shenzhen luguang electronic technology co.,l td . 1 1. scope this specification shall be applied to ceramic discriminator for quadrature detection with communication ic. 2. part no. : CDBC455C24 3.outline drawing and dimensions 3.1 appearance :no visible damage and dirt. 3.2 dimensions :see figure 1. 3.3 construction :to be packaged in s ynthetic resin and shield with resin the bottom. 4.electrical characteristics(0 to +40 ) 4.1 lest method 4.1.1 input signal condition :80db 4.1.2 frequency deviation : 4.0khz 4.1.3 modulation frequency :1.0khz 4.2 characteristics item requirements 4-2-1 recovered audio 3db bandwidth(from 455khz) 4.0khz min. 4-2-2 recovered audio output voltage(at 455khz) 100 40mv 4-2-3 distortion(at 455khz) 2.0% max. 4-2-4 withstanding voltage 50v d.c. for 1 minute 5.absolute maximum ratings item requirements 5-1 withstanding voltage 50v d.c. for 1 minute 5-2 insulation resistance 100m min. at d.c.100v 5-3 input signal level 5dbm (50 termination) 5-4 operating temperature range -20 to +80 5-5 storage temperature range -40 to +85 CDBC455C24 ceramic discriminator
shenzhen luguang electronic technology co.,l td . 2 6. physical and environmental characteristics 6.1 vibration discriminator shall be measured after be ing applied vibration of amplitude to 1.5mm with 600 to 3,300 r.p.m band of vibrati on frequency to each of 3 perpendicular direction for 24 hours. the measur ed values shall meet table 1. 6.2 random drop discriminator shall be measured after 3 times random dropping from the height of 30cm on concrete floor. the measured values shall meet table 1. 6.3 temperature characteristics discriminator shall be measured within -20 to +80 temperature range. the measured values shall meet table 1. 6.4 humidity after being placed in a chamber w ithin +90 to 95% r.h. at +40 2 for a period of min.100 hours and then being placed in room temperature for 24 hours, the discriminator shall be measured. the measured values shall meet table 1. 6.5 life test(high temp.) the discriminator shall be measured af ter being placed in a chamber with 80 for 100 hours and then being placed in room temperature for min.24 hours. the measured values shall meet table 1. 6.6 life test(low temp.) the discriminator shall be measured af ter being placed in a chamber with -20 for 100 hours and then being placed in room temperature for min.24 hours. the measured values shall meet table 1. 6.7 thermal shock after temperature cycle from -20 (30 minutes) to +85 (30 minutes) was performed 5 times and then being placed in room temperature for min.24 hours. the measured values shall meet table 1. measurements requirements recovered audio 3db bandwidth(from 455khz) 4.0khz min. recovered audio output voltage(at 455khz) 100 40mv distortion(at 455khz) 2.0% max. withstanding voltage 50v d.c. for 1 minute. table 1 CDBC455C24 ceramic discriminator
shenzhen luguang electronic technology co.,l td . 3 figure.1 dimensions figure.2 test circuit for ceramic discriminator CDBC455C24 ceramic discriminator
shenzhen luguang electronic technology co.,l td . 4 7. notice 1) discriminator might be damaged when an excess stress will be applied. 2) this component should be passed thr ough flow soldering and board washing process. please confirm if the component keeps appropriate characteristics after going through your soldering and washing processes before starting mass production. any kind of reflow soldering must not be applied on the component. 3) this specification describes about the ability of the component itss1f. please make sure that the component is evaluate d and confirmed by mounting onto your products (circuit) before actual use. 8.package form CDBC455C24 ceramic discriminator
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