315.50 MHz SAW Filter • • • • Designed to Provide Front-end selectivity in 315.50 MHz Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Rugged, Hermetic, Low Profile TO-39 Package SF315M50 Absolute Maximum Rating (Ta=25°C) Parameter Rating Unit CW RF Power Dissipation P +10 dBm DC Voltage VDC Between Any Two Pins VDC ±30 V Operating Temperature Range TA -10 ~ +60 °C Storage Temperature Range Tstg -40 ~ +85 °C Electronic Characteristics Parameter Nominal Frequency (at 25°C) (Center frequency between 3dB point) Sym Minimum Typical Maximum Unit fC NS 315.50 NS MHz Insertion Loss IL - 3.0 4.5 dB 3dB Passband BW3 - 600 800 KHz ∆α - - ±1.0 dB at fC - 21.4 MHz (Image) - 40 50 - dB at fC - 10.7 MHz (LO) - 20 30 - dB Ultimate - - 60 - dB Operating Temperature Range TC -10 - +60 °C Turnover Temperature TO 25 - 55 °C fO - fC - MHz FTC - 0.032 - ppm/C Passband Ripple Rejection Temperature Stability Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year DC Insulation Resistance Between any Two Pins 2 |fA| - - 10 ppm/yr - 1.0 - - MΩ NS = Not Specified Notes: 1. The frequency fC is defined as the midpoint between the 3dB frequencies. 2. 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. 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]. 6. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. 7. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. 3. Unless noted otherwise, specifications apply over the entire specified operating temperature range. 8. 4. 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. 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. 9. For questions on technology, prices and delivery please contact our sales offices or email to [email protected]. Phone: +86 10 6301 4184 Fax: +86 10 6301 9167 © April 2004 by Vanlong Technology Co., Ltd. Email: [email protected] Web: http://www.vanlong.com SF315M50 315.50 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 Marking SF 315M50 Nom. (mm) 9.35 3.40 3.00 0.45 5.08 2.54 Tol. (mm) ±0.10 ±0.10 ±0.20 ±0.10 ±0.10 ±0.20 0.45 Test Circuit Ink Marking Color: Black or Blue C = 13 pF* Ls1 = Ls2 = 80 nH Typical Frequency Response Phone: +86 10 6301 4184 Fax: +86 10 6301 9167 © April 2004 by Vanlong Technology Co., Ltd. Email: [email protected] Web: http://www.vanlong.com SF315M50