saw components data sheet r 771
2 mar 03, 2004 saw components r 771 314,875 / 315,125 mhz resonator data sheet ceramic package qcc8c features n 1-port resonator (2 resonators in 1 housing) n provides reliable, fundamental mode, quartz fre- quency stabilization i.e. in transmitters or local oscillators n protection layer: protec terminals n ni, gold plated dimensions in mm, approx. weight 0,1 g pin configuration 1 input reso 1 3 input reso 2 7 output reso 1 5 output reso 2 4,8 ground (case) 2,6 float e lectrostatic s ensitive d evice ( esd ) type ordering code marking and package according to packing according to r 771 b39311-r 771-u310 c61157-a7-a56 f61074-v8169-z000 maximum ratings operable temperature range t a C45/+120 ?c storage temperature range t stg C45/+120 ?c dc voltage v dc 12 v between any terminals source power p s 0 dbm c1 c2 c02 c01 1 7 35 r1 l1 r2 l2
3 mar 03, 2004 saw components r 771 314,875 / 315,125 mhz resonator data sheet characteristics resonator 1 reference temperature: t a = 25 ?c terminating source impedance: z s = 50 w terminating load impedance: z l = 50 w min. typ. max. center frequency resonator 1 1) 1) center frequency is defined as the maximum of the real part of the admittance. f c 314,825 314,875 314,925 mhz frequency offset resonator 2 to resonator 1 f offset 200,0 250,0 300,0 khz minimum insertion attenuation a min 1,3 1,6 db unloaded quality factor q u 9600 13200 ageing of f c 50 ppm equivalent circuit elements motional capacitance c 1 2,39 ff motional inductance l 1 106,94 m h motional resistance r 1 1622 w parallel capacitance 2) 2) if used in two port configuration (pin 1-input, pin 7-output) c 0 is reduced by approx. 0,3 pf. c 01 3,1 pf temperature coefficient of frequency 3) 3) temperature dependence of f c : f c ( t a ) = f c ( t 0 )(1 + tc f ( t a C t 0 ) 2 ) tc f C 0,03 ppm/k 2 turnover temperature t 0 030?c
4 mar 03, 2004 saw components r 771 314,875 / 315,125 mhz resonator data sheet characteristics resonator 2 reference temperature: t a = 25 ?c terminating source impedance: z s = 50 w terminating load impedance: z l = 50 w min. typ. max. center frequency resonator 2 1) 1) center frequency is defined as the maximum of the real part of the admittance. f c 315,075 315,125 315,175 mhz frequency offset resonator 2 to resonator 1 f offset 200,0 250,0 300,0 khz minimum insertion attenuation a min 1,3 1,6 db unloaded quality factor q u 9600 13200 ageing of f c 50 ppm equivalent circuit elements motional capacitance c 2 2,38 ff motional inductance l 2 107,32 m h motional resistance r 2 1622 w parallel capacitance 2) 2) if used in two port configuration (pin 3-input, pin 5-output) c 0 is reduced by approx. 0,3 pf. c 02 3,1 pf temperature coefficient of frequency 3) 3) temperature dependence of f c : f c ( t a ) = f c ( t 0 )(1 + tc f ( t a C t 0 ) 2 ) tc f C 0,03 ppm/k 2 turnover temperature t 0 030?c
5 mar 03, 2004 saw components r 771 314,875 / 315,125 mhz resonator data sheet published by epcos ag surface acoustic wave components division, saw ce ae pd p.o. box 80 17 09, d-81617 mnchen ? epcos ag 2004. all rights reserved. reproduction, publication and dissemination of this bro- chure and the information contained therein without epcos prior express consent is prohibited. t he information contained in this brochure describes the type of component and shall not be con- sidered as guaranteed characteristics. purchase orders are subject to the general conditions for t he supply of products and services of the electrical and electronics industry recommended by the zvei (german electrical and electronic manufacturers association), unless otherwise agreed. t his brochure replaces the previous edition. 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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