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Next-Generation Miniaturized Rubidium Atomic Clock Improves Performance and adds Features without Increasing Size

Next-Generation Miniaturized Rubidium Atomic Clock Improves Performance and adds Features without Increasing Size

Microchip releases MAC-SA5X, enhancing its Miniature Atomic Clock (MAC) technology to deliver wider temperature range and rapid warm-up time

CHANDLER, Ariz., January 22, 2020 – As reliance on precise frequency and timing increases due to the Global Navigation Satellite System (GNSS) enabling 5G communication networks, data centers and other mission critical infrastructure, smaller size and high-performance atomic clock technology has become essential to support both military and commercial applications. To meet demand for a small footprint atomic clock, Microchip Technology Inc. (Nasdaq: MCHP) today announced the industry’s highest performance atomic clock for its size and power. The new device also delivers a wider thermal range, critical performance improvements and other enhancements over previously available technology. 

Microchip’s next-generation MAC-SA5X miniaturized rubidium atomic clock produces a stable time and frequency reference that maintains a high degree of synchronization to a reference clock, such as a GNSS-derived signal. Its combination of low monthly drift rate, short-term stability and stability during temperature changes allow the device to maintain precise frequency and timing requirements during extended periods of holdover during GNSS outages or for applications where large rack-mount clocks are not possible. Operating over a wider temperature range of -40 to +75 Celsius, the MAC-SA5X was designed to quickly achieve atomic stability performance by taking less time to lock compared to some of the existing clock technology available in the market. In an aircraft application, for example, these attributes enable faster power up of critical communication and navigation systems in extreme climates.

The MAC-SA5X allows system developers to avoid the need for extra circuitry by integrating a one pulse per second (1PPS) input pin for fast frequency calibration, saving time and development cost. In addition, the MAC-SA5X is designed with the same footprint as previous generation miniature atomic clock technology, reducing the development time to transition to the newer, higher performance device.

“As an industry leader, Microchip continues to invest in next-generation atomic clock technology for Department of Defense programs, mission-critical infrastructure and networks that require a high degree of accuracy in timekeeping and synchronization,” said Randy Brudzinski, vice president and general manager of Microchip's frequency and time business unit. “The MAC-SA5X adds several performance and feature enhancements while retaining the same footprint as the previous generation MAC – SA.3X products, enabling customers to easily transition to the new technology.”

Designed and manufactured in the U.S., the MAC-SA5X operates to the following additional specifications: <5.0E-11 frequency stability over operating temperature; <5.0E-11 per month aging rate; 6.3-watt power consumption; 47 cc in volume. The MAC-SA5X provides backward compatibility with its predecessor MAC-SA.3Xm family and comes in an ovenized crystal oscillator (OCXO)-sized package of 50.8 mm x 50.8 mm.

As a world leader in the research, development and manufacture of atomic clocks, Microchip has delivered more than 275,000 rubidium clocks, 120,000 chip-scale atomic clocks (CSACs), 12,500 Cesium clocks and 200 active hydrogen masers to customers worldwide.

Development Tools

The MAC-SA5x family of atomic clocks is supported by evaluation kit 090-44500-000.

Availability

Microchip’s new MAC-SA5X atomic clock is available now for pre-sampling. In February 2020 the MAC-SA5X will be available for deliveries. Microchip supports the MAC-SA5X with technical support services, as well as an extended warranty.

For additional information contact a Microchip sales representative, authorized worldwide distributor or visit Microchip's website. To purchase products mentioned here, contact a Microchip authorized distributor.

Resources

High-res images available through Flickr or editorial contact (feel free to publish):

2020020906 / 10.02.2020 / Electronic-components / Microchip Technology Inc. /

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