79MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS07903 www.sipatsaw.com Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz 78.9 79 79.1 Insertion Loss dB - 30.5 31.5 1 dB Bandwidth MHz 3.85 3.86 - 3 dB Bandwidth MHz - 4.03 - 35 dB Bandwidth MHz - 4.63 4.7 40 dB Bandwidth MHz - 4.67 - 45 dB Bandwidth MHz - 4.7 5 50 dB Bandwidth MHz - 4.72 5.8 55 dB Bandwidth MHz - 4.75 13.8 Passband Variation dB - 0.7 1.0 Absolute Delay usec - 4.1 4.5 Ultimate Rejection(f0±15MHz) dB 60 62 - Material Temperature coefficient KHz/°C 0.08 Ambient Temperature °C 25 DIP3512 (35.0x12.8x4.7mm3) Package Size Notes: 1. All specifications are based on the test circuit shown 2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature 3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances 4. This is the optimum impedance in order to achieve the performance show Matching Configuration L1 INPUT 50Ω L1=L2=270nH L2 OUTPUT 50Ω C1=22pF C2=36pF Source/Load Impedance=50 ohm C1 C2 Notes - Component values may change depending on board layout. SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62808818 Part Number LBS07903 Rev. Date 2007-3-14 Ver. 1.0 Fax: +86-23-62805284 Page 1/4 www.sipatsaw.com / [email protected] 79MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS07903 www.sipatsaw.com Package Dimension 35.00±0.5 12.80±0.5 4.7 4.5 0.45±0.05 2.54±0.2 2.54±0.2 Input 1 Output 5 Ground 2,3,4,6 Unit: mm SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62808818 5 6 1 Package: DIP3512 7.62±0.2 4 3 2 25.40±0.2 Part Number LBS07903 Rev. Date 2007-3-14 Ver. 1.0 Fax: +86-23-62805284 Page 2/4 www.sipatsaw.com / [email protected] 79MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS07903 www.sipatsaw.com Typical Performance Frequency Respond Passband Respond Type Performance -28.9575 -20.4575 -30.4575 -40.4575 -50.4575 3dB CF = 79.0466MHz 1dB = 3.8607MHz 3dB = 4.0292MHz 40dB = 4.6679MHz Insert Loss = -30.4575dB Passband Ripple = 0.66571dB Ultimate Rejection = 49.2251dB Group Delay = 91.7631ns Phase Linearity = 3.5429deg Absolute Delay = 4143.3493ns -29.4575 -29.9575 -30.4575 Magnitude(dB) -60.4575 -30.9575 -70.4575 -80.4575 -31.4575 -90.4575 -31.9575 -100.4575 -32.4575 -110.4575 -120.4575 65 70 75 80 Frequency(MHz) Horizontal: 5MHz/Div 85 -32.9575 70 90 Vertical: 10dB/Div 72 74 76 78 80 Horizontal: 2MHz/Div Group Delay Variation(f0±1.88MHz) 82 84 86 88 Vertical: 0.5dB/Div Phase Linearity(f0±1.88MHz) Type Performance Type Performance 4350 10 4300 8 6 4 X: 77.13 Y: 4169 4200 X: 79 Y: 4152 Degree(deg) Group Delay Time(ns) 4250 X: 80.88 Y: 4121 4150 4100 X: 79 Y: 0.9482 X: 77.13 Y: 0.427 2 X: 80.88 Y: 0.2089 0 -2 -4 4050 -6 4000 -8 78 79 80 Frequency(MHz) Horizontal: 1MHz/Div 81 82 83 Vertical: 50ns/Div 76 77 78 79 80 Frequency(MHz) Horizontal: 1MHz/Div Smith Chart S11 0.0 -j5.0 0.5 ∞ +j5.0 0.2 5.0 2.0 1.0 -j0.2 +j2.0 +j0.2 +j5.0 0.5 +j0.2 0.2 Vertical: 2deg/Div +j0.5 +j2.0 -j0.2 -j2.0 ∞ -j5.0 -j0.5 -j2.0 -j1.0 -j1.0 SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62808818 83 +j1.0 +j0.5 -j0.5 82 Smith Chart S22 +j1.0 0.0 81 5.0 77 2.0 76 -10 75 1.0 3950 75 Part Number LBS07903 Rev. Date 2007-3-14 Ver. 1.0 Fax: +86-23-62805284 Page 3/4 www.sipatsaw.com / [email protected] 79MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS07903 www.sipatsaw.com Maximum Ratings Operating Temperature Range °C [-40°C;+85°C] Storage Temperature Range °C [-40°C;+105°C] DC Voltage V 0 Input Power dBm 10 max 1 ESD Class SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62808818 Part Number LBS07903 Rev. Date 2007-3-14 Ver. 1.0 Fax: +86-23-62805284 Page 4/4 www.sipatsaw.com / [email protected]