• Ideal Front-End Filter for European Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Complies with Directive 2002/95/EC (RoHS)10
The RF3391D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 433.42 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 operating in Europe under ETSI I-ETS 300 220.
Input Power Level
Storage Temperature Range
Operating Temperature Range
Soldering Temperature (10 seconds / 5 cycles maximum)
-40 to +125
-40 to +125
3.8 x 3.8
Center Frequency at 25°C
Passband Ripple (Relative to ILMIN) fc ±200 kHz
3 dB Bandwidth
Rejection relative to ILMIN
10 - 415 MHz
415 - 425 MHz
425 - 431 MHz
435 - 440 MHz
445 - 450 MHz
450 - 1000 MHz
Freq. Temp. Coefficient
Absolute Value during the First Year
Impedance @ fc
Input ZIN = RINllCIN
Output ZOUT = ROUTllCOUT
Lid Symbolization (Y=year WW=week S=shift)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
1, 2, 3
Minimum Typical Maximum Units
2.8 3.5 dB
1.2 1.8 dB
500 600 800 kHz
137.18 Ω ||7.58 pF
126.97 Ω || 7.87 pF
739 // YWWS
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
1. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 Ω test system with VSWR ≤
1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fc. Note that insertion loss and bandwidth and passband
shape are dependent on the impedance matching component values and quality.
2. The frequency fc is defined as the midpoint between the 3dB frequencies.
3. Where noted specifications apply over the entire specified operating temperature range of -40°C to +90°C.
4. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may be
calculated from: f = fo [1 - FTC (To - Tc)2].
5. Frequency aging is the change in fc with time and is specified at +65°C or less. Aging may exceed the specification for prolonged temperatures above +65°C.
Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years.
6. The design, manufacturing process, and specifications of this device are subject to change.
7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
8. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
9. Tape and Reel Standard Per ANSI / EIA 481.
10. This product complies with Directive 2002/95/EC of the European Parlament and of the Council of 27 January 2003 on the restriction of the use of certain
hazadous substances in electrical and electronic equipment.
www.RFM.com E-mail: firstname.lastname@example.org
©2008-2010 by RF Monolithics, Inc.
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RF3391D - 12/14/10
Datasheet pdf - http://www.DataSheet4U.co.kr/