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RF1336B 868.35 MHz SAW Filter
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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 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 (not included). Our new patent pending solder seal process utilizes a Faraday shield lid, which improves out of band rejection.
SM 8558-8Case
Electrical Characteristics
Characteristic Center Frequency @ 25C Insertion Loss 3 dB Bandwidth Rejection at fc - 21.4 MHz (Image) at fc - 10.7 MHz (LO) Ultimate Temperature 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) TC TO fO FTC |fA| L1 L2 L3 C1 5 1 1 RFM RF1336B 3, 4 -40 15 25 fc 0.032 <10 18 22 12 3.9 YYWWL 1 Absolute Frequency Tolerance from 868.35 MHz Sym fC fC IL BW3 Notes 1, 2 1 1, 2 500 40 15 5.0 700 50 30 80 +85 40 C C MHz ppm/C2 ppm/yr nH nH nH pF dB Minimum Typical 868.35 100 8.5 800 Maximum Units MHz kHz dB kHz
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 bandwidth 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 5. 6. 7. 8. be calculated from: f = fo [1 - FTC (To - Tc)2]. 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. 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.
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 (c)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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868.35 MHz
Absolute Maximum Ratings
Rating Incident RF Power DC Voltage between any 2 pins (Observe ESD Precautions) Case Temperature1
SAW Filter
Value +13 30 -40 to +85 (10 seconds / 5 cycles max.) 260 Units dBm VDC C C
Soldering Temperature
Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Ground
Case Design
B C D (X8)
4 5 3 3
4 E (X2) 5
Output Return Case Ground Output Ground Input Return Case Ground
TOP VIEW H BOTTOM VIEW F (X6) A6 2 2 6 P (X4) 7 8 1 1 8 7
Case Dimensions Dimension A B C D E F H P Min 8.26 5.59 mm Nom 8.51 5.84 1.70 0.79 1.14 1.98 0.51 2.54 Max 8.76 6.10 2.00 Min 0.325 0.220 Inches Nom 0.335 0.230 0.067 0.031 0.045 0.078 0.020 0.100 Max 0.345 0.240 0.079
1
2
3 1
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 (c)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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