View RF1295C_1301186.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

(R)
RF1295C 451.35 MHz SAW Filter
* * * *
Ideal Front-End Filter for 451.35 MHz Wireless Receivers Low-Loss Coupled-Resonator Quartz Design Simple External Impedance Matching Pb Complies with Directive 2002/95/EC (RoHS)
The RF1295C is a low-loss, compact, and economical surface acoustic wave (SAW) filter designed to provide front-end selectivity in 451.35 MHz receivers. Recevier 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. 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).
SM5050-8 Case 5x5
Electrical Characteristics
Characteristic Center Frequency at 25C Insertion Loss 3 dB Bandwidth Passband Rejection at fc - 21.4 MHz (Image) at fc - 10.7 MHz (LO) Ultimate Temperature Operating Case Temperature Turnover Temperature Turnover Frequency Frequency Temperature Coefficent Frequency Aging External Impedance Absolute Value during the 1st Year Series Inductance Shunt Capacitance Shunt Capacitance Lid Symbolization (Y=year, WW=week, D=day of week) Standard Reel Quantity Reel Size 7 Inch Reel Size 13 Inch TC TO fO FTC |fA| L C1 C2 2 6 6 6 2, 6 -40 15 25 fnom 0.032 <10 27 5.6 8.2 482 // YWWS 500 Pieces/Reel 3000 Pieces/Reel 3 Nominal Frequency Sym fnom IL BW3 Notes 1, 3, 4, 5 3, 6 2, 3, 6 700 35 15 Minimum Typical 451.35 2.5 1000 45 30 80 +85 40 C C MHz ppm/C2 ppm/yr nH pF pF dB 5.0 Maximum Units MHz dB kHz
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 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 5. 6. 7. 8. 9. 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 RF1295C-071904 Page 1 of 2
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.
451.35 MHz
Absolute Maximum Ratings
Rating Input Power Level DC Voltage Storage Temperature Soldering Temperature
SAW Filter
Value 10 12 -40 to +85 (10 seconds / 5 cycles max.) 260 Units dBm VDC C C
Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Input Return Ground Case Ground Output Output Return Ground Case Ground
A 2 3 1
B 8
C
E 8 D7 6 5
7 6 5
1 2 3 G
4
4 F
Matching Circuit to 50 Case Dimensions
Dimension
7 6
Output
1 8 4 2 3
Input
5
A B C D E F G
Min 4.8 4.8 1.3 1.98 1.07 0.50 2.39
mm Nom 5.0 5.0 1.5 2.08 1.17 0.64 2.54
Max 5.2 5.2 1.7 2.18 1.27 0.70 2.69
Min 0.189 0.189 0.050 0.078 0.042 0.020 0.094
Inches Nom 0.197 0.197 0.060 0.046 0.025 0.100
Max 0.205 0.205 0.067 0.086 0.050 0.028 0.106
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 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 RF1295C-071904
Page 2 of 2

▲Up To Search▲

Price & Availability of RF1295C

	To Download RF1295C Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .