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Standard 3 Year Factory Warranty
Femtosecond Digital Delays
20 Channels of Femtosecond Digital Delays
Model 588-OEM Series Board Level Pulse Generator
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Model 555 Digital Delay-Pulse Generator



Configuration: 2, 4 or 8 channels of delays and widths per instrument
Timing Delays and Widths:
Delay: 0 to 99.999999999 seconds with 1 ns resolution
Width: 10 ns to 99.999999999 seconds with 1 ns resolution
Accuracy: 1 ns + 0.0001 x time
RMS Jitter: 1 ns
Trig Delay: Ext. Trig to T0 < 250 ns
Trigger Modes: External Trigger, External Gate, Internal(continuous), single shot burst, duty cycle
External Trigger/Gate: Opto-isolated input circuitry.
Rate: 0 to 1.0 MHz
Threshold: 3 V
Trigger Slope: Rising or falling edge, selectable
Gate: Active low or active high, selectable
Impedance: 1000 ohms
Internal Rep Rate Generator:
Rate: 0.01 Hz to 1 MHz
Accuracy: 1 ns + 0.0001 x period
RMS Jitter: 1 ns
Burst Mode: 1 to 50,000 pulses
Single Shot: Pushbutton provides a single trigger
Burst: May be pushbutton or external trigger initiated.
Each channel may provide a burst from 1 to 50,000 pulses at the internal rep rate. The Burst mode is selectable for each channel and each of those channels may have an independent number of pulses.
Duty Cycle: This mode allows the timing events to ON for a specific duration and then OFF for another specific duration. The ON/OFF cycles can be counted and then terminated after a specified number of cycles
Outputs: Selectabe, a fixed amplitude TTL/CMOS or adjustable level to 12V, Optional 35V output
Impedance: 50 ohm
Adjustable Amplitude:
Slew Rate: >.2V/ns
Amplitude: 1 - 6V into 50 ohm load
2 - 12 V into high impedance
Peak Current: 150 mA per channel
Ave. Current: 200 mA ave.( total for all channels)
Polarity: Positive, active high, or negative, active low, selectable
TTL/CMOS:
Transition times: < 5 ns
Amplitude: 4V
Computer Interface:
RS232: 9600 Baud
IEEE 488: Optional
Model Selection:
Model 555-2c: 2 Channels
Model 555-4c: 4 Channels
Model 555-8c: 8 Channels
Option G: GPIB
Options: G-GPIB (500, 507, 555 only)
GH2/GH4/GH8 - GPIB and 35V High Voltage Outputs, bundled (555 only)
AC-Special AC outputs (507 only)
Accessories: 19" Rack Mount Ñ P/N6914-500, P/N6925-507, P/N6923-555
Extended Service/Calibration Agreements available
   


Model 555 - Pulse Generator

Features

•  Unprecedented price / performance

•  Easy-to-use display and interface

•  Delays and widths for each channel

•  2, 4 and 8 channel configurations

•  1 ns timing, gate, burst, divide by N

Although the Model 400, 500, 555 and 565 are all still supported by Berkeley Nucleonics, they have been replaced by the Model 575. Model 575 Digital Delay Pulse Generator.

The Model 555 provides multi-channel 1 ns-resolution timing, delaying, gating, pulsing and syncing functions for a very low price without compromising quality. There are many practical modes of operation and features in addition to the traditional digital delay and pulse generator modes. For usefulness and value – there is nothing comparable.

Each channel provides both delays and widths – so a 2-channel Model 555 provides the same delay and width functionality of competitive 4-channel units. The 555 is available in 2, 4 and 8 channel configurations.

This Digital Delay/Pulse Generator provides precise delays and widths with 1 ns resolution for times up to 100 seconds. These pulses are synchronized to a common trigger or an internal trigger. This is particularly useful where several pulses or gates need to be delayed and timed with respect to each other or the common trigger. In addition to standard Digital Delay and Pulse Generator features, the Model 555 offers many unique modes.


Channels:
  1. May be gated and gate enabling is on a per channel basis
  2. Have independent output enable/disable so that any or several channels may be disabled while the others are operating.
  3. Provide one to 50,000 pulses in a burst and each channel may have its own independent number of burst pulses.
  4. May provide an output for every n triggers(divide by n) and each channel may have a different n.
  5. Operate with a specific ON/OFF duty cycle and terminate operation after k cycles
  6. May trigger from an accurate and stable internal rep rate generator or an external trigger.
  7. Have a selectable output polarity (active low or active high).
  8. Have a selectable output from fast TTL/CMOS with fixed amplitude to an adjustable level output with amplitudes of 12V into a high impedance.
  9. Have optional 35V narrow outputs for devices needing a higher-level trigger while still providing standard low level outputs.








Berkeley Nucleonics Corporation

2955 Kerner Blvd., San Rafael CA 94901 U.S.A

Phone: 800.234.7858 Fax: 415.453.9956

E-mail: info@berkeleynucleonics.com