|[January 29, 2014]
Epson Introduces New "Any-Rate" Programmable VCXOs
SAN JOSE, Calif. --(Business Wire)--
Epson Electronics America, Inc., the world leader in quartz crystal
technology, today introduces two low-jitter programmable
voltage-controlled crystal oscillators. The new products, the VG7050EAN
and VG7050ECN, can be programmed over a range of 50 MHz to 800 MHz and
achieve the lowest jitter (0.27 ps at 622.08 MHz) and lowest power
consumption (70 mA at 3.3V) of any programmable VCXO in the industry.
VG7050ECN (Photo: Business Wire)
Epson's VG7050EAN and VG7050ECN "Any-Rate" programmable VCXOs enable
optical transmission equipment to support multiple protocols and line
rates with a single oscillator. Earlier equipment used either a single
fixed-frequency oscillator which had to be swapped out to change
frequencies or multiple fixed-frequency oscillators which increased
board space and cost.
Seeking to solve these problems, Epson created the new low-jitter
low-power programmable VCXOs by combining a highly accurate and stable
high-frequency fundamental (HFF) crystal that can oscillate at a
fundamental frequency over 100 MHz with a low-jitter fractional-n PLL
IC. Epson's HFF crystal technology is more reliable than 3rd
overtone crystals and achieves better phase noise and jitter than
low-frequency fundamental crystals. As a result, Epson's VG7050EAN and
VG7050ECN achieve the world's lowest jitter (0.27 ps) of any
programmable VCXO at both SONET (622.08 MHz) and Ethernet (156.25 MHz)
Both the VG7050EAN and VG7050ECN are factory programmed for frequency
and absolute pull range (APR). The default settings can be overwritten
using an I2C bus so users can program any output frequency
and APR they require. To simplify multi-protocol designs, the VG7050ECN
allows four frequencies to be pin-selectable.
Moving forward, Epson will leverage its unique technological strengths
in crystal microfabrication and semiconducors to provide customers with
device solutions that are safe, easy to use, and dependable.
Features and specifications
Low noise and low jitter
These products use an HFF crystal unit
that is capable of oscillating at a fundamental frequency of 100 MHz
or more. The HFF crystal unit is combined with Epson's own
fractional-N PLL IC to achieve low jitter, optimize the frequency of
the crystal unit, and control integer-boundary spurs.
Low current consumption
The maximum current consumption is 90 mA
(including LVPECL terminal load drive current). Epson's VG7050EAN and
VG7050ECN are the industry's lowest power devices in this class.
The output frequency can be set to any
frequency between 50 MHz and 800 MHz.
Users can select the desired absolute pull range
(APR) from among 12 steps within the range of 0 to �180 � 10-6.
Epson is a global innovation leader whose product lineup ranges from
inkjet printers and printing systems, 3LCD projectors and industrial
robots to sensors and other microdevices. Dedicated to exceeding the
vision of its customers worldwide. Epson delivers customer value based
on compact, energy-saving, and high-precision technologies in markets
spanning enterprise and the home to commerce and industry.
Led by the Japan-based Seiko Epson Corporation, the Epson Group
comprises more than 73,000 employees in 94 companies around the world,
and is proud of its ongoing contributions to the global environment and
the communities in which it operates.
About Epson Electronics America, Inc.
Epson Electronics America, Inc. (EEA), is a subsidiary of Japan-based
Seiko Epson Corporation (SEC (News - Alert)) and is responsible for sales, marketing
and engineering of the product lines of SEC's Microelectronics Device
Division in the America's. EEA provides a wide array of timing and
frequency control products, integrated circuits, sensing device and
system solutions for customer products and applications that require
high levels of accuracy, reliability, stability, energy efficiency and
compact design. Based in San Jose, California, the EEA Group has three
regional offices, more than 40 sales offices in the U.S. and a growing
network of exclusive distributors.
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