RF Components - SAW SF2237C 515 MHz SAW SAW Filter - RF - 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.

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RF Components
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SF2237C

515 MHz SAW Filter - RF

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� High Performance SAW Filter
� 5 x 5 mm Surface-mount Package
� Complies with Directive 2002/95/EC (RoHS)
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to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 06/14/10

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Specs
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Electrical Characteristics

Characteristic	Symbol	Minimum	Typical	Maximum	Units
Nominal Center Frequency	fC		515.0		MHz
Minimum Insertion Loss	ILMIN		-	5.0	dB
1 dB Bandwidth	BW1	27	30		MHz
Amplitude Ripple, fC �11.5 MHz			0.6	1.0	dBP-P
Group Delay Ripple, fC �11.5 MHz			30		nsP-P
Rejection referenced to ILMIN:
300 to 487.5 MHz		45	60		dB
540 to 650 MHz		45	50		dB
Frequency Temperature Drift			-93		ppm/�C