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Chip Scale Atomic Clock offers various frequency output options.

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September 30, 2011 - Available with 16.384 and 10.24 MHz output options, SA.45s Chip Scale Atomic Clock (CSAC) enables portable applications requiring precise synchronization and time keeping in GPS-denied environments. Product, which is 16 cc in volume, weighs 35 g, and draws 120 mW, brings autonomous, reliable timekeeping to applications with space/power constraints, such as dismounted IED jammers, UAVs, next-gen man-pack radios, military handheld GPS units, and geophysical sensors.

Symmetricom Expands Quantum(TM) Chip Scale Atomic Clock Family

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Symmetricom, Inc.
2300 Orchard Pkwy.
San Jose, CA, 95131

Press release date: September 20, 2011

Chip Scale Atomic Clock (CSAC) Now Available with 10.24 MHz and 16.384 MHz Output Frequencies to Meet Emerging Customer Needs

SAN JOSE, Calif. -- Symmetricom®, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency technologies, today announced that the recently-released SA.45s Chip Scale Atomic Clock (CSAC) is now available with new frequency output options. Introduced in January, the SA.45s CSAC is the first commercially available chip scale atomic clock, enabling portable applications requiring precise synchronization and time keeping in GPS-denied environments.

Symmetricom has developed the 16.384 MHz and 10.24 MHz output versions of the SA.45s CSAC to support the application needs of its expanding customer base and to address a wider range of the oscillator market. The new frequencies make it much easier for the makers of specialized sensors to integrate the SA.45s into their existing sensor designs. The full specifications for new options can be found at

The SA.45s CSAC is only 16cc in volume, weighs only 35 grams and draws a mere 120mW of power. It brings autonomous, reliable timekeeping to applications for which an atomic clock would not have previously been considered due to space and/or power constraints. Example applications include dismounted IED jammers, unmanned aerial vehicles (UAVs), next-generation man-pack radios, military handheld GPS units, and geophysical sensors.

Symmetricom is continuing to invest in the technology behind the SA.45s CSAC, and the announcement of new output frequencies is only the most recent example of this. Other examples include the previously announced Tactical Grade Atomic Clock (TGAC) and ManTech programs.

Symmetricom timing experts will be exhibiting at the Institute for Navigation conference, ION GNSSS, September 21-23, Booth #801/803 and will feature a live SA.45s CSAC demonstration. The demonstration will measure the accuracy, stability and exceptional performance in a small form factor. Symmetricom's comprehensive portfolio of timing & frequency solutions will also be on display at ION GNSS.

About the SA.45s Chip Scale Atomic Clock (CSAC)

Symmetricom's SA.45s CSAC is the world's first commercially available chip scale atomic clock, providing the accuracy and stability of atomic clock technology while achieving true breakthroughs in reduced size, weight and power consumption (16cm3 volume, 35g weight, 120mW power consumption).

For more information, see

About Symmetricom, Inc.

Symmetricom (NASDAQ: SYMM), a world leader in precise time solutions, sets the world's standard for time. The company generates, distributes and applies precise time for the communications, aerospace/defense, IT infrastructure and metrology industries. Symmetricom's customers, from communications service providers and network equipment manufacturers to governments and their suppliers worldwide, are able to build more reliable networks and systems by using the company's advanced timing technologies, atomic clocks, services and solutions. All products support today's precise timing standards, including GPS-based timing, IEEE 1588 (PTP), Network Time Protocol (NTP), Synchronous Ethernet and DOCSIS® timing. Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit:

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