RF1211D ® • • • • Ideal Front-End Filter for Domestic Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Pb Complies with Directive 2002/95/EC (RoHS) The RF1211D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 315.0 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 (especially for automotive keyless entry) operating in the USA under FCC Part 15, in Canada under RSS-210, and in Italy 315.0 MHz SAW Filter 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 Sym Notes Minimum Typical Maximum Units 314.85 315.00 315.15 MHz 1.6 2.5 dB 800 kHz fc 1, 2, 3 Insertion Loss ILMIN 1, 3 3 dB Bandwidth BW3 1, 3 Center Frequency at 25°C Absolute Frequency Rejection Attenuation: (relative to ILmin) 500 600 10 - 295 MHz 46 51 295 - 305 MHz 41 46 305 - 310 MHz 27 30 310 - 313 MHz 17 20 313 - 314 MHz 7 10 20 24 320 - 325 MHz 15 18 325 - 335 MHz 43 48 335 - 600 MHz 55 60 600 - 1000 MHz 55 60 1, 3 316 - 320 MHz Temperature Freq. Temp. Coefficient Absolute Value during the First Year lfAl Impedance @ fc Input ZIN=RINllCIN ZIN Output ZOUT=ROUTllCOUT ppm/ FTC Frequency Aging ZOUT 5 Reel Size 7 Inch Reel Size 13 Inch 0.032 °C2 ≤10 ppm/yr 5.0Ω // 2.2pf 1 Lid Symbolization (Y=year WW=week S=shift) Standard Reel Quantity dB 9.3Ω // 1.7pf 476 // YWWS 9 500 Pieces/Reel 3000 Pieces/Reel 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 bandwidth and passband shape 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 of -40°C to +90°C. 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. 9. 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. 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 Per ANSI / EIA 481. 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: [email protected] http://www.rfm.com RF1211D-020205 Page 1 of 3 315.0 MHz SAW Filter Absolute Maximum Ratings Rating Input Power Level DC Voltage Value Units 10 dBm 12 VDC Storage Temperature -40 to +125 °C Operable Temperature Range -40 to +125 °C 260 °C Soldering Temperature (10 seconds / 5 cycles max.) Electrical Connections Pin Connection 1 Input 2 Input Ground 3 Ground 4 Case Ground 5 Output 6 Output Ground 7 Ground 8 Case Ground A E C B 8 8 1 7 H 7 1 2 6 6 2 3 5 5 3 G 4 4 F D Matching Circuit to 50Ω Ω Case Dimensions 82nH 1 7 6 91nH 5 Output Input 8 4 2 Dimension 10pf A B C D E F G H 3 8.2pf Optional Min 3.6 3.6 1.00 0.95 0.90 0.50 2.39 1.40 mm Nom 3.8 3.8 1.20 1.10 1.0 0.6 2.54 1.75 Max 4.0 4.0 1.40 1.25 1.10 0.70 2.69 2.05 Min 0.14 0.14 0.04 0.037 0.035 0.020 0.090 0.055 Inches Nom 0.15 0.15 0.05 0.043 0.04 0.024 0.100 0.069 Max 0.16 0.16 0.055 0.05 0.043 0.028 0.110 0.080 Electrical Connections Pin Connection 1 Input Ground 2 Input 3 Ground 4 Case Ground 5 Output Ground 6 Output 7 Ground 8 Case Ground Matching Circuit to 50Ω Ω 7 1 91nH Output 82nH 6 8.2pf 5 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. 8 4 Input 2 10pf 3 E-mail: [email protected] http://www.rfm.com RF1211D-020205 Page 2 of 3 315.0 MHz SAW Filter 5 Mar 2004 16:44:47 CH1 S21 LOG 1 dB/ REF -3 dB 1 : 0 . 0000 dB 0 . 000 000 MHz * CH1 Markers REF=1 Max . 655378 MHz BW : 1 cent : 314 . 971391 MHz Q: 480 . 60 2 1_ loss PRm : -1 . 6026 dB Cor 3 4 Hld CH1 CH2 CENTER S21 LOG 315 . 000 000 MHz 10 dB/ SPAN REF 0 dB 1 : 0 . 0000 2 . 000 dB 000 0 . 000 MHz 000 MHz CH2 Markers REF=1 2 : -44 . 466 dB -10 . 7000 MHz 1 MHz 3 : -52 . 589 dB -21 . 4000 MHz PRm 2 Hld 3 CH2 CENTER 315 . 000 000 MHz SPAN 50 . 000 000 MHz 5 Mar 2004 16:47:09 CH1 S11 1 U FS 1 : 42 . 932 -8 . 3555 60 . 470 pF 315 . 000 000 MHz 63 . 654 pF 315 . 000 000 MHz 1 PRm Cor Hld CH2 S22 1 U FS 1 : 51 . 520 -7 . 9375 1 PRm Cor Hld CENTER 315 . 000 000 MHz 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. SPAN 2 . 000 000 MHz E-mail: [email protected] http://www.rfm.com RF1211D-020205 Page 3 of 3