saw components data sheet r 2638
2 jan 03, 2000 saw components r 2638 384,05 mhz resonator data sheet metal package to-39 features n 2-port resonator n nominal 180?-phase at resonance n provides reliable, fundamental mode, quartz fre- quency stabilization i.e. in transmitters or local oscillators terminals n nifeco, gold plated dimensions in mm, approx. weight 1,0 g pin configuration 1 input / ouptput 2 output / input 3 ground e lectrostatic s ensitive d evice ( esd ) type ordering code marking and package according to packing according to r2638 B39381-R2638-B110 c61157-a7-a24 f61074-v8072-z000 maximum ratings operable temperature range t a C45/+85 ?c storage temperature range t stg C45/+85 ?c dc voltage v dc 12 v between any terminals source power p s 0 dbm
3 jan 03, 2000 saw components r 2638 384,05 mhz resonator data sheet characteristics reference temperature: t a = 25 ?c terminating source impedance: z s = 50 w terminating load impedance: z l = 50 w 1) temperature dependence of f c : f c ( t a ) = f c ( t 0 )(1 + tc f ( t a C t 0 ) 2 ) min. typ. max. center frequency f c 383,950 384,050 384,150 mhz (center frequency between 3 db points) minimum insertion attenuation a min 8,0 9,5 db phase at f c j 160 ? el. loaded quality factor q l 5000 7800 unloaded quality factor q u 8000 13000 ageing of f c 50 ppm equivalent circuit elements motional capacitance c 1 0,2 ff motional inductance l 1 0,9 m h motional resistance r 1 160 w input / output capacitance c 0 1,7 pf temperature coefficient of frequency 1) tc f C0,03 ppm/k 2 turnover temperature t 0 30 ?c
4 jan 03, 2000 saw components r 2638 384,05 mhz resonator data sheet published by epcos ag surface acoustic wave components division, ofw e ue p.o. box 80 17 09, d-81617 mnchen ? epcos ag 1999. all rights reserved. a s far as patents or other rights of third parties are concerned, liability is only assumed for compo- nents per se, not for applications, processes and circuits implemented within components or assemblies. t he information describes the type of component and shall not be considered as assured characteristics. t erms of delivery and rights to change design reserved. for questions on technology, prices and delivery please contact the sales offices of epcos ag or t he international representatives. due to technical requirements components may contain dangerous substances. for information on t he type in question please also contact one of our sales offices.
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