RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
E-mail: info@rfm.com
Page 1 of 2
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RF1319D-082504
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency @ 25C
Absolute Frequency
f
C
1, 2, 3
868.95
MHz
Insertion Loss
IL
1
2.2
4.0
dB
3 dB Bandwidth
BW
3
1, 3
500
650
900
kHz
Attenuation:
(relative to ILmin)
10 - 700 MHz
1, 3
50
55
dB
700 - 830 MHz
40
45
830 - 850 MHz
35
40
850 - 865 MHz
20
24
871 - 878 MHz
21
30
878 - 883 MHz
15
20
883 - 900 MHz
28
35
900 - 1000 MHz
40
45
Temperature
Freq. Temp. Coefficient
FTC
3, 4
0.032
ppm/C
2
Frequency Aging
Absolute Value during the First Year
|fA|
5
<10
ppm/yr
Impedance @ f
C
Input Z
IN
= R
IN
/C
IN
Z
IN
1
28.8
// 1.93pF
Output Z
OUT
= R
OUT
/C
OUT
Z
OUT
26.9
// 2.2pF
Lid Symbolization (in addition to Lot and/or Date Codes)
436 // YWWS
Standard Reel Quantity 7 Inch Reel
9
500 Pieces/Reel
Standard Reel Quantity 13 Inch Reel
3000 Pieces/Reel
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)
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.
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.
868.95 MHz
SAW Filter
RF1319D
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, f
c
. Note that insertion loss and band-
width are dependent on the impedance matching component values and quality.
2.
The frequency f
c
is defined as the midpoint between the 3dB frequencies.
3.
Where noted, specifications apply over the entire specified operating temperature range of -40 to 90C.
4.
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
].
5.
Frequency aging is the change in fc with time and is specified at +65C or less. Aging may exceed the specification for prolonged temperatures
above +65C. 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.
SM3838-8 Case
3.8 x 3.8
Pb
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