tel : +44 118 979 1238 fax : +44 118 979 1283 email: info@actcrystals.com in keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice. iso9001: 2000 registered 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 of 3 the actr3003/345.0/qcc4a is a true one-port, surface-acoustic-wave ( saw ) resonator in a surface-mount ceramic qcc4a case. it provides reliable, fundamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 345.000 mhz. 1.package dimension (qcc4a) 3.equivalent lc model and test circuit 4.typical application circuits 1) low-power transmitter application 2) local oscillator application pin configuration 1 input / output 3 output / input 2/4 case ground sign data (unit: mm) sign data (unit: mm) a 1.2 d 1.4 b 0.8 e 5.0 c 0.5 f 3.5 issue : 1.1 c1 date : march 2010
tel : +44 118 979 1238 fax : +44 118 979 1283 email: info@actcrystals.com in keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice. iso9001: 2000 registered 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 5.typical frequency response 6.temperature characteristics 7.performance 7-1.maximum ratings rating value units cw rf power dissipation 0 dbm dc voltage between terminals 30v vdc case temperature -40 to +85 c soldering temperature +250 c 7-2.electronic characteristics characteristic sym minimum typical maximum units absolute frequency f c 344.925 345.075 mhz centre frequency (+25 c) tolerance from 345.000 mhz d f c 75 khz insertion loss i l 1.5 2.2 db unloaded q q u 10,020 quality factor 50 w loaded q q l 1,600 turnover temperature t 0 25 55 c turnover frequency f 0 f c khz temperature stability frequency temperature coefficient ftc 0.032 ppm/ c 2 frequency aging absolute value during the first year | fa | 10 ppm/yr dc insulation resistance between any two terminals 1.0 m w motional resistance r m 19 29 w motional inductance l m 87.8796 m h motional capacitance c m 2.4241 ff rf equivalent rlc model shunt static capacitance c 0 2.25 2.55 2.85 pf issue : 1.1 c1 date : march 2010
tel : +44 118 979 1238 fax : +44 118 979 1283 email: info@actcrystals.com in keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice. iso9001: 2000 registered 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 i caution: electrostatic sensitive device. observe precautions for handling! 1. the centre frequency, f c , is measured at the minimum il point with the resonator in the 50 test system. 2. unless noted otherwise, case temperature t c = +25c2c. 3. 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. 4. turnover temperature, t 0 , is the temperature of maximum (or turnover) frequency, f 0 . the nominal frequency at any case temperature, t c , may be calculated from: f = f 0 [1 - ftc (t 0 - t c ) 2 ]. 5. 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 the two terminals. the measurement includes case parasitic capacitance. 6. derived mathematically from one or more of the following directly measured parameters: f c , il, 3 db bandwidth, f c versus t c , and c 0 . 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. issue : 1.1 c1 date : march 2010
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