This self-contained clock source pod is manually programmable and generates TTL and ECL clock signals from 1.2MHz to 1.35GHz with high resolution (100ppm) and precision, crystal-like, stability
Pulse Research Lab (PRL) introduces the unique PRL 174ANT-1350 NECL/TTL programmable VCO clock source.
This self-contained clock source pod is manually programmable and generates TTL and ECL clock signals from 1.2MHz to 1.35GHz with high resolution (100ppm) and precision, crystal-like, short-term stability.
The internal VCO clock frequency f is continuously variable from 600MHz to 1.35GHz from the front panel.
In fine-adjust mode the full operating range is first divided into ranges via a 16-position rotary switch.
Within each range, the ten-turn pot provides high-resolution (100ppm) adjustment.
In coarse-adjust mode the ten-turn pot controls the entire 600MHz to 1.35GHz range.
Typical stability is 100ppm over 30 minutes or 250ppm over 12 hours (with a plus or minus 2C temperature variation).
An internal 9-bit divider (f/1 to f/512) divides the VCO frequency down to as low as 1.2MHz.
The module also features easy integration and connection to most types of devices and instruments via the TTL and NECL line-driver outputs.
Applications for the PRL-174ANT-1350 include precision clocks for high speed digital systems, low jitter clock source for testing A/Ds, Sonet clock generator, and a basic lab tool for working with high speed NECL and TTL/CMOS circuits.
For many lab requirements, the PRL-174ANT-1350 is an affordable and timely alternative to a large, expensive frequency synthesizer or custom crystal clock source (which can take up to 12 weeks for delivery).
The PRL-174ANT-1350 module is available to ship within two weeks, with an MSRP of less than US$1,500.
The unit includes an AC adapter for ready-to-use convenience on the bench or in a system.
Pulse Research Lab, established in 1990, provides signal buffering and translation modules for digital design, integration and testing.
The company offers high-performance, affordable basic lab tools and prototyping tools to professional electrical engineers, scientists, and technicians.
Founder David Kan states: "PRL's charter has been to listen to our customers' problems and provide answers.
"We've proudly and successfully been doing this for over 15 years."
