®
RF1336D
868.35 MHz
SAW Filter
•
•
•
•
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)
Pb
The RF1336D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to pro-
vide front-end selectivity in 868.35 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
advanced SAW design and fabrication technology is utilized to achieve high performance and very low loss
with simple external impedance matching.
SM3838-8 Case
3.8 x 3.8
Electrical Characteristics
Characteristic
Center Frequency @ 25°C
Insertion Loss
3 dB Bandwidth
10 - 700 MHz
700 - 830 MHz
830 - 850 MHz
Attenuation:
(relative to ILmin)
850 - 864.4 MHz
870.4 - 877.4 MHz
877.4 - 882.4 MHz
882.4 - 900 MHz
900 - 1000 MHz
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
Reel Size 7 Inch
Reel Size 13 Inch
FTC
|fA|
Z
IN
Z
OUT
3, 4
5
1
1, 3
Absolute Frequency
Sym
f
C
IL
BW
3
Notes
1, 2, 3
1, 3
1, 2, 3
500
50
40
35
20
21
15
28
40
Minimum
Typical
868.35
2.5
650
55
45
40
25
26
19
35
45
0.032
<±10
35.6Ω // 2.06pF
35.8Ω // 2.19pF
437 // YWWS
9
500 Pieces/Reel
3000 Pieces/Reel
ppm/°C
2
ppm/yr
dB
4.0
900
Maximum
Units
MHz
dB
kHz
Lid Symbolization (in addition to Lot and/or Date Codes)
Standard Reel Quantity
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, f
c
. Note that insertion loss and band-
width and passband shape 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 105°C.
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
5.
6.
7.
8.
9.
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.
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.
E-mail: info@rfm.com
http://www.rfm.com
RF1336D-031505
Page 1 of 2
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.
RFM [ RF MONOLITHICS, INC ]
