RF Interface Front End Operates To 100 MHz 800 To 2400 MHz

Oct. 22, 2009

TO MEET THE NEEDS OF APPLICATIONS like remote medical reading and pet identification, a new integrated circuit (IC) spans 50 Hz to 100 MHz. The RF interface front end offers a maximum receive data rate of 120 kb/s and a maximum transmit data rate of 5 kb/s. The IC operates from 2.4 to 4 V with a maximum 1.0 A supply current. Its output current is typically 50 A. The front end requires 36 W minimum input power with a maximum of 300 W. For low-power processors under 50 A, the device does not require a battery. A received signal strength detector keeps the logic off until a sufficiently strong signal is received. In fact, the PDO output provides a trigger only when the received signal strength indicator (RSSI) is activated. The IC boasts a charge pump and ASK/PSK modulation for self-powered or passive backscatter applications.

Mixed Signal Integration, 2157F O'Toole Ave., San Jose, CA 95131; (408) 434-6305, FAX: (408) 434-6417, Internet: www.mix-sig.com.

About the Author

Nancy Friedrich | Editor-in-Chief

Nancy Friedrich began her career in technical publishing in 1998. After a stint with sister publication Electronic Design as Chief Copy Editor, Nancy worked as Managing Editor of Embedded Systems Development. She then became a Technology Editor at Wireless Systems Design, an offshoot of Microwaves & RF. Nancy has called the microwave space “home” since 2005.