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RF3319E
?
Ideal Front-End Filter for European Wireless Receivers
?
?
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
868.95 MHz
?
Complies with Directive 2002/95/EC (RoHS)
Pb
SAW Filter
The RF3319E 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 superheterodyne
receivers with 10.7 MHz or lower intermediate frequencies, 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 regulations.
SM3030-6 Case
3.0 x 3.0
Electrical Characteristics
Characteristic
Center Frequency @ 25°C
Insertion Loss
3 dB Bandwidth
Passband Ripple, Fc ±300 kHz
Sym
f C
IL
BW 3
Notes
1, 2, 3
1
1, 3
1, 3
Minimum
868.80
800
Typical
868.95
2.4
900
1.2
Maximum
869.10
4.0
1000
2.0
Units
MHz
dB
kHz
dB P-P
10 - 859 MHz
859 - 864 MHz
33
32
35
34
Attenuation:
(relative to IL MIN )
864 - 867.2 MHz
870.6 - 872 MHz
1, 3
12
19
14
21
dB
872 - 895 MHz
895 - 1030 MHz
15
38
17
40
Temperature
Frequency Aging
Impedance @ f C
Freq. Temp. Coefficient
Absolute Value during the First Year
Input Z IN = R IN || C IN
Output Z OUT = R OUT || C OUT
FTC
|fA|
Z IN
Z OUT
3, 4
5
1
0.032
<±10
84.13 ? || 6.0 pF
180.84 ? || 4.0 pF
ppm/
°C 2
ppm/yr
Lid Symbolization (in addition to Lot and/or Date Codes)
695 // YWWS
Standard Reel Quantity
Standard Reel Quantity
7 Inch Reel
13 Inch Reel
9
500 Pieces/Reel
3000 Pieces/Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
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, f c . Note that insertion loss and band-
width are dependent on the impedance matching component values and quality.
The frequency f c is defined as the midpoint between the 3 dB frequencies.
Where noted, specifications apply over the entire specified operating temperature range of -40 to 90 °C.
The turnover temperature, T O , is the temperature of maximum (or turnover) frequency, f o . The nominal frequency at any case temperature, T c , may
be calculated from: f = f o [1 - FTC (T o - T c ) 2 ].
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.
The design, manufacturing process, and specifications of this device are subject to change without notice.
One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
Tape and Reel Standard for ANSI / EIA 481.
www.RFM.com E-mail: info@rfm.com
?2009 by RF Monolithics, Inc.
Page 1 of 3
RF3319E - 9/14/09
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