SAW Bandpass Filter 251951B 1. Features z IF Bandpass Filter z High Selection Filter z Single-Ended Operation z Ceramic Surface Mount Device (SMD) Package z Maximum Storage Temperature Range : -40℃ ~ 85℃ z Electrostatics Sensitive Device (ESD) 2. Package Dimensions 13.30±0.2 8 7.62±0.1 7 1 2 3 8 9 10 11 6 6 ITF04A001 251951B 12 7 1.50±0.1 5 5 4 12 2.54±0.1 11 9 1.61±0.2 6.50±0.2 10 4 3 2 2.54±0.1 1 0.80±0.1 Pad Configuration Package : S1365 11 Input 5 Output 6, 12 Ground Dimensions shown are nominal in millimeters Other Body : Al2O3 Ceramic Lid : Kovar, Ni Plated Terminations : Au plating 0.3 ~ 1.0 um, Over a 1.27 ~ 8.89 um Ni Plating I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Case ground Part No. 251951B Rev. Date 2004-05-24 Rev. NM3025-CS01 1/5 SAW Bandpass Filter 251951B 3. Specifications Fo = 155.0 MHz Terminating source impedance : 50Ω and matching network Terminating load impedance : 50Ω and matching network Minimum Typical Maximum MHz 154.9 155.0 155.1 dB - 23.0 25.0 1dB Bandwidth MHz 19.1 19.25 - 3dB Bandwidth MHz 19.5 19.75 - 40dB Bandwidth MHz - 21.55 21.7 dB - 0.7 1.0 Group Delay Variation (Fo +/- 9.375 MHz) nsec - 30 100 Absolute Delay usec - 1.51 - Ultimate Rejection dB 45 50 - ppm/°C - -72 - Center Frequency Insertion Loss Amplitude Ripple (Fo +/- 9.375 MHz) Temperature Coefficient of Frequency 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. 251951B Rev. Date 2004-05-24 Rev. NM3025-CS01 2/5 SAW Bandpass Filter 251951B 4. Matching Schematic ( Actual matching values may vary due to PCB layout and parasitics ) L1 Input 50Ω L2 C1 Output 50Ω C2 L1 = L2 = 33 nH C1 = C2 = 22 pF 5. Marking Configuration ITF1) 04A0012) 251951B3) 4) 1) Manufacturer name 2) Lot Number 3) Part Number 4) Pad Number 1 Index I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. 251951B Rev. Date 2004-05-24 Rev. NM3025-CS01 3/5 SAW Bandpass Filter 251951B 6. Typical Performance ( at +25℃ ) CH1 S21 LOG 10 dB/ 24 May 2004 10:26:31 1: 0. 0000 dB 0. 000 000 MHz REF -22.03 dB CH1 Markers 1 Cor 2 BW: REF=1 21. 536230 MHz : 154 . 955739 MHz cent Q: 7. 1951 1_loss : -21 . 999 dB 3 4 CENTER 155 . 000 000 MHz CH1 CH2 S21 S21 LOG DEL 1 dB/ 100 ns/ SPAN 54. 000 000 MHz 24 May 2004 10:36:50 1: 0. 0000 dB 0. 000 000 MHz 3: -10 . 880 ns 18. 750 000 MHz REF -21.83 dB REF 1.502 us CH1 Markers BW: Cor 19. 716714 MHz : 154 . 988629 MHz REF=1 cent Q: 7. 8608 1 1_loss : -22 . 007 dB 2 3 Smo Cor 3 CH2 Markers 2 4REF=2 mean : 1. 5096 us s. dev : 5. 9164 ns p-p : 31. 380 ns CENTER 155 . 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 23. 000 000 MHz Part No. 251951B Rev. Date 2004-05-24 Rev. NM3025-CS01 4/5 SAW Bandpass Filter 251951B CH1 CH2 S21 S21 LOG LOG 1 dB/ 1 dB/ 24 May 2004 10:37:22 1: 0. 0000 dB 0. 000 000 MHz 3: . 21430 dB 18. 750 000 MHz REF -21.83 dB REF -22.11 dB CH1 Markers BW: Cor 19. 243658 MHz : 155 . 005841 MHz CH1 S21 LOG 10 dB/ 24 May 2004 10:42:28 1: -21 . 753 dB 155 . 000 000 MHz REF -21.74 dB REF=1 cent Q: 8. 0549 1 1 1_loss : -22 . 005 dB 2 4 3 3 CH2 Markers 2 Cor mean : -22 . 024 dB REF=2 s. dev : . 11690 dB p-p : . 59040 dB CENTER 155 . 000 000 MHz SPAN 23. 000 000 MHz START CH1 CH2 S11 S22 SWR SWR 5 / 5 / 24 May 2004 10:39:57 1: 6. 6499 155 . 000 000 MHz 2: 5. 3638 155 . 000 000 MHz REF 6.651 REF 5.367 Cor CH1 CH2 S11 S22 . 010 000 MHz 1 U FS 1 U FS STOP 500 . 000 000 MHz 1: 7. 5508 2: 9. 3608 -1 . 1726 -2 . 7388 24 May 2004 10:40:05 875 . 66 pF 155 . 000 000 MHz 374 . 92 pF 155 . 000 000 MHz Cor 1 1 Cor 2 CENTER 155 . 000 000 MHz 2 Cor SPAN 54. 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 155 . 000 000 MHz SPAN Part No. 251951B Rev. Date 2004-05-24 Rev. NM3025-CS01 54. 000 000 MHz 5/5