RF1171 RFM | Alldatasheet
Document overview
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Technical content
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 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. RF1171-082201
Electrical Characteristics
1, 2 417.920 418.080 MHz Tolerance from 418.0 MHz ∆fc ±80 dB Insertion Loss IL 3.0 5.5 dB 3 dB Bandwidth BW3 1, 2 500 600 800 kHz Rejection at fC - 21.4 MHz (Image) dB at fC - 10.7 MHz (LO) Ultimate Temperature Operating Case Temp. TC 3, 4 -35 +85 Turnover Temperature TO Turnover Frequency fO fC MHz Freq. Temp. Coefficient FTC 0.032 ppm/°C2 Frequency Aging Absolute Value during the First Year |fA| ≤10 ppm/yr External Impedance Series Inductance L 6 Turns of 0.3 mm Insulated Copper, 1.9 mm ID nH Shunt Capacitance C pF Lid Symbolization (in addition to Lot and/or Date Codes) RFM RF1171 TO39-3 Case Ideal Front-End Filter for Wireless Receiver in the UK and USA Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Rugged TO39 Hermetic Package Complies with Directive 2002/95/EC (RoHS) The RF1171 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 418.0 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz direct conversion and superregen. Typical applications of these receivers are wireless remote- control and security devices operating in the USA under FCC Part 15. 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). Quartz construction provides excellent frequency stabil- ity over a wide temperature range.
418.0 MHz
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: 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, bandwidth, and passband shape are dependent on the impedance matching component values and quality. The frequency fc is defined as the midpoint between the 3dB frequencies. Unless noted otherwise, specifications apply over the entire specified operating temperature range. 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]. 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. Pb
418.0 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 E-mail: info@rfm.com Page 2 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. RF1171-082201 Absolute Maximum Ratings Typical Filter Response Typical filter responses are shown below. The actual response is depen- dent on external impedance matching and circuit layout. Illustrated fre- quencies and minimum rejection for LO and IMAGE are shown only for superhet receivers with 10.7 MHz IF. Electrical Connections Typical Demonstration Circuit Case Design Rating Value Units Incident RF Power +13 dBm DC Voltage Between Any Two Pins (Observe ESD Precautions) ±30 VDC Case Temperature5 -45 to +85 LO -10 -20 -30 -40 -50 -60 -70 -80
5 MHz/div
L C C L From 50 Network Analyzer Ω To 50 Ω Network Analyzer Dimensions Millimeters Inches Min Max Min Max A 9.40 0.370 B 3.18 0.125 C 2.50 3.50 0.098 0.138 D
0.46 Nominal
0.018 Nominal
E
5.08 Nominal
0.200 Nominal
F
2.54 Nominal
0.100 Nominal
G H 1.02 0.040 J 1.40 0.055 dB
150 KHz/div
o B 45° J (2 places) D (3 places) H G E F C A