SOURCE: Epson Toyocom Corp.

November 25, 2008 08:30 ET

Epson Toyocom's U.S.-Based Timing Products Division Develops Switchable Output Frequency Transmission Module for Use in Near-Field Communications

EL SEGUNDO, CA--(Marketwire - November 25, 2008) - Epson Toyocom Corporation's U.S.-based Timing Products Division has announced the development of a new transmission module that offers two switchable output frequencies and a footprint of just 5.0 x 3.2 mm. The ET-2000CB's small size and frequency options will help communications equipment manufacturers reduce the size of their equipment and shorten development lead-times for a variety of applications in markets that use short-range wireless and specified low-power radio bands. Commercial development is scheduled for the first half of 2009.

The ET-2000CB is a versatile transmission module for near-field communications that supports both short-range wireless and specified low-power radio. In a single package, this module integrates a crystal SAW resonator with an outstanding frequency-temperature coefficient enabled by Epson Toyocom's original technology, an oscillation circuit, and an amp circuit. The ET-2000CB eliminates the need for communications equipment manufacturers to design their own transmitter oscillation and amp circuits. It has built-in frequency regulation and output level regulation functions that enable the circuitry to be tuned to customers' systems. Since this relieves communications equipment manufacturers of the need to tune system circuitry themselves, they save valuable time in designing RF circuits that include difficult-to-tune oscillation circuits.

Among its functions, the module offers output in two different frequencies. Communications system malfunctions triggered by interference waves in adjacent frequencies can be avoided by selectively switching between oscillation frequencies. Epson Toyocom uses its high-density packaging technology to integrate these functions into a compact 5.0 x 3.2 mm package, thus reducing the number of external parts and downsizing the transmitter (Fig. 1).

Since 2002, Epson Toyocom has applied its original technology to supply products that feature superior frequency-temperature coefficients, with a second-order temperature coefficient less than half that of typical SAW resonators (ST cut). The company will continue to refine this technology and offer SAW devices to meet various market needs.

Main Features

--  A SAW resonator, oscillation circuitry and amp circuitry integrated
    into a single-package transmission module
--  Two switchable output frequencies
--  Frequency tuning and output level tuning functions
--  An output power selection mode setting to enable support for both
    short-range wireless and specified low-power radio standards
    (conforming to ARIB STD-T93)
--  A small footprint (5.0 x 3.2 mm)

Main Specifications
Item                        Specification        Note
Power supply voltage        2.0 to 3.6 V
Operating frequency         300 to 450 MHz
Carrier separation          1 to 3 MHz
Frequency deviation (FSK)   +/-40 kHz max.
Output power    Hi mode     -3 to +4 dBm         50 Omega terminal, +25 °C
                Low mode    -21 to -15 dBm       50 Omega terminal, +25 °C
Modulation                  FSK/ASK
External dimensions         5.0 x 3.2 x 1.38t
                            mm typ.

About Epson Toyocom Corporation

Epson Toyocom Corporation (Epson Toyocom) is the global leader in quartz devices. Epson Toyocom maintains its leadership position through technological innovation and expertise in three critical device categories -- timing, sensing, and optical devices; and through the development of combinations of products in each of these segments. The company and its more than 12,000 employees market its products to customers worldwide through sales and marketing affiliates around the world including Epson Electronics America, Inc. in El Segundo, California.

About Epson Electronics America, Inc.

The Timing Products Business Unit of Epson Electronics America, Inc. (EEA) is the North American sales, marketing, and engineering arm of Epson Toyocom Corporation (Epson Toyocom) and provides a wide array of crystals, oscillators, real-time clock modules, SAW products, optical devices and gyro sensors. Based in El Segundo, California, the EEA group has more than 40 sales representative offices nationwide and a growing network of exclusive distributors. For more information, please visit www.eea.epson.com and click on the Epson Toyocom center box. Both Epson Toyocom and EEA are part of the Seiko Epson Group, which consists of 109 companies around the world.

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