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PDF RF1172D Data sheet ( Hoja de datos )
| Número de pieza | RF1172D | |
| Descripción | SAW Filter | |
| Fabricantes | RMF | |
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RF1172D
• 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
Pb
The RF1172D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter
designed to provide front-end selectivity in 433.92 MHz receivers. Receiver designs using this
filter include superheterodynes with 10.7 MHz or 500 kHz IF, plus direct conversion and
superregenerative receivers. Typical applications of these receivers are wireless remote-control
and security devices operating in Europe under ETSI I-ETS 300 220-1.
This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically
greater than 40 dB, of the LO and image spurious responses in superheterodyne receivers with
10.7 MHz IF’s. RFM’s advanced SAW design and fabrication technology is utilized to achieve high
performance and very low loss with simple external impedance matching.
Electrical Characteristics
433.92 MHz
SAW Filter
SM3838-8 Case
3.8 x 3.8
Characteristic
Sym Notes Minimum Typical Maximum Units
Center Frequency at 25°C Absolute Frequency
Insertion Loss (433.760 - 434.080)
3 dB Bandwidth
Rejection Attenuation: (relative to ILmin)
10 - 414 MHz
414 - 424 MHz
424 - 431 MHz
431 - 432 MHz
432 - 433 MHz
434.92 - 442 MHz
442 - 550 MHz
550 - 1000 MHz
Temperature
Freq. Temp. Coefficient
Frequency Aging
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
fc
ILMIN
BW3
FTC
|fA|
ZIN
ZOUT
1, 2, 3
1, 3
1, 3
1, 3
5
1
9
433.92
1.6
2.5
500 600 800
50 55
45 50
30 34
18 22
12 17
16 19
40 45
50 55
0.032
≤10
1428 Ω || 111.5 pF
961 Ω || 111.8 pF
477 || YWWS
500 Pieces/Reel
3000 Pieces/Reel
MHz
dB
kHz
dB
ppm/°C2
ppm/yr
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
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 band-
width 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 +105°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: [email protected]
©2009 by RF Monolithics, Inc.
Page 1 of 3
RF1172D - 3/10/09
Free Datasheet http://www.datasheetlist.com/
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