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980.00 MHz One-Port SAW Resonator
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Ideal for 980.00 MHz Transmitters Very Low Insertion Loss Quartz Stability Rugged, Hermetic, Low Profile TO-39 Package
SR980
Absolute Maximum Rating (Ta=25C) 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 (25C) Insertion Loss Quality Factor Temperature Stability Unloaded Q-Value 50 Loaded Q-Value Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year Nominal Frequency Tolerance from 980.00 MHz Sym fC Minimum NS 25 1.0 2.05 Typical 980.00 1.3 11,880 1,500 fc -0.032 16.0 28.2725 0.9338 2.35 Maximum NS 150 1.8 55 10 23.0 2.65 Unit MHz KHz dB C KHz ppm/C
2
fC
IL QU QL TO fO FTC |fA| RM LM CM CO
ppm/yr M H fF pF
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 50 test system. Unless noted otherwise, case temperature TC = +25C 2C. Frequency aging is the change in fC with time and is specified at +65C or less. Aging may exceed the specification for prolonged temperatures above +65C. 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. Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and C0. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. 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 e-mail to sales@vanlong.com.
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Phone: +86 10 6301 4184 (c) 2004 by Vanlong Technology Co., Ltd.
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com SR980
980.00 MHz One-Port SAW Resonator
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) Min Max 9.10 9.50 3.20 3.60 2.80 3.20 0.25 0.65 4.98 5.18 2.54 Nominal 0.4 0.5
Marking
Equivalent LC Model and Test Circuit
SR980 980.00
Ink Marking Color: Black or Blue
Typical Application Circuit
Low Power Transmitter Application Local Oscillator Application
Typical Frequency Response
Temperature Characteristics
fc = fo, Tc = To (f - fo)/fo (ppm)
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 (c) 2004 by Vanlong Technology Co., Ltd.
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com SR980

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