Programmable Receiver IC includes jam avoidance.
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Press Release Summary:
Featuring selectable IF bandwidth for 300-450 MHz operation, QwikRadio® MICRF218 ASK/OOK Receiver can accommodate 2 reference crystals with use of external switch. It includes fully integrated IF section with built-in image rejection. Wide IF bandwidth can be chosen for backward compatibility with older transmitters that are LC-based. Able to escape from jamming source and migrate to alternate frequency, device is suitable for garage door openers and tire pressure monitoring systems.
Original Press Release:
Micrel Rolls Out World's First Programmable Receiver with Jam Avoidance
MICRF218 RF Solution Escapes From Jamming Source, Goes To Alternate Frequency
SAN JOSE, Calif., Feb. 25 /-- Micrel Inc., (NASDAQ:MCRL), an industry leader in analog, high bandwidth and Ethernet IC solutions, today announced that it is launching the world's first programmable receiver featuring jam avoidance. The MICRF218, which is part of Micrel's QwikRadio(R) family, is targeted at garage door openers and tire pressure monitoring systems. It is the world's first integrated ASK/OOK receiver with selectable IF bandwidth for 300 to 450 MHz operation. The IC is currently available in volume with pricing starting at $1.71 for 10K quantities.
"The MICRF218 is unique for its ability to "escape" from a jamming source and migrate to an alternate frequency," stated John Lee, director of mixed- signal and RF products, Micrel. "This is a crucial feature due to recent homeland security measures deploying a new mobile radio system. This new radio system presents the possibility of jamming at the 390 MHz frequency, a frequency also commonly used by garage door remote controls. The MICRF218 receiver system can avoid jamming by switching to a quieter frequency."
The MICRF218 can accommodate two reference crystals with the use of an external switch. It features a fully integrated IF section with built-in image rejection. The IF section has dual IF bandwidths that are externally selectable. In addition, a wide IF bandwidth can be chosen for backward compatibility with older transmitters that are LC-based. Wide IF bandwidth allows the receiver to capture a signal that slightly deviates from the intended communication frequency, or one can select a narrow IF bandwidth that operates with a crystal-based transmitter to improve selectivity to increase communication distance. There is no sacrifice of performance with either option.
For tire pressure monitoring system applications, a -40 to +125 deg-C operating temperature range can cause significant frequency deviation in the transmitter. The MICRF218AYQS in wide IF bandwidth mode can accommodate transmitter signal drift due to temperature changes in the operating environment.
About Micrel, Inc.
Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: www.micrel.com/ .
Note: QwikRadio is a registered trademark of Micrel, Inc. Certain QwikRadio ICs were developed under a development agreement with AIT of Orlando, FL.
CONTACT: Julieanne DiBene, Marketing Communications, of Micrel Inc.,
+1-408-474-1276, Julie.DiBene@Micrel.com
Web site: www.micrel.com/
