Santa Clara -  May 13, 2008 - Silego Semiconductor, an industry leader in timing generators broadens its product offering to include a complete line of EMI (Electro-magnetic Interference) reduction spread spectrum clock generators. Spread spectrum clock generators are devices that reduce EMI radiation by spreading clock energy by a fixed amount. The benefits of a spread spectrum clock generator is that it eliminates the need for expensive shielding, lowers BOM cost, and speeds the process of time to market. Spread spectrum clock generators are used in high speed communications, consumer, and computing applications including routers, switches, servers, HDTV’s, set-top boxes, base stations, PCs, and printers. Silego has a complete spread spectrum clock offering and features an on-board NVM (Non-Volatile Memory) for quick turn applications, and patent pending FrequencyAware^TM on certain devices.

Introducing the SLG4421
The SLG4421 is a 1x EMI reduction spread spectrum clock generator that features industries widest input frequency range of 24MHz to 200MHz, lowest current consumption in its class, and FrequencyAware^TM . FrequecyAware^TM  is a proprietary technology pioneered by Silego that determines automatically the input frequency eliminating the need for input selection pins commonly found on EMI reduction clock generators. The benefits of eliminating the input selection pins reduces pin count, and speeds time to market since there is one less thing to worry about.

Introducing the SLG4300/400
The SLG4300/400 are EMI reduction spread spectrum clock generators that features an on-board (NVM) Non-Volatile Memory for rapid proto-typing, four general purpose programmable I/O pins, and FrequencyAware^TM  (SLG4400 only.) The SLG4300 is a general purpose EMI reduction clock that features a wide 64MHz to 500MHz VCO tuning range, whereas the SLG4400 is a general purpose EMI reduction clock that features a wide 20MHz to 200MHz input clock driver with FrequecyAware^TM.
“We are extremely excited to offer the SLG4300/400 and SLG4421. These products helps to reduce overall system cost, and speeds time to market with the on-board NVM on the SLG4300/400, and FrequencyAware^TM on the SLG4421,” says Herbe Chun, Marketing, Silego Semiconductor.

Challenges
EMI reduction clocks poses challenges in maintaining a symmetrical spread profile, in consuming low power, while extending the operating input frequency range and VCO frequency range. At Silego, it is believed that we have met these challenges, and produced some of the world’s highest performance EMI reduction clocks.

Price
The SLG4311/2/4/8 and SLG4300/400 are available in 8-pin SOIC priced at $1.25, and 8-pin TSSOP priced at $1.27, and space savings 3x3x0.75mm3 TDLMP priced at $1.30 each in 1,000 quantities. The SLG4421 is available in 8-pin SOIC priced at $1.27, and 8-pin TSSOP priced at $1.29 each in 1,000 quantities.

Samples and Availability
The SLG4300/400 is available in sample quantities to select customers. General sampling of all other EMI reduction clock generators including the SLG4421 and standard 1x, 2x, and 4x EMI reduction clocks (SLG4311/2/4/8) are ready for shipment. Visit Silego’s website at www.silego.com regarding samples and for more information about Silego.


Silego’s Advantages
Silego specializes in silicon timing and is located in Santa Clara, California. Silego has two design centers in Santa Clara, California, and in Seoul, Korea and has a sales office in Taipei, Taiwan. Silego offers a complete line of timing products addressing the computation, communication, consumer, and DIMM markets. Further, Silego has shipped more then 50M units in 2007 to numerous top-tier OEMs and ODMs, and today Silego is the largest notebook timing supplier.

For more information contact:
Herbe Chun
Marketing
Silego Semiconductor
1715 Wyatt Drive
Santa Clara, CA 95054
408-496-1717
hchun@silego.com

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