70MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT70A39 www.sipatsaw.com Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz 69.9 70 70.1 Insertion Loss dB - 26 28.5 3 dB Bandwidth MHz 4.1 4.16 - 35 dB Bandwidth MHz - 4.87 4.9 40 dB Bandwidth MHz - 4.91 - Passband Variation dB - 0.9 1.5 Absolute Delay usec - 3.97 - Ultimate Rejection(Over f0±4MHz) dB 50 58 - Material Temperature coefficient KHz/°C -1.26 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 INPUT 50Ω C2 L1 C1 L1=150nH L2=56nH OUTPUT 50Ω C1=82pF C2=47pF Source/Load Impedance=50 ohm L2 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 LBT70A39 Rev. Date 2010-04-09 Ver. 1.1 Fax: +86-23-62805284 Page 1/4 www.sipatsaw.com / [email protected] 70MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT70A39 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 LBT70A39 Rev. Date 2010-04-09 Ver. 1.1 Fax: +86-23-62805284 Page 2/4 www.sipatsaw.com / [email protected] 70MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT70A39 www.sipatsaw.com Typical Performance Frequency Respond Passband Respond Type Performance -15.969 -25.969 -35.969 Magnitude(dB) -45.969 -55.969 -24.469 3dB CF = 70.0439MHz 1dB = 3.9212MHz 3dB = 4.1615MHz 35dB = 4.8693MHz 40dB = 4.9104MHz Insert Loss = -25.969dB Passband Ripple = 0.89911dB Ultimate Rejection = 55.4003dB Group Delay = 129.5807ns Phase Linearity = 8.1825deg Delay = 3966.7242ns -24.969 -25.469 -25.969 -65.969 -26.469 -75.969 -26.969 -85.969 -27.469 -95.969 -27.969 -105.969 -115.969 55 60 65 70 Frequency(MHz) Horizontal: 5MHz/Div 75 80 64 85 Vertical: 10dB/Div 66 68 70 Horizontal: 2MHz/Div Group Delay Variation(f0±2MHz) 72 74 76 Vertical: 0.5dB/Div Phase Linearity(f0±2MHz) Type Performance Type Performance 20 4400 15 4300 4200 10 X: 70 Y: 4021 X: 71.99 Y: 3.155 5 X: 71.99 Y: 3945 4000 Degree(deg) Group Delay Tim e(ns ) 4100 X: 68.01 Y: 3888 3900 X: 70 Y: -0.6003 X: 68.01 Y: -1.78 0 -5 3800 3700 -10 3600 -15 3500 68 70 Frequency(MHz) Horizontal: 2MHz/Div 72 74 76 -20 62 78 Vertical: 100ns/Div 64 66 68 70 Frequency(MHz) Horizontal: 2MHz/Div Smith Chart S11 +j2.0 +j5.0 0.0 0.5 ∞ -j5.0 -j0.2 +j2.0 +j0.2 0.2 5.0 2.0 1.0 0.5 0.2 78 Vertical: 5deg/Div +j0.5 +j5.0 +j0.2 ∞ -j5.0 -j0.2 -j2.0 -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 76 +j1.0 +j0.5 -j0.5 74 Smith Chart S22 +j1.0 0.0 72 5.0 66 2.0 64 1.0 62 Part Number LBT70A39 Rev. Date 2010-04-09 Ver. 1.1 Fax: +86-23-62805284 Page 3/4 www.sipatsaw.com / [email protected] 70MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT70A39 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 LBT70A39 Rev. Date 2010-04-09 Ver. 1.1 Fax: +86-23-62805284 Page 4/4 www.sipatsaw.com / [email protected]