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| Tel : +44 118 979 1238 Fax : +44 118 979 1283 Email: info@actcrystals.com The ACTR418/418.0/TO39 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile metal TO-39 case. It provides reliable, fundamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 418.000 MHz. 1.Package Dimension (TO-39) Pin 1 2 3 Dimension A B C D E Configuration Input / Output Output / Input Case Ground Data (unit: mm) 9.300.20 5.080.10 3.400.20 30.2050.20 0.450.20 3.Equivalent LC Model and Test Circuit 4.Typical Application Circuits 1) Low-Power Transmitter Application 2) Local Oscillator Application In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice. ISO9001: 2000 Registered - Registration number 6830/2 For quotations or further information please contact us at: 3 The Business Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK Issue : 1 C1 Date : SEPT 04 http://www.actcrystals.com 1 OF 3 Tel : +44 118 979 1238 Fax : +44 118 979 1283 Email: info@actcrystals.com 5.Typical Frequency Response 6.Temperature Characteristics 7.Performance 7-1.Maximum Ratings Rating CW RF Power Dissipation DC Voltage Between Any Two Pins Case Temperature Value 0 30V -40 to +85 Units dBm VDC C 7-2.Electronic Characteristics Characteristic Centre Frequency (+25C) Insertion Loss Unloaded Q Quality Factor 50 Loaded Q Turnover Temperature Temperature Stability Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year Absolute Frequency Tolerance from 418.000MHz Sym fC fC IL QU QL T0 f0 FTC |fA| Minimum 417.925 Typical Maximum 418.075 Units MHz kHz 75 1.5 12,500 2,000 25 fC 0.03 10 1.0 55 2.0 dB C kHz ppm/C 2 ppm/yr M DC Insulation Resistance Between Any Two Pins Motional Resistance RF Equivalent RLC Model Motional Inductance Motional Capacitance Pin 1 to Pin 2 Static Capacitance RM LM CM C0 19 90.6653 1.6006 1.7 2.0 26 H fF 2.3 pF iCAUTION: Electrostatic Sensitive Device. Observe precautions for handling! In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice. ISO9001: 2000 Registered - Registration number 6830/2 For quotations or further information please contact us at: 3 The Business Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK http://www.actcrystals.com 2 OF 3 Issue : 1 C1 Date : SEPT 04 Tel : +44 118 979 1238 Fax : +44 118 979 1283 Email: info@actcrystals.com 1. 2. 3. 4. 5. 6. 7. 8. 9. The centre frequency, f C, is measured at the minimum IL point with the resonator in the 50 test system. Unless noted otherwise, case temperature T C = +25C2C. Frequency aging is the change in f C 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, f 0. The nominal frequency at 2 any case temperature, TC, may be calculated from: f = f 0 [1 - FTC (T 0 - TC) ]. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance C 0 is the measured static (non-motional) capacitance between Pin1 and Pin2. The measurement includes case parasitic capacitance. Derived mathematically from one or more of the following directly measured parameters: f C, IL, 3 dB bandwidth, fC versus TC, and C 0. 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. In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice. ISO9001: 2000 Registered - Registration number 6830/2 For quotations or further information please contact us at: 3 The Business Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK http://www.actcrystals.com 3 OF 3 Issue : 1 C1 Date : SEPT 04 |
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