Cypress : Programmable clock generators have ultra-low phase jitter

Cypress Semiconductor Corp. has introduced the FleXO(tm) family of programmable high-performance clock generators. The new clocks deliver ultra-low phase jitter as low as 0.6 ps – typical, across the 12 kHz to 20 MHz range, exceeding the requirements of demanding high-speed serial interface standards such as 10 Gigabit Ethernet, 10 Gigabit Fibre Channel, PCI Express and Serial Advanced Technology Attachment (SATA). The flexible clocks can be instantly programmed in the factory or field to any frequency up to 650 MHz. The programmability of the FleXO family speeds development and simplifies testing for improved manufacturing quality.

FleXO clock generators employ powerful, programmable Phase Locked-Loop technology, which can be used in integer or Frac-N mode, to synthesize and tightly control the frequency of ultra-low noise clock signals using a standard low-cost crystal input. These solutions provide a strong alternative to expensive and inflexible SAW oscillators and overtone crystal oscillators. The family is ideal for switches and routers, 3G wireless base stations, Fiber-To-The-Home (FTTH) hubs, enterprise hard-disk drives, test equipment, professional video equipment and any system requiring high-performance clocks. More information on the FleXO family is available at
“The FleXO high-performance clock family offers the industry’s best combination of flexibility and performance, enabling system designers to bring their products to market faster, and procurement managers to simplify their supply chains,” said Dave Kranzler, vice president of Synchronous Memory and Timing Products at Cypress. “The FleXO family moves our timing solutions portfolio into the high-speed networking and telecom equipment markets, where we have strong customer relationships based on our synchronous SRAM leadership.”
“Demand for increasing precision is at the heart of the growing market for high-performance timing ICs in communication and data processing applications,” said Sergis Mushell, principal research analyst at Gartner.  “Programmable clocks offer design flexibility to engineers, addressing a wide array of applications within the communication and data processing segments.”

The FleXO family leverages Cypress’s patented programmable clock technology to instantly generate any frequency from 50 to 650 MHz, including non-standard frequencies often required to optimize performance of an FPGA or ASIC. Designers can adjust the output frequency of a FleXO clock via simple pin selection or I2C programming to allow usage of a single device across a family of hardware platforms. FleXO clock generators support frequency margining, which enables designers to vary clock frequency with 0.2ppm precision to test system robustness across potential frequency fluctuations. The FleXO family is available in a broad array of synthesizer, VCO and crystal-inside XO and VCXO options to support a variety of applications.

FleXO high-performance clocks are currently in production in multiple configurations, and are available in 8-pin TSSOP, 16-pin TSSOP and 6-pin LCC packages. The CY3675-CLKMAKER1 CyClockMaker Programming Kit is currently available for $160, and the CY3675-LCC6A FleXO Socket Adapter is available for $57. These kits are available on the Cypress eShop at
About Cypress

Cypress delivers high-performance, mixed-signal, programmable solutions that provide customers with rapid time-to-market and exceptional system value. Cypress offerings include the PSoC(r) programmable system-on-chip, USB controllers, general-purpose programmable clocks and memories. Cypress also offers wired and wireless connectivity technologies ranging from its CyFi(tm) Low-Power RF solution, to West Bridge(r) and EZ-USB(r) FX2LP controllers that enhance connectivity and performance in multimedia handsets. Cypress serves numerous markets including consumer, computation, data communications, automotive, and industrial. Cypress trades on the NYSE under the ticker symbol CY.

Visit Cypress online at

Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.

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