Epson Begins Volume Production of the SG2520 Series of Tiny, High-Frequency, Low Phase Jitter SPXOs

时间： 2021-01-15 来源：EPSON

技术问答

- At 44% smaller than EPSON's comparable previous products, the SG2520 series is ideal for small optical communications modules that support 400G -

- TOKYO, Japan, December 17, 2020 -

Seiko Epson Corporation (TSE: 6724, "Epson") has a new lineup of differential output¹ crystal oscillators (SPXO) that achieve low phase jitter² in the fundamental mode³ and come in a tiny 2.5 x 2.0 x 0.74mm package. The new lineup includes the SG2520EGN and SG2520EHN, as well as the SG2520VGN and SG2520VHN, all of which provide improved frequency stability. Epson has begun shipping SPXOs with frequencies up to 212.5MHz. Epson plans to begin volume production of SPXOs in frequencies from 212.5MHz to 500MHZ in March 2021.

SG2520EGN SPXO

Telecommunications network traffic and capacity continue to increase with the introduction of 5th-generation telecommunication systems (5G) and the evolution of mobile networks, the Internet of Things (IoT), Advanced Driver Assistance Systems (ADAS), and data centers. At the same time, the noise level permissible in communication signals is lower, and clocks used in network equipment must operate at high-frequency and have low phase jitter. Optical communication modules that connect network devices are becoming faster and smaller, and clocks with a frequency tolerance of ±20 x 10^-6 or less are needed for transmissions at ultra-high speeds of 400Gbps and 800Gbps and distances of 80km or more.

Like Epson's earlier comparable products, the SG3225EEN and SG3225VEN, the new SPXOs offer frequencies up to 500MHz and low phase jitter. In addition, they are equipped with a compact oscillator IC developed by Epson that compensates the temperature coefficient of frequency of the built-in HFF crystal oscillator⁴. The use of this IC enabled Epson to shrink the footprint of the SPXOs by 63% and their cubic volume by 44% compared to the previous products. Furthermore, they demonstrate superior frequency stability, with a frequency tolerance at -40 to +105℃ that is half that of the predecessor for SG2520EGN and SG2520VGN and 40% for SG2520EHN and SG2520VHN. The new series has the ideal characteristics for small optical communication modules.

As a leader in quartz crystal devices, Epson will continue to provide crystal device products required in electronics and social infrastructure.

Product applications

*Network equipment (routers, switches, optical modules, etc.)
*Data centers
*Factory automation equipment, measuring instruments
*High-speed DA/AD converters

Product specifications

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