1. The center frequency, fC, is measured at the minimum IL point with the resonator in the 50Ω test system.
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. 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].
5. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance C0 is the measured static (nonmotional) capacitance between the two terminals. 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 C0.
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.
Absolute Maximum RatingsRatingValueUnitsCW RF Power Dissipation (See Typical Test Circuit)+0dBmDC Voltage Between Any Two Pins (Observe ESD Precautions)±30VDCCase Temperature-45 to +120ºC
Electrical CharacteristicsCharacteristicsSymNotesMinimumTypicalMaximumUnitsCenter Frequency (+25ºC) Absolute Frequency
Tolerance from 315.000MHzfc
2,3,4,5314.925315.075MHzΔfc±75KHzInsertion LossIL2,5,61.52.2dBQuality Factor Unloaded Q
50Ωloaded QQU
5,6,713.300QL2.000Temperature Stability Turnover Temperature
Turnover Frequency
Frequency Temperature CoefficientTO5,7,8102540ºCfOfcKHzFTC0.037ppm/ºC2Frequency Aging Absolute Value during the First YearIfAI1<=10ppm/yτDC Insulation Resistance between Any Two Pins51.0MΩRF Equivalent RLC Model Motional Resistance
Motional Inductance
Motional Capacitance
Pin 1 to Pin 2 Static CapacitanceRM
5,7,91929ΩLM127.677μHCM1.99943pFCO5,6,92.32.62.9pF Transducer Static CapacitanceCP5,6,7,92.3pFTest Fixture Shunt InductanceLTEST2,7100nHLid Symbolization (in Addition to Lot and/or Date CodeL315A