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RF1415D 315.0 MHz SAW Filter
* * * *
Ideal Front-End Filter for Domestic Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb
The RF1415D 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 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
Typical 315.00 2.10 950 44 34 32 17 12 35 37 47 ppm/ 0.032 C2 ppm/yr dB Maximum 315.170 3.50 1200 Units MHz dB kHz
Electrical Characteristics
Characteristic Center Frequency at 25C Insertion Loss 3 dB Bandwidth Rejection Attenuation: (relative to ILmin) 10 - 285 MHz 285 - 305 MHz 305 - 309 MHz 309 - 313.9 MHz 316 - 327 MHz 327 - 335 MHz 335 - 450 MHz 450 - 1000 MHz Temperature Frequency Aging Impedance @ fc Freq. Temp. Coefficient Absolute Value during the First Year Input ZIN=RINllCIN Output ZOUT=ROUTllCOUT Lid Symbolization (Y=year WW=week S=shift) Standard Reel Quantity Reel Size 7 Inch Reel Size 13 Inch FTC lfAl ZIN ZOUT 5 1 1, 3 Absolute Frequency Sym fc ILMIN BW3 Notes 1, 2, 3 1, 3 1, 3 800 42 32 30 15 10 33 35 45 Minimum 314.840
10 TBD TBD 538 // YWWS 500 Pieces/Reel 3000 Pieces/Reel
9
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 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 -40C to +105C. 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 +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. 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.
E-mail: info@rfm.com http://www.rfm.com RF1415D-051105 Page 1 of 3
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.
315.0 MHz
SAW Filter
29 Sep 2004 12:34:38
CH1 S11 1 : 49 . 500 315 . 000 000
1 U FS 6 . 1836 MHz
3 . 1243
nH
CH3 S22 1 : 51 . 910 315 . 000 000
1 U FS 5 . 9688 MHz
3 . 0157
nH
1 PRm
1
Cor
Cor
Hld CENTR CH2 315 . 000 S21 MHz SPAN 2 dB/ 2 . 000 MHz
Hld CENTR 315 . 000 1 : 0 . 0000 MHz dB SPAN 0 . 000 2 . 000 000 MHz
LOG
REF -2.5 dB
MHz
1 BW : 2 cent 3 PRm 1_ loss 4 :
CH2 Max
Markers REF=1 MHz MHz
Cor
. 969411
314 . 950756
Q: 324 . 89 : -2 . 1978 dB
Hld
START
314 . 000
000
MHz
STOP
316 . 000
000
MHz
29 Sep 2004 12:32:59
CH2 S21 LOG 10 dB/ REF -2 dB
PRm
Cor
CENTER
315 . 000
000
MHz
SPAN
100 . 000
000
MHz
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 RF1415D-051105
Page 2 of 3
315.0 MHz
Absolute Maximum Ratings
Rating Input Power Level DC Voltage Storage Temperature Operable Temperature Range Soldering Temperature
SAW Filter
Value 10 12 -40 to +125 -40 to +125 (10 seconds / 5 cycles max.) 260
Units dBm VDC C C C
Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Input Ground Ground Case Ground Output Output Ground Ground Case Ground
4 D 4 F A 1 2 3 7 6 5 B 8 C E 8 H7 6 5
1 2 3 G
Matching Circuit to 50
Case Dimensions
7 6
Output
1 8 4 2 3
Input
Dimension A B C D E F G H
5
Optional Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Ground Input Input Ground Case Ground Output Ground Output Output Ground Case Ground
5
Output
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
Matching Circuit to 50
7 6 8 4
1 2 3
Input
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 RF1415D-051105
Page 3 of 3

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