HB418 418mhz two -port saw resonator tel:+86-755-82973806 fax:+86-755-82973550 e-mail: sales@hoperf.com http://www.hoperf.com page 1 of 3 approved by: checked by: issued by: specification product: saw resonator model: HB418 to-39 hope microelectronics co.,limited
two-port saw resonator HB418 tel:+86-755-82973806 fax:+86-755-82973550 e-mail: sales@hoperf.com http://www.hoperf.com the HB418 is a two-port, 180 surface-acoustic-wave ( saw ) resonator in a low-profile metal to-39 case. it provides reliable, f undamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 418.000 mhz. 1.package dimension (to-39) 2.marking 3.equivalent lc model and test circuit HB418 color: black or blue 4.typical application circuits 1) low-power transmitter application 2) local oscillator application 5.typical frequency response 6.temperature characteristics pin configuration 1 input / output 2 output / input 3 case ground dimension data (unit: mm) a 9.300.20 b 5.080.10 c 3.400.20 d 30.20 M 50.20 e 0.450.20
two-port saw resonator HB418 tel:+86-755-82973806 fax:+86-755-82973550 e-mail: sales@hoperf.com http://www.hoperf.com 7.performance 7-1.maximum ratings rating value unit cw rf power dissipation p 10 dbm dc voltage between any two pins v dc 30 v storage temperature range t stg -40 to +85 operating temperature range t a -10 to +60 7-2.electronic characteristics characteristic sym minimum typical maximum unit absolute frequency f c 417.925 418.075 mhz center frequency (+25 ) tolerance from 418.000 mhz ? f c 75 khz insertion loss il 6.0 8.0 db unloaded q q u 13,000 quality factor 50 ? loaded q q l 6,500 turnover temperature t o 25 55 turnover frequency f o fc khz temperature stability frequency temperature coefficient ftc 0.032 ppm/ 2 frequency aging absolute value during the first year | f a | 10 ppm/yr dc insulation resistance between any two pins 1.0 m ? motional resistance r m 99.5 151 ? motional inductance l m 493.9925 h motional capacitance c m 0.29377 ff rf equivalent rlc model shunt static capacitance c o 1.50 1.75 2.00 pf l caution: electrostatic sensitive devi ce. observe precautions for handling! 2003. all rights reserved. 1. the frequency f c is the frequency of minimum il with the res onator in the specified test fixture in a 50 test system with vswr 1.2:1. typically, f oscillator or f transmitter is less than the resonator f c . 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 tem peratures above +65c. typically, aging is gr eatest 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 ]. typically, oscillator t 0 is 20 less than the specified resonator t 0 . 5. this equivalent rlc model approx imates resonator performance near t he resonant frequency and is provided for reference only. the capacitance c 0 is the measured static (nonmotional) capacitance between either pin 1 and ground or pin 2 and ground. 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 em issions testing and government approval, which is the responsibility of the equi pment manufacturer. 9. our liability is only assumed for the surface acousti c wave (saw) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. 10. for questions on technology, prices and delivery, please contact our sales offices or e-mail sales@hoperf .com .
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