140MHz Low-loss SAW Filter 4.5MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: www.sipatsaw.com LB140DS23 Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz 139.8 140 140.2 Insertion Loss dB - 11.1 13 1 dB Bandwidth MHz 4.5 5.1 - 3 dB Bandwidth MHz 5 5.98 - 35 dB Bandwidth MHz - 8.9 9.2 Passband Variation dB - 0.4 1 Group delay Variation(80% of 3dB) nsec - 70 100 Ultimate Rejection dB 40 45 - Absolute Delay usec - 0.869 - 112LT Subatrate Material °C Ambient Temperature 25 Package Size SF－26 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=22nH L2=150nH L3=220nH L4=150nH Source/Load Impedance=50 ohm 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: +86-23-62920684 Part Number LB140DS23 Rev. Date 2005-5-18 Rev. 1.0 Fax: +86-23-62805284 Page 1/3 www.sipatsaw.com / [email protected] 140MHz Low-loss SAW Filter 4.5MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: www.sipatsaw.com LB140DS23 Package Dimension SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62920684 Part Number LB140DS23 Rev. Date 2005-5-18 Rev. 1.0 Fax: +86-23-62805284 Page 2/3 www.sipatsaw.com / [email protected] 140MHz Low-loss SAW Filter 4.5MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: www.sipatsaw.com LB140DS23 Typical Performance Frequency Respond Wideband Respond Type performance -11.4536 -21.2646 -21.4536 -31.2646 -31.4536 -41.2646 -41.4536 Magnitude(dB) Magnitude(dB) Type performance -11.2646 -51.2646 -51.4536 -61.2646 -61.4536 -71.2646 -71.4536 -81.2646 -81.4536 -91.2646 128 131 134 137 140 143 Frequency(MHz) 146 149 152 -91.4536 100.9 200.8 300.7 400.6 500.5 600.4 Frequency(MHz) 700.3 800.2 900.1 F0± 2.5MHz Group delay Variation F0± 2.5MHz Phase Linearity Simth Chart S11 Simth Chart S22 SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62920684 Part Number LB140DS23 Rev. Date 2005-5-18 Rev. 1.0 Fax: +86-23-62805284 Page 3/3 www.sipatsaw.com / [email protected]