1. scope this specification is applied to the ceramics discriminator used with the type jtcv10.7mg48 for fm receiver. please contact us before using any of the products in the a pplications not described above. 2. part no.: part number customer part no specification no jtcv10.7mg48 3. outline drawing: appearance: no visible damage and dirt. dimensions: j10.7 unit:mm jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
4 . electrical specifications and rating 4.2 rating item requirements temp. coefficient of frequency (ppm / ) max 100 cente r frequency drift -10 +70 insulation resistance ri,(m )min 100m ? d.c. 10v withstanding voltage 50vdc, 1min 4.1 electrical specifications ite m requirements center frequency fo (mhz) a 10.700mhz 30khz red recovered audio voltage (at fo) (mv) min 700 distortion (at fo) (%) max 1.0 recovered au d io 3db bandwidth (khz) min 400khz 5 test 5.1 test conditions parts shall be measured under a condition ( temp. 2015 ,humidity 6520% r.h.) unless the standard condition(temp. 252 ,humidity 655% r.h.) is regulated to measure. 5.2 test circuit: 2.2 22 0.022 0.022 0.033 0.1 270 ? 1k 330p af in ta8132n(toshiba) vcc(3v) af out d c out vcc(3v) lt10.7m 1234567891011 14 24 23 22 21 20 19 18 17 16 15 12 13 x jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
5.2.1 input signal input level 112db v modulation frequency 1000hz frequency deviation 75khz 5.2.2 center frequency fo : center frequency is defined as the frequency at that d.c.output volt age shall correspond to 0.6v. 5.2.3 recovered audio voltage: it is defined as the recovered audio voltage at center frequency fo . 5.2.4 distortion: it is defined as the distortion at center frequency fo . recovered audio 3db bandwidth: it is defined as the difference between the two frequencies wher e the recovered audio voltage 3db from the level of center frequency fo . 6 physical and environmental characteristics no item condition of test performance requirements 6.1 humidity keep the discriminator at 40 2 and 90%~95% rh for 96h4 h. then release the discriminator into the room condition for 1h prior to the measurement. it shall fulfill the specifications in table 1 6.2 high temperature exposure subject the discriminator to 80 5 for 96h4 h. then release the discriminator into the room conditions for 1h prior to the measurement. it shall fulfill the specifications in table 1 6.3 low temperature exposure subject the discriminator to -20 5 for 96h4 h. then release the discriminator into the room conditions for 1h prior to the measurement. it shall fulfill the specifications in table 1 6.4 temperature cycling subject the discriminator to -40 for 30 min. followed by a high temperature of 85 for 30 min. cycling shall be repeated 5 times with a transfer time of 15 s. at the room temperature for 1h prior to the measurement. it shall fulfill the specifications in table 1 6.5 vibration subject the discriminator to vibration for 2 h each in x y and z axis with the amplitude of 1.5mm, the frequency shall be varied uniformly between the limits of 10 hz.~55hz. it shall fulfill the specifications in table 1 6.6 mechanical shock drop the discriminator randomly onto a wooden floor from the height of 1m 3 times. no visible damage and it shall fulfill the specifications in table 1 jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
6.7 resistance to soldering heat passed through the reflow oven under the following condition and left at room temperature for 1 hour before measurement. it shall fulfill the specifications in table 1 temperature at the surface of the substrate time preheat 150 5 60s10s peak 240 5 10s3s 6.8 solderability dipped in 230 5 solder bath for 3s0.5 s with rosin flux (25w t%) ethanol solution. more than 95% of the terminal surface of the discriminator shall be covered with fresh solder. 6.9 board bending mount a glass-epoxy board(width=40mm, thickness=1.6mm),then bend it to 1mm displacement and keepit for 5 s. (see the followingfigure) support bar press head press d mechanical damage such as breaks shall not occur. table 1 specification after test about characteristics item specification after test center frequency drift max. 30khz recovered audio voltage drift max. 2db note the limits in the above table are refe renced to the initi al measurements. jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
7 package to protect the products in storage and transportation it is necessary to pack them outer and inner package .on paper pack, the following requirements are requested. 7.1 dimensions and mark at the end of package, the warn ing (moisture proof, upward put) should be stick to it. 7.2 dimensions and mark (see below) 7.3 section of package package is made of corrugated pape r with thickness of 0.8cm.package has 12 inner boxes, each box has 1 reel(each reel for plastic bag) no. name quantity notes 1 package 1 2 certificate of approval 1 3 label 1 4 tying 2 5 adhesive tape 1.2m 6 belt 2.9m 7 inner box 12 jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
7.4 quantity of package per plastic reel 1000 pieces of piezoelectric ceramic part per inner box 5 reels per package 12 inner boxes 60000 pieces of piezoelectric ceramic part 7.5 reel 7.6 packing method sketch map leader 200mm m ax loaded pocket blank pocket 10 pitches blank pocket 10 pitches max jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
7.7 test condition of peeling strength 8 other 8.1 caution of use 8.1.1 do not use this product w ith bend. please don?t apply excess mechanical stress to the compone nt and terminals at soldering. 8.1.2 the component may be damage d when an excess stress will be applied. 8.1.3 this specification mentions the quality of the component as a single unit. please insure the compone nt is thoroughly evaluated in your application circuit. 8.2 notice 8.2.1 please return one of this specification after your signature of acceptance. 8.2.2 when something gets doubtful w ith this specifications, we shall jointly work to get an agreemen 10max top tape p e e l i n g s t r e n g t h 2 0 - 7 0 g carrier tape jtcv10.7mg48 ceramic discriminator http://www.luguang.cn mail:lge@luguang.cn
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