Wireless Communications within the electronics industry

PRODUCT INNOVATIONS

Epson Toyocom - Transmission module

Transmission module with switchable output frequencies for near-field communications

Epson Toyocom Corporation, the leader in crystal devices, has developed a new transmission module called the ET-2000CB that offers two switchable output frequencies and a small footprint of just 5.0 mm x 3.2 mm. The small size and frequency options will help communications equipment manufacturers to reduce the size of their equipment and shorten their 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 fiscal 2009.

The ET-2000CB is a versatile transmission module for near-field communications that
supports both short-range wireless and specified low power radio. This module integrates in a single package a crystal SAW resonator with an outstanding frequency-temperature coefficient enabled by Epson Toyocom's original technology, an oscillation circuit, and an amp circuit.

By using this module, communications equipment manufacturers can eliminate the need to design their own transmitter oscillation circuits and amp circuits. The ET-2000CB 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 mm x 3.2 mm module, thus reducing the number of external parts while also contributing to transmitter downsizing.