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ECS-21K7.5C Datasheet(PDF) 3 Page - ECS, Inc. |
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ECS-21K7.5C Datasheet(HTML) 3 Page - ECS, Inc. |
3 / 3 page 76 ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM CRYSTAL FILTERS CRYSTAL FILTERS MONOLITHIC CRYSTAL Filters Dø A A OUT L 1.5 GND IN GND Attenuation (dB) ( µ sec) Stopband width Stopband width Attenuation curve Group delay curve Ripple Frequency Loss fo Nominal frequency Passband width Group delay time Attenuation guaranteed Specified attenuation Attenuation t Group delay distortion Spurious response SG MCF C LM C Zt Zt 2-POLE MCF Zt: Terminating Impedance SG MCF C LM C Zt Zt 4-POLE MCF Zt: Terminating Impedance MCF C Dot mark ø 0.43 4.7 11.1 Max. 4.88 ± 0.2 Figure 1) HC-49/U ø 0.35 7.3 Max. 8.0 2.5 Max. 3.75 ±0.2 GND Figure 2) UM-1 Figure 5) MCF Test Circuits Figure 4) SC Pkg with Dimensional Chart Figure 3) MCF Characteristics Curve DIMENSIONS AND ELECTRICAL DIAGRAMS (mm) DIMENSIONS (mm) CASE LW H A B D SC-1 11 8.5 11.5 7.4 2.0 0.30 SC-2 13.4 8.5 11.5 9.8 2.0 0.30 SC-3 15 12.0 15.0 9.0 2.5 0.43 SC-4 18.5 12.0 15.0 13.4 2.5 0.43 SC-5 23.0 12.0 15.0 17.8 2.5 0.43 NOMINAL NUMBER PASSBAND RIPPLE INSERTION STOPBAND STOPBAND GUARANTEED TERMINATING MODEL FREQ. (fO) OF 3dB MIN. MAX. LOSS MAX. MAX. MAX. ATTENUATION IMPEDANCE CASE (MHz) POLES (KHz) (dB) (dB) (dB) (KHz) (dB) (KHz) (dB) (fO ±KHz) (Ohms/pF) ECS-70K15A 70.0 2 ±7.5 1.0 2.5 15 ±25 35 -910 2000//-1.0 UM-1 ECS-70K15B 70.0 4 ±7.5 1.0 4.0 40 ±35 70 ±910 2000//-1.0 UM-1 x 2 ECS-70K20A 70.0 2 ±10 1.0 2.5 15 ±28 35 -910 2500//-1.0 UM-1 ECS-70K20B 70.0 4 ±10 1.0 4.0 35 ±40 70 ±910 2500//-1.0 UM-1 x 2 ECS-90M20A 90.0 2 ±10 1.0 2.5 15 ±30 35 -910 2500//-1.0 UM-1 ECS-90M20B 90.0 4 ±10 1.0 4.0 30 ±30 70 ±910 2500//-1.0 UM-1 x 2 70 MHz & 90 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C) NOMINAL NUMBER PASSBAND RIPPLE INSERTION STOPBAND STOPBAND GUARANTEED TERMINATING MODEL FREQ. (fO) OF 3dB MIN. MAX. LOSS MAX. MAX. MAX. ATTENUATION IMPEDANCE CASE (MHz) POLES (KHz) (dB) (dB) (dB) (KHz) (dB) (KHz) (dB) (fO ±KHz) (Ohms/pF) ECS-55K15A 55.0 2 ±7.5 1.0 2.0 15 ±25 70 -910 600//3.0 UM-1 ECS-55K15B 55.0 4 ±7.5 1.0 3.0 30 ±25 90 ±910 600//1.5 UM-1 x 2 ECS-55K20A 55.0 2 ±10 1.0 2.0 15 ±30 75 -910 910//2.5 UM-1 ECS-55K20B 55.0 4 ±10 1.0 3.0 25 ±25 90 ±910 910//1.0 UM-1 x 2 ECS-55K30A 55.0 2 ±15 1.0 2.0 15 ±50 70 -910 1200//1.5 UM-1 ECS-55K30B 55.0 4 ±15 1.0 3.0 30 ±50 90 ±910 1200//0.7 UM-1 x 2 ECS-55K32A 55.0 2 ±16 0.5 2.5 4 ±29.5 65 -910 1250//1.3 UM-1 ECS-55K32B 55.0 4 ±16 1.0 5.0 30 ±52 80 ±910 1250//0.5 UM-1 x 2 55 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C) |
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