RF Components - SAW SF2228A 70 MHz SAW SAW Filter - IF - 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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SF2228A

70 MHz SAW Filter - IF

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� Precision IF SAW Filter
� Hermetic 13.3 x 6.5 mm Surface-mount Case
� Complies with Directive 2002/95/EC (RoHS)
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 05/14/10

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Specs
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Electrical Characteristics

Characteristic	Symbol	Minimum	Typical	Maximum	Units
Center Frequency	fC	69.8	70.0	70.2	MHz
1 dB Bandwidth	BW1	3.40	3.60		MHz
3 dB Bandwidth	BW3	4.00	4.45		MHz
40 dB Bandwidth	BW40		7.18	8.00	MHz
Insertion Loss	IL		8.0	9.5	dB
Amplitude Ripple, fC � 1.5 MHz			0.9	1.0	dBP-P
Group Delay Ripple, fC � 1.5 MHz			190	220	nsP-P
Relative Attenuation:					dB
10 to 64.5 MHz		40	45		dB
74 to 140 MHz		40	43		dB
Operating Temperature Range		-40		+80	�C
Frequency Temperature Coefficient			-94		ppm/�C