PRL-258 4-Φ ECL Clock Generator

*OBSOLETE* The PRL-258 has been discontinued. New applications should use the PRL-174ANT for clock generation, or the PRL-260ANT for frequency division. Information about the PRL-258 is for information only.

Mini Modular Instruments > Frequency Dividers > PRL-258

• Multi-Phase Clocks in High Speed Digital systems
• Low Jitter Multi-Phase Clock Source
• SONET Clock Generator
• An Essential Lab Tool for Working with ECL Circuits

• 50 ps typical Edge Jitter
• 100 ps typical skew between f/n & f/n outputs
• 1.2 GHz maximum clock frequency
• f, f  f/2, f/2  f/4, f/4 , f/8, and f/8 Outputs, Internal or External Clock
• User Specified Internal Xtal Clock Frequency
• Single-ended External Clock and Enable inputs with internal 50 Ω/-2 V Terminations
• Complementary Outputs drive 50 Ω loads terminated to -2 V
• DC coupled I/O’s Compatible with ECLinPS or 100 KH Devices
• SMA I/O Connectors
• Ready-to-Use 1.3 x 2.9 x 3.9-in. Module includes a -9 V AC/DC Adapter

Description

The PRL-258 is a high speed, low skew and low jitter 4-Φ ECL clock generator capable of running at clock speeds in excess of 1 GHz. It has a pair of buffered complementary clock outputs and three pairs of synchronous f/2, f/4 and f/8 complementary outputs, suitable for driving 50 Ω loads terminated to -2 V. A switch selects either the internal crystal clock source or external clock input. The synchronous enable (EN) input enables or disables the dividers when the clock is already in the LOW state.

Both the singled-ended External Clock and EN inputs are terminated internally to 50 Ω/-2 V. Standard internal crystal frequencies provided are 50 MHz, 200 MHz, 400 MHz, 500 MHz and 622.08 MHz, and the specific model number designation is PRL-258-XXX, where "XXX" represents the user specified clock frequency, such as 200 or 622, etc. Other crystal frequencies are also available.

Applications of the PRL-258 include precision multi-phase clocks in high speed digital systems, low jitter clock source for testing A/D systems, SONET Clock generator, GHz frequency division and general purpose Lab Tool for working with high speed ECL circuits.

The PRL-258 is housed in a 1.3 x 2.9 x 3.9-in. extruded aluminum enclosure and is supplied with a -9 V AC/DC Adapter.

Detail | Specifications | Diagram | Datasheet