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SR479

Vanlong Technology
Part Number SR479
Manufacturer Vanlong Technology
Description 479.50 MHz One-Port SAW Resonator
Published Oct 19, 2010
Detailed Description DataSheet.in 479.50 MHz One-Port SAW Resonator • • • • Ideal for 479.50 MHz Transmitters Very Low Insertion Loss Quart...
Datasheet PDF File SR479 PDF File

SR479
SR479

Overview
DataSheet.
in 479.
50 MHz One-Port SAW Resonator • • • • Ideal for 479.
50 MHz Transmitters Very Low Insertion Loss Quartz Stability Rugged, Hermetic, Low Profile TO-39 Package SR479 Absolute Maximum Rating (Ta=25°C) Parameter CW RF Power Dissipation DC Voltage Operating Temperature Range Storage Temperature Range P VDC Rating 0 ±30 -10 ~ +60 -40 ~ +85 Unit dBm V °C °C TA Tstg Electronic Characteristics Parameter Frequency (25°C) Insertion Loss Quality Factor Temperature Stability Unloaded Q-Value 50Ω Loaded Q-Value Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year Nominal Frequency Tolerance from 479.
50 MHz Sym fC Minimum NS 25 1.
0 1.
8 Typical 479.
50 1.
3 11,960 1,650 fc -0.
032 16.
0 63.
5614 1.
7350 2.
1 Maximum NS ± 75 1.
8 55 10 23.
0 2.
4 Unit MHz KHz dB °C KHz ppm/°C MΩ Ω µH fF pF 2 ∆fC IL QU QL TO fO FTC |fA| RM LM CM CO ppm/yr DC Insulation Resistance Between any Two Pins RF Equivalent RLC Model Motional Resistance Motional Inductance Motional Capacitance Pin 1 to Pin 2 Static Capacitance NS = Not Specified Notes: 1.
The center frequency, fC, is measured at the minimum IL point with the resonator in the 50Ω test system.
Unless noted otherwise, case temperature TC = +25°C ± 2°C.
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.
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].
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 Pin1 and Pin2.
The measurement includes case parasitic capacitance.
6.
Deriv...


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