Bandpass Filter 234251B 1. Features IF bandpass filter Low-Loss Filter Single-ended operation Ceramic Surface Mount Device(SMD) Package Maximum Storage Temperature Range : -40℃ ~ 85℃ Electrostatics Sensitive Device (ESD) 2. Package Dimension 13.30±0.2 7.62±0.1 7 8 9 10 11 5 1.61±0.2 • 1.50±0.1 12 2.54±0.1 6.50±0.2 6 ITF 08A001 234251B 4 3 2 1 2.54±0.1 0.80±0.1 Pin Configuration Package : S1365 Dimensions shown are nominal in millimeters 11 Input 5 Output 6, 12 Ground Other Case ground Body : Al2O3 Lid : Kovar, Ni Plated Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating I T F Co., Ltd. 102-901, Bucheon Technopark 364, Samjeong-Dong, Ojeong-Gu, Bucheon-City, Gyounggi-Do, Korea 421-809 Part No. 234251B Rev. Date 2008-10-13 Rev. NJ8019-CS01 1/5 Bandpass Filter 234251B 3. Specifications Fo = 78.0 MHz Terminating source impedance : 50Ω and matching network Terminating load impedance : 50Ω and matching network Operating temperature range : -25℃ ℃ ~ +85℃ ℃ Minimum Typical Maximum MHz - 78.0 - dB - 19.0 21.0 1dB Bandwidth MHz 41.3 41.9 - 3dB Bandwidth MHz - 42.95 - 40dB Bandwidth MHz - 48.2 48.7 dB - 0.7 1.0 Group Delay Variation (Fo +/- 19.8 MHz) nsec - 30 60 Absolute Delay usec - 0.94 - dB 40 45 - ppm/°C - - 72 - Minimum Typical Maximum Center Frequency (Fc) Insertion Loss Amplitude Ripple (Fo +/- 19.8 MHz) Ultimate Rejection Temperature Coefficient of Frequency (TCF) Room temperature : + 25 ℃ Insertion Loss dB - 19.0 20.5 Amplitude Ripple (Fo +/- 20.12 MHz) dB - 0.7 1.0 nsec - 30 60 Group Delay Variation (Fo +/- 20.12 MHz) 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 3) Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances 4) 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. 234251B Rev. Date 2008-10-13 Rev. NJ8019-CS01 2/5 Bandpass Filter 234251B 4. Matching Schematic ( Actual matching values may vary due to PCB layout and parasitics ) L2 Input 50Ω L3 Output 50Ω C1 L1 L1 = 82 nH, L2 = 47 nH L3 = 120 nH, C1 = 36 pF 5. Marking Configuration ITF1) 08A0012) 234251B3) 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. 234251B Rev. Date 2008-10-13 Rev. NJ8019-CS01 3/5 Bandpass Filter 234251B 6. Typical Performance ( at +25℃ ℃) CH1 S21 LOG 10 dB/ 13 Oct 2008 11:34:26 1: 0. 0000 dB 0. 000 000 MHz REF -18.4 dB CH1 Markers BW: 48. 147304 MHz 1 Cor 2 cent : REF=1 78. 928151 MHz Q: 1. 6393 1_loss : -18 . 941 dB 3 4 CENTER 78. 000 000 MHz CH2 S21 CH4 S21 LOG DEL 1 dB/ 50 ns/ SPAN 155. 000 000 MHz 13 Oct 2008 11:34:44 1: 0. 0000 dB 0. 000 000 MHz 3:-1 . 7695 ns 40. 240 000 MHz REF -18.4 dB REF 912 ns CH2 Markers BW: 42. 951395 MHz cent : REF=1 78. 028258 MHz Q: 1. 8167 1_loss : -18 . 827 dB 1 2 3 4 2 Cor 3 4 Smo CH4 Markers mean: 936. 12 ns Cor REF=2 s. dev : 5. 7261 ns p-p : 30. 296 ns CENTER 78. 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 55. 000 000 MHz 2 Part No. 234251B Rev. Date 2008-10-13 Rev. NJ8019-CS01 4/5 Bandpass Filter 234251B CH2 S21 CH4 S21 LOG LOG 13 Oct 2008 11:34:53 1: 0. 0000 dB 0. 000 000 MHz 3: . 09580 dB 40. 240 000 MHz 1 dB/ REF -18.4 dB 1 dB/ REF -18.4 dB CH1 S21 LOG 13 Oct 2008 11:36:49 1: 0. 0000 dB 0. 000 000 MHz 10 dB/ REF -18.4 dB 1 CH2 Markers CH1 Markers REF=1 BW: 41. 865496 MHz 2:-63 . 597 dB 78. 0000 MHz cent : 77. 944559 MHz Q: 1. 8618 3:-54 . 981 dB 156. 000 MHz 1_loss : -18 . 834 dB 1 4:-73 . 062 dB 234. 000 MHz 2 5:-70 . 971 dB 3 REF=1 4 3 312. 000 MHz 2 Cor 3 CH4 Markers mean:-18 . 865 dB Cor REF=2 2 s. dev : . 08190 dB CENTER 78. 000 000 MHz CH1 S11 CH3 S22 SWR SWR 10 / 10 / SPAN 55. 000 000 MHz 13 Oct 2008 11:35:42 1: 2. 4789 78. 000 000 MHz 2: 3. 6727 78. 000 000 MHz REF 0 REF 0 5 4 p-p : . 59680 dB 4 2 START . 010 000 MHz CH1 S11 CH3 S22 Cor Cor Cor Cor 1 U FS 1 U FS STOP 500. 000 000 MHz 1: 32. 643 2: 27. 137 -33 . 818 45. 975 13 Oct 2008 11:35:14 60. 336 pF 78. 000 000 MHz 93. 809 nH 78. 000 000 MHz 2 1 1 2 CENTER 78. 000 000 MHz SPAN 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 CENTER 78. 000 000 MHz SPAN 155. 000 000 MHz Part No. 234251B Rev. Date 2008-10-13 Rev. NJ8019-CS01 5/5