868.75 MHz One Port SAW Resonator • Ideal for 868.75 MHz Transmitters Very Low Insertion Loss Quartz Stability Ultra Miniature Ceramic SMD Package (QCC8C) • • • SR5907 Absolute Maximum Rating (Ta=25°C) Parameter Rating Unit 0 dBm ±30 V TA -10 ~ +60 °C Tstg -40 ~ +85 °C CW RF Power Dissipation P DC Voltage VDC Operating Temperature Range Storage Temperature Range Electronic Characteristics Parameter Sym Minimum Typical Maximum Unit fc NS 868.75 NS MHz Tolerance from 868.75 MHz ∆fc - - ± 150 KHz IL - 1.8 2.4 dB Quality Factor Unloaded Q-Value Qu - 8,550 - - 50Ω Loaded Q-Value QL - 1,600 - - Temperature Stability Turnover Temperature To 25 - 55 °C Turnover Frequency fo - fc - KHz Frequency Temperature Coefficient FTC - 0.032 - ppm/°C Absolute Value during the First Year |fA| - - 10 ppm/yr - 1.0 - - MΩ Frequency (25°C) Nominal Frequency Insertion Loss Frequency Aging DC Insulation Resistance Between any Two Pins RF Equivalent RLC Model 2 Motional Resistance RM - 23.0 32.0 Ω Motional Inductance LM - 33.0720 - µH Motional Capacitance CM - 0.9314 - fF Shunt Static Capacitance Co 2.00 2.25 2.50 pF NS = Not Specified Note: 1. The frequency fc is the frequency of minimum IL with the resonator in the specified test fixture in a 50Ω test system with VSWR ≤ 1.2:1. 2. Unless noted otherwise, case temperature TC = +25°C±2°C. 3. 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. 4. 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 = fo [1 - FTC (TO - TC)2]. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance CO is the measured static (nonmotional) capacitance between input terminal and ground or output terminal and ground. Phone: +86 10 6301 4184 © 2004 by Vanlong Technology Co., Ltd. Fax: +86 10 6301 9167 The measurement includes case parasitic capacitance. 6. Derived mathematically from one or more of the following directly measured parameters: fc, IL, 3 dB bandwidth, fC versus TC, and Co. 7. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. 8. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. 9. 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. 10. For questions on technology, prices and delivery, please contact our sales offices or e-mail to [email protected]. Email: [email protected] Web: http://www.vanlong.com SR5907 868.75 MHz One Port SAW Resonator Package Dimensions (QCC8C) Electrical Connections Terminals 2 6 4,8 1,3,5,7 Connection Terminal 1 Terminal 2 Case-Ground NC Package Dimensions Dimensions A B C D Marking Nom (mm) 2.08 0.60 1.27 2.54 Dimensions E F G H Nom (mm) 1.20 1.35 5.00 5.00 Equivalent LC Model and Test Circuit 1. R5907 - Part Code R5907 2. Frequency in MHz 868.75 3. Date Code: YWW From 50Ω Source To 50Ω load Y : Last digit of year WW : Week No. Equivalent LC Model Test Circuit Typical Application Circuit Low Power Transmitter Application Local Oscillator Application Typical Frequency Response Temperature Characteristics (f - fo)/fo (ppm) fc = fo, Tc = To ∆T= Tc –To (°C) The curve shown above accounts for resonator contribution only and does not include oscillator temperature characteristics. Phone: +86 10 6301 4184 © 2004 by Vanlong Technology Co., Ltd. Fax: +86 10 6301 9167 Email: [email protected] Web: http://www.vanlong.com SR5907