SF418

418.00 MHz SAW Filter • • • • Designed to Provide Front-end selectivity in 418.00 MHz Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Rugged, Hermetic, Low Profile TO-39 Package SF418 Absolute Maximum Rating (Ta=25°C) Parameter CW RF Power Dissipation DC Voltage VDC Between Any Two Pins Operating Temperature Range Storage Temperature Range P VDC Rating +10 ±30 -10 ~ +60 -40 ~ +85 Electronic Characteristics Unit dBm V °C °C TA Tstg Parameter Nominal Frequency (at 25°C) (Center frequency between 3dB point) Insertion Loss 3dB Passband Passband Ripple at fC - 21.4 MHz (Image) Rejection at fC - 10.7 MHz (LO) Ultimate Operating Temperature Range Temperature Stability Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year Sym fC Minimum NS 40 20 -10 25 1.0 Typical 418.00 3.5 600 50 30 60 fC 0.032 - Maximum NS 5.0 800 ±1.0 +60 55 10 - Unit MHz dB KHz dB dB dB dB °C °C MHz ppm/C 2 IL BW 3 ∆α TC TO fO FTC |fA| - ppm/yr MΩ DC Insulation Resistance Between any Two Pins NS = Not Specified Notes: 1. The frequency fC is defined as the midpoint between the 3dB frequencies. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture that is connected to a 50Ω 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. Unless noted otherwise, specifications apply over the entire specified operating temperature range. 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 in subsequent years. 5. Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f0. The nominal frequency at any case temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC)2]. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. For questions on technology, prices and delivery please contact our sales offices or email to sales@vanlong.com. 2. 6. 7. 3. 8. 4. 9. Phone: +86 10 6301 4184 Fax: +86 10 6301 9167 Email: sales@vanlong.com Web: http://www.vanlong.com SF418 © April 2004 by Vanlong Technology Co., Ltd. 418.00 MHz SAW Filter Package Dimensions (TO-39) Electrical Connections Terminals 1 2 3 Connection Input/Output Output/Input Case Ground Package Dimensions Dimensions A B C D E F G Nom. (mm) 9.35 3.40 3.00 0.45 5.08 2.54 0.45 Tol. (mm) ±0.10 ±0.10 ±0.20 ±0.10 ±0.10 ±0.20 Marking Test Circuit SF418 418.00 Ink Marking Color: Black or Blue C = 13 pF* Ls1 = Ls2 = 5 tunes of insulated copper, 3.0mm ID Typical Frequency Response Phone: +86 10 6301 4184 Fax: +86 10 6301 9167 Email: sales@vanlong.com Web: http://www.vanlong.com SF418 © April 2004 by Vanlong Technology Co., Ltd.