Clock generator handles 2-GHz signals
Staff -- Test & Measurement World, 4/1/2005
Engineers often use RF synthesizers to generate clock signals over 1 GHz. With the CG635, you can free those expensive instruments for other tasks. The CG635 can generate single-ended and differential clocks at frequencies from 0.001 Hz to 2.05 GHz. Jitter is less than 1 ps with phase noise less than –80 dB and with spurious response better than –70 dBc at 622.06 MHz, a common telecom data rate.
Output levels include CMOS, PECL, ECL, RS-485, and LVDS. Optional clock receiver modules ($125) connect to the CG635 through a category-6 LAN cable. They let you produce outputs at distances up to 50 ft from the instrument without signal degradation. A PRBS option ($550) provides you with pseudorandom data streams for testing high-speed serial bus components and systems.
Price: $2490. Stanford Research Systems, www.thinksrs.com.
