1 scope this specification relates to piezoelectric ceramic resonator to be used in a clock generating circuit for microprocessors. 2 part number: zta8.0mt ztt8.0mt 3 electrical characteristics no. item requirements 1 oscillating frequency 8.0mhz 0.5% 2 resonant resistance 30 max 3 temperature stability of oscillating frequency(-20 to 80 ) 0.5% 4 rated voltage dc50vmax 5 maximum input voltage 15vp-p 6 insulation resistance 100m min 7 operating temperature -20 to 80 8 storage temperature -30 to 85 9 aging 0.3% 4 test condition and circuit test condition: temperature, 10 to 30 humidity, r.h.40% to 80% oscillating frequency m easuring circuit:figure 2 other electrical proper ties with hp 4149a zta(t)8.0mt ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
figure 1 dimensions mark1: zta8.0mt mark2: ztt8.0mt figure 2 test circuit x1: zta8.0mt x2: ztt8.0mt vdd=5.0v ic:1/6tc4069ubp2 c1=c2=30pf zta(t)8.0mt ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
5 physical and environmental characteristics 1 humidity after the resonator is plac ed in a chamber with 90 to 95% r.h. at 40 2 for 100 hours and then is placed in natural condition for 1 hour, the measured values shall meet table 1. 2 high after the resona tor is placed in a oven with 85 5 for 100 temperature measured and then is placed in natural conditio n for 1 hour, the meas ured values shall meet table 1. 3 low after the resonato r is placed in a oven with -30 5 for 100 temperature hours and then is placed in natural condition for 1 hour, the meas ured values shall meet table 1. 4 heat shock after the heat cycle that the resonator is kept at -30 for 30 minutes and then immediately is placed at 85 for 30 minutes is repeated 10 ti mes and then the resonator is placed in natural condition for 1 hour, the measured value shall meet table 1. 5 random after the resonator is randomly dropped 3 times on concrete drop floor from the height of 1m,the measured values shall meet table 1. 6 vibration after the vibration of amplitude of 1.5mm with varying frequency from 10 to 55 hz for 10 minu tes is applied to the resonator to x, y,z directions,respectivel y,the measured values shall meet table 1. 7 solder heat after the lead terminals are immersed up to 2mm of the reso nator body in soldering bath of 260 10 for 10 seconds and then the reso nator is placed in natu ral condition for 1 hour, the measured va lues shall meet table 1 and the surface of the case shall not show any visible damage. 8 solderability when lead terminals are im mersed in solder ing bath of 230 5 for 5 seconds, 95% of lead te rminals shall be wetted with solder. 9 terminal after the static load of 1 kg is applied to each terminal in axial strength direction fo r 10 seconds,the measured value shall meet table 1 and the re sonator shall not show any visible damage. table 1.re q uirements of electrical characteristics with environments item requireme oscillating frequency 0.3% resonant resistance 30 max zta(t)8.0mt ceramic resonator http://www.luguang.cn mail:lge@luguang.cn
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