SAW Bandpass Filter 243.95MHz Features z Narrow bandpass filter z High attenuation z Usable bandwidth 220kHz z Matched 50Ω single-ended operation z Ceramic Surface Mounted Device (SMD) Package 1.00±0.15 1.90±0.15 0.44 3.80±0.15 0.64±0.05 Package Dimensions ITF 2431 3 6 1 0.44 5 5 2 4 4 3 1.27±0.05 2 6 1.40±0.15 3.80±0.15 1 Dimensions shown are nominal in millimeters Pin Configuration Body : Al2O3 Ceramic Lid : Kovar, Ni Plated Terminations : Au plating 0.3 ~ 1.0 um, Over a 1.27 ~ 8.89 um Ni Plating 2 Input 5 Output 1, 3, 4, 6 Case ground Maximum Ratings Parameter Unit Minimum Typical Maximum Operating Temperature Range °C -10 25 60 Storage Temperature Range °C -40 - 85 Power Handling Capability dBm - - - Electrostatics Sensitive Device (ESD) I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 1/7 SAW Bandpass Filter 243.95MHz Specifications Fc = 243.950MHz Terminating source impedance : 50Ω and matching network Terminating load impedance : 50Ω and matching network Minimum Typical Maximum MHz - 243.950 - Insertion Loss (Fc +/- 110 kHz) dB - 3.5 4.0 Amplitude Ripple (Fc +/- 110 kHz) dB - 0.8 1.5 Absolute Group Delay at Fc usec - - 1.2 Group Delay Variation (Fc +/- 110 kHz) nsec - 20 - - 1.5 - dB 30 40 - - ppm/°C - - - Center Frequency ( Fc ) VSWR (Fc +/- 110 kHz) Relative Attenuation Fc ± 600 kHz Fc ± 1.2 MHz Temperature Coefficient of Frequency Notes : 1) All specifications are based on the matching schematic shown below, measured by Agilent Network analyzer and full 2 port calibration. 2) Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances 3) All attenuation measurements are measured relative to insertion loss I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 2/7 SAW Bandpass Filter 243.95MHz Matching Schematic ( Actual matching values may vary due to PCB layout and parasitics ) Input 50Ω C1 C2 L1 C1 = 4.3 pF, Output 50Ω L2 C2 =.4.7 pF, L1, L2 = 68 nH Marking Configuration ITF1) 24312) 1) Manufacturer name 2) Marking Number * Ink or Laser Marking available I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 3/7 SAW Bandpass Filter 243.95MHz Frequency Response I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 4/7 SAW Bandpass Filter 243.95MHz Input / Output VSWR Charts Input / Output Smith Charts I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 5/7 SAW Bandpass Filter 243.95MHz Packing Specification 1. Reeling Quantity : 1000 pcs / reel 2. Taping Structure : The tape shall be wound around the reel in the direction shown below. TOP COVER TAPE REEL CARRIER TAPE Tape Specification 1. Leader part and vacant position specification Vacant 150mm min. Component contained Vacant 150mm min. Leader part 250mm min. END START Tape Running Direction 2. Tensile strength of carrier tape 4.4N/mm width Direction of pull Top cover tape 3. Top cover tape adhesion 0~15 degree 1) pull off angle : 0~15° 2) speed : 300mm/min 3) force : 20~70g I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Carrier tape Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 6/7 SAW Bandpass Filter 243.95MHz Carrier Tape Dimensions [unit : mm] A 4.30 ± 0.1 B 4.30 ± 0.1 C 7.25 ± 0.1 D 1.70 ± 0.1 E 12.00 ± 0.1 F 8.00 ± 0.1 Part Direction Tape Running Direction Reel Dimensions [unit : mm] I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. F2431 Rev. Date 2004-11-01 Rev. NS4001-AS02 7/7