acf45u 8a 2 3 3.75 10 12.5 65 -910 1.0 2.0 200//4 um-1.3x1 acf45u 8b 4 3 3.75 30 12.5 90 910 1.0 4.0 350/6.5//18 um-1.3x2 acf45u 12a 2 3 6.0 15 20.0 65 -910 1.0 2.0 500//5 um-1.3x1 acf45u 12b 4 3 6.0 35 20.0 90 910 1.0 3.0 500//4//12 um-1.3x2 acf45u 15a 2 3 7.5 35 25.0 90 -910 1.0 3.0 650//3//9 um-1.3x1 acf45u 15b 4 3 7.5 35 25.0 90 910 1.0 3.0 650//3//9 um-1.3x2 acf45u 30a 2 3 15.0 10 50.0 65 -910 1.0 2.0 1200//0 um-1.3x1 acf45u 30b 4 3 15.0 30 50.0 80 910 1.0 3.0 1200//0.7//3.5 um-1.3x2 21.4m h z and 45mhz monolithic crystal filters ac f 21u and acf45u series applications: ? mobile communication systems. ? pagers. ? cellular and cordless phones. ? radios. features: ? excellent attenuation bandwidth. ? compact design. 30 m a max. for f< 24 mhz 70 m a max. for f< 80 mhz 45 m a max. for f< 50 mhz 80 m a max. for f> 80 mhz abracon ripple loss terminati n g package part no. pole d b khz d b khz d b khz d b d b impedance* con f. mcf 21.4mhz fundamental series mcf 21.4mhz fundamental series a c f21u 8 a 2 3 3.75 20 18.0 0.5 1.5 850 // 6 u m -1. 3 x1 a c f21u 8 b 4 3 3.75 40 14.0 1.0 2.5 850 // 5 u m - 1. 3 x2 a c f21u 8 c 6 3 3.75 45 8.75 65 12.5 2.0 3.0 850 // 5 s1, m1 a c f21u 8 d 8 3 3.75 65 8.75 90 12.5 2.0 4.0 850 // 5 s2, m2 a c f21u 8 e 10 6 3.75 75 8.75 90 10.5 2.0 5.0 850 // 5 s3, m3 a c f21u 12 a 2 3 6.0 20 25.0 0.5 1.5 1200 // 3 u m -1. 3 x1 a c f21u 12 b 4 3 6.0 40 20.0 1.0 2.5 1200 // 2.5 u m -1. 3 x2 a c f21u 12 c 6 3 6.0 45 14.0 65 20.0 2.0 3.0 120 0 // 2.5 s1, m1 a c f21u 12 d 8 3 6.0 65 14.0 90 20.0 2.0 4.0 120 0 // 2.5 s2, m2 a c f21u 12 e 10 6 6.0 75 14.0 90 20.0 2.0 5.0 120 0 // 2.5 s3, m3 a c f21u 15 a 2 3 7.5 18 25.0 0.5 1.5 1500 // 2.5 u m -1. 3 x1 a c f21u 15 b 4 3 7.5 40 25.0 1.0 2.5 1500 // 2.0 u m -1. 3 x2 a c f21u 15 c 6 3 7.5 45 17.5 65 25.0 2.0 3.0 150 0 // 2.0 s1, m1 a c f21u 15 d 8 3 7.5 65 17.5 90 25.0 2.0 4.0 150 0 // 2.0 s2, m2 a c f21u 15 e 10 6 7.5 75 16.0 90 18.0 2.0 5.0 150 0 // 2.0 s3, m3 a c f21u 30 a 2 3 15.0 15 45 0.5 1.5 1500 // 1.0 u m -1. 3 x1 a c f21u 30 b 4 3 15.0 40 50 1.0 2.5 2200 // 0.5 u m -1. 3 x2 a c f21u 30 c 6 3 15.0 45 35 65 50.0 2.0 3.0 2200 // 0.5 s1, m1 a c f 2 1 u 30 d 8 3 15.0 68 30 80 50.0 2.0 4.0 2200 // 0.5 s2, m2 stopband passband 8 series c hannel s pacing : 12.5 khz 12 series c hannel s pacing : 20.0 khz 15 series c hannel s pacing : 25.0 khz 30 series c hannel s pacing : 50.0 khz u m -1.3 package configuration package configuration : s or m dimensions: inches (mm) 7.8 x 3.2 x 8.0 mm abracon ripple loss terminati n g package part no. pol e d b khz d b khz d b khz d b d b impedance* con f. stopband passband mcf mcf 45mhz fundamental series 45mhz fundamental series see page 78 for package configurations and dimensions. * te r minating impedance = ( w ) // (pf) operating temperature: -20c to +70c. 29 journey ? aliso viejo, ca 92656 ? usa (949) 448-7070 ? f ax : (949) 448-8484 e- mail : abinfo @ abracon.com ? i nternet a ddress : ww w . abracon.com abracon is iso 9001 / q s 9000 certified note: all specifications and markings subject to change without notice abr a con ? corporation 79
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