RFM offers a full set of custom embedded wireless networking solutions like Zigbee wireless mesh sensor networks, RF modules, IC transceiver, IC transmitters and IC receivers. RFM, Inc. manufactures low power wireless and RF radio modules, wireless mesh nodes for distributed sensing on distributed sensor networks. Low Power radio, n../arrowband and short range devices, front end saw filters, active RFID, RFIC, coupled resonator filters, single silicon chips in the 70MHZ and 300-1000Mhz range.
The RF1211C is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter
designed to provide front-end selectivity in 315.0 MHz receivers. Receiver designs using this filter
include superhet with 10.7 MHz or 500 kHz IF, direct conversion and superregen. Typical
applications of these receivers are wireless remote-control and security devices (especially for
automotive keyless entry) operating in the USA under FCC Part 15, in Canada under RSS-210,
and in Italy
This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically
greater than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz
IF. RFM’s advanced SAW design and fabrication technology is utilized to achieve high
performance and very low loss with simple external impedance matching.
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Rev Date 03/21/08
