SAW Bandpass Filter F3256 z RF bandpass filter z High attenuation z Usable bandwidth 6.6MHz z No matching 50Ω single-ended operation z Ceramic Surface Mounted Device (SMD) Package 2.08±0.15 Package Dimensions 5.00±0.15 1.2±0.15 3 7 7 1 6 6 2 5 5 3 4 1.27±0.05 2 ITF 3256 8 1.35±0.15 5.00±0.15 8 1 0.6±0.15 Features 4 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 6 Output 1, 3, 4, 5, 7, 8 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. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 1/7 SAW Bandpass Filter F3256 Specifications Fc = 325.3MHz Terminating source impedance : 50Ω Terminating load impedance : 50Ω Minimum Typical Maximum MHz - 325.3 - Insertion Loss (Fc +/- 3.3 MHz) dB - 3.0 3.5 Amplitude Ripple (Fc +/- 3.3 MHz) dB - 1.0 2.0 Absolute Group Delay at Fc nsec - 80 - Group Delay Variation (Fc +/- 3.3 MHz) nsec - 50 - - 1.5 2.0 dB 50 50 55 55 - ppm/°C - -80 - Center Frequency ( Fc ) VSWR (Fc +/- 3.3 MHz) Relative Attenuation … ~ Fc - 40 MHz Fc + 40 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. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 2/7 SAW Bandpass Filter F3256 Matching Schematic ( Actual matching values may vary due to PCB layout and parasitics ) Input 50Ω Output 50Ω Marking Configuration ITF1) 32562) 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. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 3/7 SAW Bandpass Filter F3256 Typical Performance ( at 25℃ ) CH1 S21 LOG 10 dB/ 2 REF 0 dB 6 Apr 2004 21:51:37 2: . 85200 dB 6. 600 000 MHz 1 PRm CH1 Markers mean : -2 . 5482 dB Cor REF=1 s. dev : . 28090 dB p-p : . 86610 dB CENTER 325 . 300 000 MHz CH1 S21 LOG 10 dB/ REF1 0 dB SPAN 100 . 000 000 MHz 3 Apr 2004 11:05:42 1: -2 . 6739 dB 325 . 300 000 MHz C START . 030 000 MHz I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 STOP 1 000 . 000 000 MHz Part No. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 4/7 SAW Bandpass Filter F3256 Input / Output VSWR Charts CH1 S11 SWR 1 / 3 Apr 2004 11:01:04 1: 1. 5016 325 . 300 000 MHz REF 1 Cor CH1 S22 SWR 1 / 3 Apr 2004 11:01:13 1: 1. 5130 325 . 300 000 MHz REF 1 Cor 1 1 CENTER 325 . 300 000 MHz SPAN 100 . 000 000 MHz CENTER 325 . 300 000 MHz SPAN 100 . 000 000 MHz Input / Output Smith Charts CH1 S11 1 U FS 1: 34. 922 -8 . 0664 3 Apr 2004 11:00:43 60. 654 pF 325 . 300 000 MHz Cor CH1 S22 1 U FS -7 . 4707 1: 34. 375 3 Apr 2004 11:00:53 65. 490 pF 325 . 300 000 MHz Cor 1 1 CENTER 325 . 300 000 MHz SPAN 100 . 000 000 MHz I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 CENTER 325 . 300 000 MHz SPAN 100 . 000 000 MHz Part No. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 5/7 SAW Bandpass Filter F3256 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. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 6/7 SAW Bandpass Filter F3256 Carrier Tape Dimensions [unit : mm] A 5.50 ± 0.1 B 5.50 ± 0.1 C 7.25 ± 0.1 D 1.95 ± 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. F3256 Rev. Date 2004-04-12 Rev. NS3002-AS01 7/7