Distribution Amplifiers

The HP Distribution Amplifier Family provides a cost-effective, modular approach to signal routing. The HP 59552A Fiber Optic Distribution Amplifier and the HP 59553A Fiber Optic Receiver products deliver clean, timing-quality transmission to multiple distribution points. In a typical application requiring distribution of one pulse per second (pps) and IRIG-B time code, an identical, synchronous clock signal and precise time of day are delivered to each distribution point.

The HP 59552A unit receives a digital (TTL) and an analog signal via two BNC connectors. The distribution amplifier combines the signals, and transmits the result on eight fiber-optic outputs. The HP 59553A receiver, located at remote equipment installations, receives the signal on fiber-optic cable. The time code and the one-pulse-per-second waveforms are separated, and each signal is fed out on a BNC connector. Signal integrity is maintained over fiber-optic cable lengths of up to one kilometer.

This product family includes

HP 5087A Distribution Amplifier

HP E1750A Broadband Distribution Amplifier

HP E1752A VXI Pulse Distribution Amplifier

HP 59552A Fiber Optic Distribution Amplifier

HP 59553A Fiber Optic Receiver

[ Features ]

Cost-effective method for distribution of common clock
Configurable for two distribution modes
High-integrity distribution meets stringent requirements of power utility substation synchronization
Electrical noise immunity from fiber-optic cabling
Front panel LEDs provide quick status indication

[ Specifications ]

Both warranted specifications and operating characteristics are covered below. 
To distinguish warranted specifications from operating characteristics, 
the word “nominal” appears next to a characteristic.


Combined Mode Digital Specifications

Edge rate maximum: 1 kHz
Edge delay: 2 us +/-5%(Input of HP 59552A to output of HP 59553A, 
  (excluding delay through fiber-optic cable, approximately 5 ns/meter)
Output pulse width: 70 us (nominal)
Input pulse polarity: positive or negative (selectable with internal jumper)
Output pulse, risetime/falltime: <5 ns into a 50 ohm load
Output short-term jitter: 5 ns rms (nominal) when signal transmitted 1 km

Combined Mode Analog Specifications

Analog input frequency range: 10 Hz to 10 kHz
Analog voltage gain: unity (input of HP 59552A to output of HP 59553A driving 
  600 ohm load)

Digital Mode

Transmission distance: up to 1 km
Edge rate maximum: 5 Mbd
Edge delay:
  Rising edge: 120 ns (nominal) plus delay through fiber-optic cable, approximately 5 ns/meter
  Falling edge: 2 ns rms (nominal) when signal transmitted 1 km
Pulse, risetime/falltime: less than 5 ns

[ Ordering ]

HP 5087A Distribution Amplifier HP E1750A Broadband Distribution Amplifier HP E1752A Pulse Distribution Amplifier HP 59552A Fiber Optic Distribution Amplifier HP 59553A Fiber Optic Receiver

[ Assistance ]

To help you make the right instrument choices

Local Sales Office

Related Information:

Related product groups available online:

Frequency/Time Standards and Synchronization