128.9MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS12901 www.sipatsaw.com Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz 128.8 128.9 129 Insertion Loss dB - 24 28 1 dB Bandwidth MHz - 3.73 - 3 dB Bandwidth MHz 3.8 3.92 - 40 dB Bandwidth MHz - 4.63 - 50 dB Bandwidth MHz - 4.69 - Passband Variation dB - 0.6 1.2 Absolute Delay usec - 3.78 4 f0±2.35MHz dB 35 48 - f0±2.55MHz dB 45 50 - f0±2.95MHz dB 50 57 - f0±6.95MHz dB 55 62 - Ultimate Rejection Material Temperature coefficient KHz/°C 0.13 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 L2 C1 OUTPUT 50Ω L1=100nH L2=82nH C1=C2=47pF Source/Load Impedance=50 ohm 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 LBS12901 Rev. Date 2006-8-6 Rev. 1.0 Fax: +86-23-62805284 Page 1/3 www.sipatsaw.com / [email protected] 128.9MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS12901 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 LBS12901 Rev. Date 2006-8-6 Rev. 1.0 Fax: +86-23-62805284 Page 2/3 www.sipatsaw.com / [email protected] 128.9MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBS12901 www.sipatsaw.com Typical Performance Frequency Respond Passband Respond -21.5 -14.012 -22 -24.012 -34.012 -22.5 -44.012 -23 -54.012 -23.5 -64.012 -24 -74.012 -24.5 -84.012 -25 -94.012 -25.5 -104.012 -26 118.9 120.9 122.9 124.9 126.9 128.9 130.9 132.9 134.9 136.9 138.9 -26.5 127 127.5 128 128.5 129 129.5 130 130.5 Group Delay Variation(f0±1.6MHz) Phase Linearity(f0±1.6MHz) Smith Chart S11 Smith Chart S22 SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62808818 Part Number LBS12901 Rev. Date 2006-8-6 Rev. 1.0 Fax: +86-23-62805284 131 131.5 Page 3/3 www.sipatsaw.com / [email protected]