ICST Integrated Circuit Systems (MM)

Integrated Circuit Systems, Inc. (ICS)(NASDAQ:ICST), a world leader in silicon timing solutions for the consumer, networking, and industrial electronics industries, today introduced a new family of surface acoustic wave (SAW) products designed for use in global positioning system (GPS) equipment. The family includes radio-frequency (RF) and intermediate-frequency (IF) bandpass filters for GPS receivers, as well as a SAW delay line for system applications, enabling a complete GPS solution. "SAW technology offers the highest performance in a miniature size compared with ceramic or LC filters," said Steve Skiest, marketing manager for ICS SAW products. "ICS offers a complete filtering solution by offering both front-end and IF-stage devices. And, by offering our SAW filters in miniaturized packaging, we enable advanced performance in the smallest form-factor GPS applications." These ICS SAW devices are lead-free and RoHS-compliant, offering designers a highly reliable, consistent, space-efficient, and cost-effective method of filtering RF signals in GPS receivers, modules, and antennas. In addition to standard products, ICS also offers custom-designed filters to meet unique system requirements. Front-End RF Bandpass Filters The two new RF filters, the SF1575BA02505S and SF157BA02056S, are centered at 1575.42 MHz and offer low loss, excellent rejection, and miniature 3.0 x 3.0-mm or 2.4 x 2.0-mm surface-mount packaging to meet the needs of small form-factor GPS applications. The SF1575BA02505S has a minimum bandwidth of 2.4 MHz over a temperature range of -40 to +85 degrees Centigrade. It also offers a very low typical insertion loss of 1.3 dB. IF Filter Ideal for IF-stage filtering, the SF0185BA02302S has a center frequency of 185.76 MHz with a minimum 3-dB bandwidth of 4.48 MHz. This part offers a tight rejection of more than 42 dB at 176.22 MHz. Additional features include low-amplitude ripple of less than 1 dB and low-phase ripple of less than 2 degrees, peak-to-peak. The SF0185BA02302S IF filter is offered in a 9.1 x 7.1-mm surface-mount package. Delay Line The SF1575DL03104S is designed as a 1575-MHz delay line for GPS, satellite, and other RF communications system applications. The delay line offers a nominal delay of 230 ns with a typical insertion loss of 19 dB over 1565 to 1585 MHz. This part is available in a miniature 5.0 x 5.0 mm surface-mount package. Pricing and Availability All components for the GPS RF filtering solution are available now. Pricing starts at less than $2.00 for the RF SAW filters in 1,000-piece quantities. For more information on the GPS SAWs or any ICS SAW product, please contact the ICS SAW product division at 800-544-0052 or visit the web site at www.icst.com. About ICS Integrated Circuit Systems, Inc. is a world leader in the design, development, and marketing of silicon timing devices for communications, networking, computing, and digital multimedia applications. The company is headquartered in Norristown, PA, with key facilities in San Jose, CA; Tempe, AZ; Worcester, MA; and Singapore. For more information, visit the company's web site at: http://www.icst.com. (C) Copyright 2005 Integrated Circuit Systems, Inc. All rights reserved.