Frequency divider is flexible trigger

The PRL-260ANT is a novel programmable TTL/NECL frequency divider.

Available now from Pulse Research Lab (PRL) the PRL-260ANT is a novel programmable TTL/NECL frequency divider.

This self-contained divider pod accepts an input frequency (f) from DC to 1GHz and outputs divided TTL and ECL clock signals with ratios from f/2 to f/4096.

The PRL-260ANT can be cascaded with additional PRL frequency dividers for even higher division ratios.

All divided outputs are synchronous with the input frequency and can be used for triggering data acquisition systems, pattern generators, oscilloscopes and networking/telecommunications devices.

The PRL-260ANT will accept TTL and ECL clock signals as well as AC-coupled PECL, LVPECL or sinewave signals.

The input frequency f is first divided down to f/n, where n is between 2 and 256.

The f/n signal is then further divided by 1, 2, 4 or 8 for the first-phase ECL and TTL outputs and by 2, 4, 8 or 16 for the second-phase ECL output.

The division ratios are programmed via a series of DIP switches.

All outputs are square waves (50% duty cycle), except for the first-phase output when the final divisor is set to 1.

All outputs are complementary and will drive long lines.

TTL outputs are back-matched and will drive terminated or unterminated loads.

ECL outputs can drive 50ohm loads terminated into +/-2V or AC-coupled 50ohm loads.

The PRL-260ANT is ideal for applications where a frequency divider or prescalar is needed for triggering or down-sampling, and the multiple logic inputs and outputs make it extremely useful in mixed-logic environments.

The two phases of output enable applications requiring two different ratios from a common reference frequency.

Applications for the PRL-260ANT include data acquisition, test, measurement, R and D and system integration.

The unit includes an AC adapter for ready-to-use convenience on the bench or in a system.

All I/O connectors are SMA, except for the TTL input, which is BNC.

The extruded aluminium housing is suitable for mounting with the optional brackets.

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