RF1336B Ver la hoja de datos (PDF) - RF Monolithics, Inc
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RF1336B Datasheet PDF : 2 Pages
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®
• Ideal Front-End Filter for European Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Surface-Mount Ceramic Case with 52 mm2 Footprint
• Complies with Directive 2002/95/EC (RoHS)
The RF1336B is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide 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 wireless remote-control and security devices operat-
ing 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 (not
included). Our new patent pending solder seal process utilizes a Faraday shield lid, which improves out of band rejection.
RF1336B
868.35 MHz
SAW Filter
SM 8558-8Case
Electrical Characteristics
Characteristic
Center Frequency @ 25°C Absolute Frequency
Tolerance from 868.35 MHz
Insertion Loss
3 dB Bandwidth
Rejection
Temperature
at fc - 21.4 MHz (Image)
at fc - 10.7 MHz (LO)
Ultimate
Operating Case Temp.
Turnover Temperature
Turnover Frequency
Freq. Temp. Coefficient
Frequency Aging
External Impedance
Absolute Value during the First Year
Input Series Inductance
Input Shunt Inductance
Output Series Inductance
Output Shunt Capacitance
Lid Symbolization (in addition to Lot and/or Date Codes)
Sym
fC
∆fC
IL
BW3
TC
TO
fO
FTC
|fA|
L1
L2
L3
C1
Notes
1, 2
1
1, 2
1
3, 4
5
1
1
Minimum
Typical
Maximum
868.35
±100
5.0
8.5
500
700
800
40
50
15
30
80
-40
+85
15
25
40
fc
0.032
<±10
18
22
12
3.9
RFM RF1336B YYWWL
Units
MHz
kHz
dB
kHz
dB
°C
°C
MHz
ppm/°C2
ppm/yr
nH
nH
nH
pF
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 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.
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.
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.
E-mail: info@rfm.com
http://www.rfm.com
RF1336B-041902
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