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RF1319D Schematic ( PDF Datasheet ) - RMF

Teilenummer RF1319D
Beschreibung SAW Filter
Hersteller RMF
Logo RMF Logo 




Gesamt 2 Seiten
RF1319D Datasheet, Funktion
® RF1319D
• Ideal Front-End Filter for European Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
The RF1319D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to pro-
vide front-end selectivity in 868.95 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 wire-
less remote-control and security devices operating in Europe under ETSI I-ETS 300 220, in Germany under
FTZ 17 TR 2100, in the United Kingdom under DTI MPT 1340 (for automotive only), in France under PTT
Specifications ST/PAA/TPA/AGH/1542, and in Scandinavia.
868.95 MHz
SAW Filter
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 ad-
vanced SAW design and fabrication technology is utilized to achieve high performance and very low loss with
simple external impedance matching (not included). Our new patent pending solder seal process utilizes a
Faraday shield lid, which improves out of band rejection.
Electrical Characteristics
SM3838-8 Case
3.8 x 3.8
Characteristic
Center Frequency @ 25°C Absolute Frequency
Insertion Loss
3 dB Bandwidth
10 - 700 MHz
700 - 830 MHz
830 - 850 MHz
Attenuation:
(relative to ILmin)
850 - 865 MHz
871 - 878 MHz
878 - 883 MHz
883 - 900 MHz
900 - 1000 MHz
Temperature
Freq. Temp. Coefficient
Frequency Aging
Absolute Value during the First Year
Impedance @ fC
Input ZIN = RIN/CIN
Output ZOUT = ROUT/COUT
Lid Symbolization (in addition to Lot and/or Date Codes)
Standard Reel Quantity
Standard Reel Quantity
7 Inch Reel
13 Inch Reel
Sym
fC
IL
BW3
FTC
|fA|
ZIN
ZOUT
Notes
1, 2, 3
1
1, 3
1, 3
3, 4
5
1
9
Minimum
Typical Maximum
868.95
2.2 4.0
500 650 900
50 55
40 45
35 40
20 24
21 30
15 20
28 35
40 45
0.032
<±10
28.8 // 1.93pF
26.9 // 2.2pF
436 // YWWS
500 Pieces/Reel
3000 Pieces/Reel
Units
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 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 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 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 without notice.
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 for ANSI / EIA 481.
RF Monolithics, Inc. Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
http://www.rfm.com
RF1319D-082504
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