SAW Bandpass Filter 252905B 1. Features IF Bandpass Filter High Attenuation Single-Ended Operation DIP Package Maximum Storage Temperature Range : -40℃ ~ 85℃ Electrostatics Sensitive Device (ESD) Package : D3512 2.5±0.2 25.4±0.2 7.6±0.2 0.45±0.05 5.5max 6.0max ITF 08A001 252905B 125-29.2M 35.1±0.5 12.8±0.5 2.5±0.2 2. Package Dimension Pin Configuration 1 5 Output 2, 4 Ground 3, 6 Case ground Dimensions shown are nominal in millimeters Base : Fe(SPCC), Au plating over Ni plated Cap : Cu & Cr Alloy, Ni Plated Termination : Kovar, Au Plated I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Input Part No. 252905B Rev. Date 2009-04-28 Rev. NM8077-CS02 1/5 SAW Bandpass Filter 252905B 3. Specifications Fo = 125.0 MHz Terminating source impedance : 50Ω and matching network Terminating load impedance : 50Ω and matching network Minimum Typical Maximum MHz - 125.0 - dB - 34.0 36.0 1dB Bandwidth MHz 29.15 29.24 - 3dB Bandwidth MHz - 29.45 - 50dB Bandwidth MHz - 30.37 30.55 dB - 0.5 1.2 Group Delay Variation (fo ± 14.52 MHz) nsec - 30 80 Absolute Delay usec - 4.3 - dB 58 62 - dBm - - 10 ppm/°C - -18 - Center Frequency Insertion Loss Amplitude Ripple (fo ± 14.52 MHz) Ultimate Rejection Input power Temperature Coefficient of Frequency *For Rejection, Smoothing ON Notes : 1) All specifications are based on the matching schematic shown below 2) All specifications are measured by Agilent Network analyzer and full 2 port calibration at room temperature 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. 252905B Rev. Date 2009-04-28 Rev. NM8077-CS02 2/5 SAW Bandpass Filter 252905B 4. Matching Schematic ( Actual matching values may vary due to PCB layout and parasitics ) Input 50Ω L1 L4 L2 Output 50Ω L3 L1 = 56nH, L2 = 68nH L3 = 82nH, L4 = 56nH 5. Marking Configuration ITF1) 08A0012) 252905B3) 1254)-29.2M5) 1) Manufacturer name 2) Lot Number 3) Part Number 4) Center frequency 5) 1dB-Bandwidth I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. 252905B Rev. Date 2009-04-28 Rev. NM8077-CS02 3/5 SAW Bandpass Filter 252905B 6. Typical Performance ( at +25°°C ) CH1 S21 LOG 28 Apr 2009 00:31:30 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -33.57 dB * CH1Markers 1 BW: 30. 363909 MHz 2 cent : 125. 022811 MHz C REF=1 Q: 4. 1175 1_loss : -33 . 576 dB Hld 3 4 CENTER125. 000 000 MHz CH1 S21 CH2 S21 LOG LOG SPAN 80. 000 000 MHz 20 Dec 2008 18:48:33 1: 0. 0000 dB 0. 000 000 MHz 2:- . 08410 dB -29 . 040 000 MHz 1 dB/ REF -33.86 dB 1 dB/ REF -34.33 dB CH1 Markers C BW: 29. 249267 MHz MARKER 2-3 -29.04 MHz REF=1 cent : 125. 002220 MHz Q: 4. 2737 1 1_loss : -34 . 098 dB 2 3 4 2 3 C CH2 Markers mean:-34 . 100 dB REF=3 s. dev : . 08400 dB p-p : . 49880 dB CENTER125. 000 000 MHz I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 SPAN 36. 000 000 MHz Part No. 252905B Rev. Date 2009-04-28 Rev. NM8077-CS02 4/5 SAW Bandpass Filter 252905B CH1 S21 CH2 S21 LOG DEL 20 Dec 2008 18:48:46 1: 0. 0000 dB 0. 000 000 MHz 2: 395. 63 ps -29 . 040 000 MHz 1 dB/ REF -33.86 dB 100 ns/ REF 4.281 us CH1Markers BW: 29. 450647 MHz C CH1 S21 LOG 28 Apr 2009 00:32:36 1:-33 . 681 dB 125. 000 000 MHz 10 dB/ REF -33.57 dB REF=1 Smo cent : 125. 009350 MHz 1 C Q: 4. 2447 1_loss : -34 . 100 dB 1 Avg 15 2 2 Smo C 3 4 3 CH2Markers mean: 4. 2984 us REF=3 s. dev: 5. 0101 ns p-p : 27. 297 ns CENTER125. 000 000 MHz CH1 S21 LOG CENTER125. 000 000 MHz SPAN 36. 000 000 MHz 20 Dec 2008 18:49:46 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -33.74 dB CH1Markers 2:-57 . 409 dB 125. 000 MHz CH1 S11 CH2 S22 SWR SWR 5 / 5 / SPAN 80. 000 000 MHz 5 Dec 2008 16:14:09 1: 2. 7847 124. 930 000 MHz 2: 2. 8950 125. 000 000 MHz REF 2.783 REF 2.891 REF=1 C 3:-56 . 682 dB 250. 000 MHz 1 1 C 2 3 2 START . 010 000 MHz STOP 450. 000 000 MHz I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 CENTER125. 000 000 MHz SPAN 80. 000 000 MHz Part No. 252905B Rev. Date 2009-04-28 Rev. NM8077-CS02 5/5