Tel : +44 118 979 1238 Fax : +44 118 979 1283 Email: [email protected] The ACTR303.875/303.875/F11 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile metal F-11 case. It provides reliable, fundamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 303.875 MHz. 1.Package Dimension (F-11) Pin Configuration 1,4 Input / Output 2/3 Case Ground Dimension Data (unit: mm) A 11.0±0.3 B 4.5±0.3 C 3.2±0.3 D 0.45±0.1 E 5.0±0.5 F 2.54±0.2 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 http://www.actcrystals.com 1 OF3 Issue : 1 C1 Date : SEPT 04 Tel : +44 118 979 1238 Fax : +44 118 979 1283 Email: [email protected] 5.Typical Frequency Response 6.Temperature Characteristics 7.Performance 7-1.Maximum Ratings Rating CW RF Power Dissipation DC Voltage Between Terminals Case Temperature Value Units 0 dBm ±30V VDC -40 to +85 °C 7-2.Electronic Characteristics Characteristic Centre Frequency (+25°C) Sym Minimum Absolute Frequency fC 303.800 Tolerance from 303.875 MHz ∆fC ±75 IL 1.3 Unloaded Q QU 14,150 50 Ω Loaded Q QL 1,950 Turnover Temperature T0 Turnover Frequency f0 fC kHz Frequency Temperature Coefficient FTC 0.032 ppm/°C 2 Absolute Value during the First Year |fA| ≤10 ppm/yr Insertion Loss Quality Factor Temperature Stability Frequency Aging DC Insulation Resistance Between Any Two Pins RF Equivalent RLC Model Typical 25 Maximum Units 303.950 MHz kHz 1.8 dB 55 °C 1.0 MΩ RM 16 Motional Inductance LM 118.5326 µH Motional Capacitance CM 2.3166 fF Pin 1 to Pin 4 Static Capacitance C0 2.3 2.6 23 Ω Motional Resistance 2.9 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 OF3 Issue : 1 C1 Date : SEPT 04 Tel : +44 118 979 1238 Fax : +44 118 979 1283 Email: [email protected] 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 Ω test system. Unless noted otherwise, case temperature T C = +25°C±2°C. Frequency aging is the change in f C 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, 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 Pin4. 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 OF3 Issue : 1 C1 Date : SEPT 04