014 10 to 1 MHz input divider Opt 031 5, 1, 0.1 MHz inputs; 4 outputs at each Opt 032 Single 5 MHz input and 12 outputs Opt 033 Single 10 MHz input and 12 outputs Opt 034 Single 5 MHz input, 4 each; outputs at 5, 1, and 0.1 MHz Opt 908 Rack Flange Kit

[ Key Literature ]

No literature is available online at this time.

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[ Related ]

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